UL low voltage busway Pow-R-Way III

Transcription

1 echnical Data D E Supersedes December 2013 UL low voltage busway ontents Description Page Description Page General description Standards... 2 onstruction details Electrical data... 8 Physical data ittings Elbows langes Offsets ees rosses ap boes Weatherheads Epansion joints Phase transpositions ransformer taps ransformer throat connections ransformer flange connections Reducers Meter center power takeoffs In-line power takeoff Busway connected panelboards adapters Wall/floor/roof flanges and end closures Hangers Plug-in protective devices SPD plug-in devices Power takeoff sections Receptacle plug-in units Plug-in device electrical data Plug-in device physical data onstruction drawing Installation data inal field fit program Specifications

2 echnical Data D E UL low voltage busway General description Eaton s is a 600 V, totally enclosed, non-ventilated, sandwich bus design available with copper busbars in ratings from 225 to 5000 or with aluminum busbars from 225 to is a vailable in outdoor feeder, indoor feeder, indoor plug-in, and indoor sprinkler-proof configurations. ll four types can be used interchangeably without adapters or special splice plates, provided they are of the same current and system rating. he short-circuit withstand ratings for plug-in busway are equal to those of indoor and outdoor feeder busway. or IE ratings and data, see D E. Standards meets the requirements of NEM, UL 857, S 22.2 No , IEEE, NSI, IE, E, and is manufactured in an ISO 9001 certified facility. is also certified for Seismic Withstand apability in accordance with the earthquake requirements as specified in both the International Building ode (IB) and the alifornia Building ode. eceeds the worst-case Zone 4 required levels and meets all applicable seismic standards for the International Building ode (IB). igure 1. joint design B 3-Phase, 3-Wire with Housing Ground 3WH G B 3-Phase, 3-Wire with 50% Internal or Isolated Ground Bus 3WG or 3WI B N 3-Phase, 4-Wire with Housing Ground and 100% Neutral 4WH G B N 3-Phase, 4-Wire with 50% Internal or Isolated Ground Bus and 100% Neutral 4WG or 4WI igure 2. onductor configurations able 1. Pow-R-Way designations (see igure 2) vailable conductor configurations including grounding and neutral options 3WG 3WI 3WH 3WHG 4WG 4WI 4WH 4WHG 4WNG 4WNI 4WNH 4WNHG B N 3-Phase, 4-Wire with Housing Ground and 200% Neutral 4WNH G B N 3-Phase, 4-Wire with 50% Internal or Isolated Ground Bus and 200% Neutral 4WNG or 4WNI hree-phase, three-wire, 50% internal ground hree-phase, three-wire, 50% isolated internal ground hree-phase, three-wire, 50% integral housing ground hree-phase, three-wire, 100% ground a hree-phase, four-wire, 50% internal ground, 100% neutral hree-phase, four-wire, 50% isolated internal ground, 100% neutral hree-phase, four-wire, 50% integral housing ground, 100% neutral hree-phase, four-wire, 100% ground a, 100% neutral hree-phase, four-wire, 50% Internal Ground, 200% Neutral hree-phase, four-wire, Isolated Internal Ground, 200% Neutral hree-phase, four-wire, 50% Integral Housing Ground, 200% Neutral hree-phase, four-wire, 100% Ground a, 200% Neutral a 100% Ground consists of the 50% integral housing ground combined with a 50% internal ground bus. 2

3 UL low voltage busway onstruction details (igure 3) onductor/insulation system Busbars are fabricated from high-strength, 99.9% conductivity copper or 57% conductivity aluminum. he joint edge of each busway conductor bar is beveled while the Pow-R-Bridge conductor bars have full rounded edges. his makes for a smooth and easy connection between the busway and Pow-R-Bridge joint. he phase and neutral bars are insulated with lass B 130 epoy insulation. he epoy powder is applied by an automated fluidized bed process to ensure uniform thickness. he epoy powder is applied over the full length of the preheated bar ecept for the joint and plug-in contact surfaces. fter the powder has been fused to the busbar, the bars enter an oven to cure. his process ensures that all of the epoy powder cross links and hardens to the busbar. luidized bed applied epoy provides resistance to water absorption and chemical erosion. Epoy has outstanding heat transfer characteristics and is ideally suited for sandwich bus applications. he uniform thickness and smooth surface provided by epoy ensures that the insulation will have no cavities or voids, and also provides ecellent edge coverage to the bars. Epoy has ecellent dielectric strength, is flame-retardant and resists impacts that other lass B insulating material could not withstand. Busbars for plug-in applications have full-sized welded conductor tabs at the contact location points of the plug-in outlet. he tabs are of the same thickness as the conductor bars for all three-wire and 100% neutral configurations. he plug-in conductor tabs etend into the plug-in outlet, maintaining a true sandwich design throughout the entire busway length. he result is improved heat dissipation, better bracing, and elimination of the need to separate, or flare, the conductor bars at the plug-in opening. Maintaining a true sandwich design also eliminates potential pathways for the propagation of flame, smoke, and gas through the busway housing, commonly referred to as the chimney effect. Silver- or tin-plating is applied to all joint and contact surfaces after the fluidized bed epoy is applied. luminum busbars are plated by the lstan 88 process. opper busbars are plated with a flashing process. he plating of the conductor tabs provides an etremely durable contact surface for the spring-loaded connections of bus plug stab assemblies. Housing details (see igure 3) is constructed with a rugged two-piece etruded aluminum housing. here are no seams or welds across the top or bottom sides of the housing. he housing is bolted along the bottom sides below the busbars with high tensile strength zinc-plated hardware. No fastening bolts or screws penetrate the housing or enter the busbar package. achieves the highest 6-cycle short-circuit withstand ratings available in the industry today. he non-magnetic, all-aluminum housing provides for ecellent heat dissipation and a significant reduction in reactance and magnetic flu leakage as compared to a steel or steel and aluminum combination housing. he integrity and strength of the housing ensures specifiers and users of a safe and durable installation over a broad spectrum of industrial and commercial applications. protective finish of NSI 61, epoy powder paint is applied by an automated electrostatic process. echnical Data D E Integral ground he two-piece, etruded aluminum housing is designed, manufactured, and UL Listed as a 50% integral ground path (integral earth) and is fully fault rated. he system ground continuity is maintained through each joint by the ground path end blocks, ground path plates, and joint covers. he aluminum joint covers are furnished with ground path contact surfaces on the inside of each end. When the covers are installed, the contact surfaces are bolted directly to the ground path end blocks with four 3/ inch (12.7 mm) he bolts per cover. highly visible label is furnished on each joint cover to alert the installer that the covers must be properly installed to maintain the ground path. he result is a 50% ground path that ensures ground continuity with very low resistance characteristics. Internal ground offers a 50% ground bus (copper or aluminum) that is internal to the busway. Isolated ground option o meet the growing demand for grounding isolation, offers a 50% isolated ground bus that is insulated and internal to the busway. his option is available for application to operations with heavy microprocessor-based loads or large computer installations where grounding isolation is essential. igure 3. Housing assembly 3

4 echnical Data D E UL low voltage busway 200% neutral option (igure 4) offers a fully rated, 200% neutral bus option for busway fed distribution systems with nonlinear loads. he additional neutral capacity prevents the overheating caused by zero sequence harmonic currents. he 200% neutral is manufactured with a single 0.50 inch (12.7 mm) thick busbar that receives the same silver-plating and lass B, 130 Epoy insulation as the phase bars. Power system harmonics are generated by various types of nonlinear loads. sinusoidal voltage applied to a nonlinear load will result in a non-sinusoidal current and waveform distortion. Loads that are switched or pulsed, such as rectifiers, thyristors, and switch-mode power supplies, are nonlinear. With the proliferation of electronics into industrial, commercial, and institutional applications, nonlinear loads have become a significant and critical component of most modern distribution and control systems. Eamples of nonlinear loads are personal computers, UPS systems, variable frequency motor controllers, electronic lighting ballasts, fa and copying machines, medical test equipment, and many other microprocessor-based apparatus. Nonlinear load currents typically are etremely high in harmonic content. he harmonics create numerous problems in electrical systems and equipment. Some harmonics are negative sequence with 120 phase displacement (this means the phase rotation is B instead of B). Positive sequence harmonics have 120 phase displacement, but are of the same rotation as the distribution system. ertain nonlinear loads cause odd triplen harmonics, which are zero sequence with no phase displacement. Balancing the phase load currents in a three-phase, four-wire system will normally reduce neutral currents to zero if load currents have an undistorted sinusoidal waveform. However, because zero sequence harmonics are additive and will not cancel each other in the neutral, the neutral current can be as high as 1.73 times the phase current, even with the phase currents perfectly balanced. his can result in overheated neutrals and lead to deterioration of equipment performance and a shortened equipment life cycle. he omputer and Business Equipment Manufacturers ssociation (BEM) recommends that neutrals be oversized to at least 173% of the ampacity of the phase conductors to prevent problems. offers a fully rated, 200% neutral bus option for busway fed distribution systems with non-sinusoidal loads. he additional neutral capacity prevents the overheating caused by high harmonic neutral currents. B N, hree-phase our-wire with Housing Ground and 200% Neutral op UL fire stop system busway may be used in UL Listed through-penetration fire stop systems. Systems applicable to busway e.g., system number -J-6002) are listed in the UL ire Resistance Directory under hrough-penetration ire Stop Systems and have met the SEM E814 (UL 1479) criteria. or typical installations shown in igure 5, the installing contractor uses mineral wool batt and fire stop sealant. In riser applications, the system is used in combination with vertical spring hangers and a floor flange. In horizontal applications, the system is used in combination with two wall flanges, one on each side of the wall, and sealant. Notee: his information is provided as a guideline for typical fire stop systems. onsult the fire stop system sealant manufacturer for the UL file number and specific product information. Vertical Hanger Mounting Support loor lange 12 Ga Steel UL Listed Busway loor ire stop Material Suggest 3m, Specified echnologies, or Equivalent Manufacturer ire Stop Products UL 1479 Listed loor lange (Optional) igure 5. ypical installations of in fire stop systems DI SmartBolts DI SmartBolts are an optional torque/tension indicating bolt that can be used in any standard bridge joint (see page 5, Pow-R-Bridge Joint). In place of checking each joint connection with a torque wrench, DI SmartBolts provide a visible indication of a loose or tensioned condition. he bright red indication of a loose fastener will gradually darken as the fastener is tightened until it turns to a deep black color, indicating that the joint has been tightened to the proper torque/tension. Standard preventive maintenance becomes a simple and safe visual inspection. igure % Neutral cross section igure 6. DI SmartBolts 4

5 UL low voltage busway echnical Data D E Pow-R-Bridge (igure 7) joint connections are made with the Pow-R-Bridge joint package, which is installed on each section of busway prior to shipment. double-headed, torque-indicating bolt is provided to ensure that proper installation torque is achieved. all-away instruction tags are furnished on the torque-indicating bolt heads to allow for visual inspection from a distance. When the proper torque value is achieved, the top bolt head will shear off and allow the tag to fall to the floor. ny joint that is improperly torqued will retain the highly visible (caution yellow) tag at the bolt head. he Pow-R-Bridge can provide an adjustment of ±0.50 inch (12.7 mm) at each joint. Over adjustment is prevented by the joint covers, which will only allow a 0.50 inch (12.7 mm) adjustment to be made and by stopping lances on the conductor bars of the Pow-R-Bridge. he non-rotating design of the Pow-R-Bridge maintains its configuration integrity when it has been removed from a section of busway. he conductors and insulators will not displace or swivel, making reinstallation of the Pow-R-Bridge quick and easy. Double-headed orque-indicating Bolt (Bottom) 1/4-20 flg. Head He Bolt (4 per cover) Ground Path ontact Surface Ground Path End Block Bridge Joint Belleville Pressure Plate Washer (op & Bottom) High Strength Glass Polyester Insulators igure 7. Indoor bridge joint features aptive Nut Retainer Ground Path Plate Ground Path End Block 130º Epoy Insulation on Bars Bridge Joint Retainer Screw flg. Head He Bolt (4 per over) Joint over Ground Path Label Outdoor Pow-R-Bridge (igure 8) Joint connections for outdoor feeder as well as sprinkler-proof plug-in busway are made with a weatherized version of the Pow-R-Bridge joint. his two-piece design allows for an ingress protection rating of IP66. his reusable design is made by using special ground plates designed to work with a top and bottom joint cover to form a weatherized seal. his UL Listed package comes with drain plugs and an access cap to the torque bolt per the UL standard. able 2. Busway Pow-R-Bridge joint dimensions UL 857 ampere rating opper igure 9 configurations Dimensions in inches (mm) W L (114.3) 7.38 (187.5) (114.3) 7.38 (187.5) (114.3) 7.38 (187.5) (114.3) 7.38 (187.5) (130.0) 7.38 (187.5) (142.8) 7.38 (187.5) (155.4) 7.38 (187.5) (180.9) 7.38 (187.5) (212.9) 7.38 (187.5) 2500 B (276.4) 7.38 (187.5) (403.4) 7.38 (187.5) (466.9) 7.38 (187.5) 5000 D (594.6) 7.38 (187.5) luminum (114.3) 7.38 (187.5) (114.3) 7.38 (187.5) (114.3) 7.38 (187.5) (142.8) 7.38 (187.5) (155.4) 7.38 (187.5) (180.9) 7.38 (187.5) (212.9) 7.38 (187.5) 1600 B 9.12 (231.6) 7.38 (187.5) 2000 B (276.4) 7.38 (187.5) (466.9) 7.38 (187.5) 3200 D (505.0) 7.38 (187.5) 4000 D (594.6) 7.38 (187.5) Joint lamp Bolts op Joint over aptive Nut Retainer Ground Plate Gasketed Moisture Barrier Plate Joint lamp Spacer Ground Path End Block orque Bolt ccess ap igure 8. Outdoor bridge joint features igure 9. Pow-R-Bridge joint Drain Plug Phasing Label Belleville Washer High Strength Glass Polyester Insulators Pow-R-Bridge Joint 1/4-20 lange Head He Bolt Bottom Joint over Joint lamp Nut Drain Plug Warning/Ground Path Label losed ell Neoprene Gasket 5

6 echnical Data D E UL low voltage busway feeder busway (igure 10 and able 3) 225 to 5000 copper 225 to 4000 aluminum Straight sections of feeder busway can be supplied in any length, at 1/8 inch (3.2 mm) increments, from a inch (406.4 mm) minimum to a 10 ft (3 m) maimum. igure 10 illustrates the configuration of feeder busway and Pow-R-Bridge for the available ampere ratings. See able 3 below for reference to the proper configuration. onfiguration op View 1 Bar Per Phase able 3. eeder busway configuration UL 857 ampere rating u l igure 10 configuration onfiguration B op View 1 Bar Per Phase B B 3200 onfiguration op View 2 Bars Per Phase D D Each section will include one, factory-installed Pow-R-Bridge mounted to the left end of the busway (with the to the top, when viewing the bus from the side). Each Pow-R-Bridge will have a label that must always match the orientation of the busway. onfiguration D op View 2 Bars Per Phase Minimum (406.4) ront View igure 10. eeder busway 6

7 UL low voltage busway plug-in busway (igure 11 and able 4 and able 5) 225 to 5000 copper 225 to 4000 aluminum Straight sections of plug-in busway are made only in inch (609.6 mm) incremental lengths with a maimum length of 10 ft (3 m). igure 11 depicts the configuration of plug-in busway and Pow-R-Bridge for the available ampere ratings. See able 4 below for reference to the proper configuration (304.8) echnical Data D E Spacing (609.6) onfiguration op View 1 Bar Per Phase (304.8) Spacing (304.8) (609.6) (304.8) able 4. onfiguration UL 857 ampere rating u l B B D D igure 10 configuration (304.8) onfiguration B op View 1 Bar Per Phase Spacing (609.6) onfiguration op View 2 Bars Per Phase Spacing (304.8) (609.6) (304.8) (304.8) able 5 below illustrates the quantity of plug-in openings per side that are available per standard section. able 5. Number of plug-in openings Dimensions in inches (mm) Number of plug-in openings Duct length ront Back (609.6) (1219.2) (1828.8) (2438.4) (3048.0) (304.8) onfiguration D op View 2 Bars Per Phase Spacing (609.6) ront View (304.8) Each section will include one, factory-installed Pow-R-Bridge mounted to the left end of the busway (with the label to the top, when viewing the bus from the side). Each Pow-R-Bridge will have a label that must always match the orientation of the busway. Plug-in outlet he plug-in outlet and cover are made from a durable, high-strength, polycarbonate material, which is rated as lass B, 130, insulation. he plug-in cover is designed to protect the contact surfaces and to prevent the entry of dirt, dust, or moisture. he cover has a positive screw close feature that prohibits the opening of the cover without the use of a tool. he cover is also Utility leadlock sealable. s a countermeasure to the effects of thermal epansion and mechanical vibration, the plug-in outlet is secured to the busway housing with high tensile strength locking hardware. igure 11. Plug-in busway over an Be Hinged on Either Side Leadlock Sealable Hinge Pins igure 12. Plug-in outlet cover High Strength Polycarbonate lass B 130º G B N ingersafe Plug-in Opening Positive Screw lose eature 7

8 echnical Data D E Electrical data able 6. Short-circuit rating UL 857 ampere rating 6-cycle rms symmetrical short-circuit rating Maimum lass L fuse needed to achieve 6-cycle rms series rating Plug-in eeder 100 k 200 k luminum ,000 85, ,000 85, ,000 85, , , , , , , , , , , , , , , , , , ,000 opper ,000 85, ,000 85, ,000 85, ,000 85, , , , , , , , , , , , , , , , , , ,000 able 7. Resistance, reactance, and impedance aluminum Milliohms per 100 ft (30.5 m) line-to-neutral aluminum plug-in and feeder busway UL 857 ampere rating Resistance R Reactance Impedance Z UL low voltage busway able 8. Resistance, reactance, and impedance copper Milliohms per 100 ft (30.5 m) line-to-neutral copper plug-in and feeder busway UL 857 ampere rating Resistance R Reactance Impedance Z able 9. Resistance values for integral housing ground (only) milliohms per 100 ft (30.5 m) UL 857 ampere rating luminum phase conductors opper phase conductors Derating table for higher ambient temperatures busway may be operated continuously at its assigned ratings without eceeding the maimum hot spot temperature rise of 55, provided the ambient temperature does not eceed 55. or higher ambient temperatures, the ratings should be reduced by applying the appropriate multiplier shown in the following table. able 10. Higher ambient temperature multipliers mbient temperature Multiplier

9 UL low voltage busway echnical Data D E Electrical data (continued) Line-to-line voltage drop he table below gives average three-phase voltage drop per 100 ft (30.5 m) at rated current and varying power factor. Line-to-neutral voltage drop is obtained by multiplying the line value by 577. able 11. Line-to-line voltage drop Percent power factor UL 857 ampere rating opper luminum NNote: Voltage drop = 3 I (R cos ø + sin ø) Volts/100 ft (30.5 m) concentrated load, where cos ø = power factor. NNote: or plug-in distributed loads, divide the voltage drop by 2. See IEEE Standard NNote: ctual voltage drop for loads less than full rated current and different lengths may be calculated by multiplying the values from able 11 by (actual/rated current) (actual length/100 ft [30.5 m]). 9

10 echnical Data D E UL low voltage busway Electrical data (continued) Housing ground vs. internal ground Eaton s busway offers a variety of grounding options. wo of which are 50% integral housing ground and 50% internal ground. he 50% internal ground option has a separate ground conductor internal to the housing, which is rated 50% of the phase conductor. he integral housing ground is where the etruded aluminum housing is used as the ground path and no internal ground conductor is provided. he housing is UL Listed as a 50% integral ground path. his type of ground path is as effective as a ground conductor as an internal ground bar. able 12 shows a cross-sectional comparison between the aluminum housing and internal ground bar. he integral housing ground provides a larger ground path that is over 100% of the cross-sectional area of the phase conductors. igure 13 illustrates the difference between the two grounding options. Integral Housing Ground Internal Ground Bar igure 13. Housing ground vs. internal ground able 12. Housing ground vs. Internal ground comparison UL 857 ampere rating u l Bar size (in) Bar per phase ross-sectional area (sq in) Internal ground Housing ground 10

11 UL low voltage busway echnical Data D E Physical data Dimensions busbar and housing able 13. hree-wire with no neutral UL 857 ampere rating u l Phase bar size (depth and width) inches (mm) Bar per phase onductor configuration and housing size (width height) inches (mm) 50% integral housing ground 3WH 50% internal ground bus 3WHG a 50% internal isolated ground 3WI ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B a 100% ground available with same dimensions, which uses 50% internal ground and 50% internal housing ground. b Refer to igure 13 on Page 12 for configuration and B. igure 14 config. b able 14. our-wire with 100% neutral UL 857 ampere rating u l Phase and neutral bar size (depth and width) inches (mm) Bar per phase onductor configuration and housing size (width height) inches (mm) 50% integral housing ground 4WH 50% internal ground bus 4WHG a 50% internal isolated ground 4WI ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B a 100% ground available with same dimensions, which uses 50% internal ground and 50% internal housing ground. b Refer to igure 14 on page 12 for configuration and B. igure 14 config. b 11

12 echnical Data D E Physical data (continued) Dimensions busbar and housing (continued) UL low voltage busway able 15. our-wire with 200% neutral UL 857 ampere rating u l Phase bar size (depth and width) inches (mm) a Bar per phase onductor configuration and housing size (width height) inches (mm) 50% integral housing ground 4WH 50% internal ground bus 4WHG b 50% internal isolated ground 4WI ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B ( ) ( ) ( ) ( ) B a Neutral bar is 0.50 (12.7) width shown. b 100% ground available with same dimensions, which uses 50% internal ground and 50% integral housing ground. c Refer to igure 14 for onfiguration and B. igure 14 config. c Width Width Height B N Height B N B N onfiguration 225 to 2000 mpere luminum 225 to 2500 mpere opper onfiguration B 2500 to 4000 mpere luminum 3200 to 5000 mpere opper igure 14. cross-section dimensions 12

13 UL low voltage busway echnical Data D E Physical data (continued) Weights able 16. Weight (pounds/ft) and current density (amperes/in 2 ) UL 857 ampere rating UL 857 urrent density amperes/in 2 Weight including integral housing ground (pounds/ft) hree-wire our-wire 100% neutral our-wire 200% neutral dd for internal ground u l u l u l u l u l u l able 17. Weight (kg/m) and current density (amperes/cm 2 ) Weight including integral housing ground (kg/m) UL 857 ampere rating UL 857 current density amperes/cm 2 hree-wire our-wire 100% neutral our-wire 200% neutral dd for internal ground u l u l u l u l u l u l

14 echnical Data D E UL low voltage busway Physical data (continued) able 18. mpere ratings needed to be at or below 1000 amperes/sq in density UL 857 ampere rating u l Bar size opper Standard density 1000 /sq in density djusted rating luminum Standard density 1000 /sq in density None None None None None None N/ N/ None djusted rating pplication note he above table is meant to help the user and specifier select the higher busway ratings to meet the performance specification of a current density value no higher than 1000 per sq inch. he current density values of our standard busway offerings based upon temperature rise are listed in the 4th and 7th columns of the table. hese ratings are UL Listed and labeled, and safe to apply. However, certain jurisdictions or applications require a better margin of safety, and choose to use a 1000 /sq inch density standard. When the lower than standard densities are required, such as 1000 /sq inch, then the only option is to oversize the busway from the standard bar sizes and ampacity ratings. Oversizing provides more busbar material in cross-sectional area, and results in lower current densities and lower temperature rises for a given value of load current. By eample, take the case of 1600 copper busway. he standard product uses a bar size of inches ( sq inch in area) and which results in 1506 sq inch density (calculated by 1600 / sq inch = 1506 /sq inches), as listed in the table. If a project or application using bus runs epected to carry 1600 of load current stipulated that the current densities eperienced by the busway should be no greater than 1000 /sq inch, then oversizing to busway bars used in the standard 2500 rating using inch bars (2.0 sq inch area) yields a current density of 1600 /2.0 sq inches. 800 /sq inches for the 1600 of load current. Why not just oversize to 2000 busway? he 2000 bar size is inches or sq inches. omputing the new density yields 1600 /1.375 sq inch = 1164 /sq inch, which is higher than the desired value of no greater density than 1000 /sq inch. herefore, the table provides a quick method of determining the ampacity of busway required to meet current density values no greater than 1000 /sq inch for given values of load current. he most important columns of data are the 1st, 7th, and 10th. Eaton warrants that the product will perform as intended regardless of the method of selection, either temperature rise only or current density. Eaton encourages specifiers who use current density as the criteria for busway selection to select and specify the busway ratings recommended in the above table under the djusted Rating column, and to not rely upon the contractors or bidders to resolve the matter in the later stages of a project. If sizing busway is strictly based upon current density, do not specify or use the standard ampacity values based upon the UL and NEM temperature rise standard on ontract Drawings. 14

15 UL low voltage busway echnical Data D E Physical data (continued) ittings Rearward Upward here is a fitting to meet every application need: flanges, elbows, offsets, tees, cable tap boes, weatherheads, transformer connections, power take-off sections, reducers, adapter cubicles, epansion joints, and end closures. hese fittings, along with standard and minimum dimensions, are described on the following pages. orward When making field measurements and layouts, it should be remembered that the dimensions are given from the centerline of the Pow-R-Bridge. Downward he relationship of fittings to straight lengths (forward, rearward, upward, and downward) is illustrated in igure 15. ll straight lengths and fittings are marked with a label and an label. he and locations will also be noted on the construction, or the as-built, Eaton drawings furnished. When installing the busway, the and markings of each section must match. ailure to do so will result in an improper installation with the phase bars out of sequence. igure 15. ypical busway components End loser Built-in Power ake-off Bolt-on Unit In-Line Power ake-off 90º Phase ransposition Upward/Downward orner Joint Offset Plug-in Unit Wall lange Plug-in Bus orward/ Rearward Elbow Protected Reducer loor lange Upward/ Downward ee ransformer orward/rearward orner Joint Outdoor Indoor enter able ap Bo orward/ Rearward ee 180º Phase ransposition Switchboard Switchboard ransformer hroat Weatherhead Epansion Joint End able ap Bo igure 16. and orientation for fittings 15

16 echnical Data D E Physical data (continued) raditional indoor and outdoor elbows (igure 17) Elbows are used to make 90 changes in the direction of busway runs. he four types that are available are forward, rearward, upward, and downward. See minimum leg lengths listed for each type in able 19 and able 20. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. igure 17. raditional elbows orner joint elbows (igure 18) he corner joint elbow can be installed in areas where a traditional 90 turn could never have been accomplished before. corner joint elbows can solve any serious pathway problem and contribute to successful layouts with minimal space requirements. he corner joint elbow is UL Listed for indoor applications only and is also certified for seismic withstand capability to worst-case, Zone 4 levels. NNote: ll dimensions are to the centerline of the corner joint connection. orward Rearward orward Upward Y L Downward Upward igure 18. orner joint elbows (for indoor applications only) Y Y Rearward L Downward Y able 19. orward and rearward elbows UL low voltage busway UL 857 ampere rating Dimensions in inches (mm) u l Minimum leg lengths (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (355.6) (368.3) (381.0) (406.4) (469.9) (495.3) (520.7) (571.5) able 20. Upward and downward elbows Dimensions in inches (mm) UL 857 ampere rating Minimum leg lengths u l Upward Downward (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (304.8) (330.2) (304.8) (330.2) (304.8) (330.2) (304.8) (330.2) able 21. orward/rearward corner joints UL 857 ampere rating Dimensions in inches (mm) u l Y (23.9) 5.38 (136.7) (23.9) 5.38 (136.7) (23.9) 5.38 (136.7) (23.9) 5.38 (136.7) (31.8) 5.69 (144.5) (38.1) 5.94 (150.9) (44.5) 6.19 (157.2) (57.2) 6.69 (169.9) (73.2) 7.31 (185.7) (82.6) 7.70 (195.6) (104.7) 8.57 (217.7) (168.7) (281.2) (200.4) (312.9) (219.7) (332.2) (264.7) (377.2) 16

17 UL low voltage busway echnical Data D E able 22. Upward/downward corner joints Dimensions in inches (mm) UL 857 ampere rating Housing ground Internal ground Isolated ground u l Y Y Y hree-wire (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) (119.6) 4.35 (110.5) 4.77 (121.2) 4.41 (112.0) 5.27 (133.9) 4.43 (112.5) our-wire (100%) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) (119.6) 5.00 (127.0) 4.77 (121.2) 5.07 (128.8) 5.28 (134.1) 5.09 (129.3) our-wire (200%) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) (126.5) 5.10 (129.5) 5.04 (128.0) 5.17 (131.3) 5.55 (141.0) 5.19 (131.8) 17

18 echnical Data D E UL low voltage busway Physical data (continued) Special angle elbows Special angle elbows are traditional elbows that allow the direction of the busway runs to change at angles greater than 90. hey allow easy routing through non-traditional corridors. he four types offered are forward, rearward, upward, and downward. See minimum leg lengths for each type listed in able 23 and able 24. able 23. orward and rearward elbows UL 857 ampere rating Dimensions in inches (mm) u l Minimum leg lengths (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (355.6) (368.3) (381.0) (406.4) (469.9) (495.3) (520.7) (571.5) orward Rearward Upward able 24. Upward and downward elbows Dimensions in inches (mm) UL 857 ampere rating Minimum leg lengths u l Upward Downward (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (254.0) (330.2) (304.8) (330.2) (304.8) (330.2) (304.8) (330.2) (304.8) (330.2) Downward igure 19. Special angle elbows 18

19 UL low voltage busway echnical Data D E Physical data (continued) Standard and flush flanges (igure 20) langes provide a direct connection to low voltage switchgear, switchboards, motor control centers, and other apparatus. utout dimensions and drilling plans are provided with the customer drawings and it is the responsibility of the switchgear manufacturer to provide the opening, flange drillings, connecting hardware, and bus risers in their equipment. or proper coordination between busway and other equipment, detailed drawings, including switchgear orientation, must accompany the order. standard flange can be supplied to the left or right of a section, as required. flush flange is used when the busway must lay close to the top of a switchboard. he edge of the busway is 1.25 inches (31.8 mm) from the top of the switchboard. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. able 25. Switchboard flanges UL 857 ampere rating u l Dimensions in inches (mm) lush flange min. leg length Standard flange min. leg length (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) (381.0) (304.8) igure 20. langes Vault flanges Vault flanges are used to enter a utility vault for termination to the utility transformer. Each vault flange is custom designed to meet each specific utility specification. Vault flanges may look similar to those shown in igure 21. Please consult the factory for specific dimensions based upon utility specifications (25.4) B N B G igure 21. Vault flanges 19

20 echnical Data D E UL low voltage busway Physical data (continued) Elbow flanges (igure 22) n elbow flange is a combination of a standard elbow and a standard flange fabricated into a single fitting. Elbow flanges are typically used when the minimum leg lengths for either the standard elbow or standard flange cannot be maintained. Minimum leg lengths are listed in able 26 and able 27. Y NNote: ll dimensions are to the centerline of the Pow-R-Bridge. able 26. orward and rearward elbow flanges UL 857 ampere rating Minimum dimensions in inches (mm) u l Joint leg lange leg Y (330.2) 8.75 (222.3) (330.2) 8.75 (222.3) (330.2) 8.75 (222.3) (330.2) 8.75 (222.3) (330.2) 8.75 (222.3) (342.9) 9.25 (235.0) (342.9) 9.25 (235.0) (355.6) 9.75 (247.7) (368.3) (260.4) (381.0) (273.1) (406.4) (298.5) (469.9) (355.6) (495.3) (387.4) (520.7) (406.4) (571.5) (450.9) orward Elbow Right lange Upward Elbow Right lange Y able 27. Upward and downward elbow flanges UL 857 ampere rating Minimum dimensions in inches (mm) Joint leg lange leg Y u l Up Down Up Down (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) Rearward Elbow Right lange Y (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (254.0) (330.2) 5.75 (146.1) 8.75 (222.3) (304.8) (330.2) 7.75 (196.9) 8.75 (222.3) (304.8) (330.2) 7.75 (196.9) 8.75 (222.3) (304.8) (330.2) 7.75 (196.9) 8.75 (222.3) (304.8) (330.2) 7.75 (196.9) 8.75 (222.3) Downward Elbow Right lange Y igure 22. Elbow flanges 20

21 UL low voltage busway echnical Data D E Physical data (continued) Offsets (igure 23) n offset is used to avoid obstacles and to conform to the building s structure. It is two elbows fabricated into a single fitting for use where space restrictions prohibit the use of two standard 90 elbows. he minimum leg lengths are listed in able 28 and able 29. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. Y Y 3.00 (Minimum) able 28. orward and rearward offsets UL 857 ampere rating u l (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (355.6) (368.3) (381.0) (406.4) (469.9) (495.3) (520.7) (571.5) Minimum dimensions Y in inches (mm) 3.00 (76.2) (Minimum) orward Y Z Downward able 29. Upward and downward offsets Minimum dimensions in inches (mm) UL 857 ampere rating Upward Downward u l Y Z Y Z (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (254.0) (330.2) (330.2) (254.0) (304.8) (330.2) (330.2) (304.8) (304.8) (330.2) (330.2) (304.8) (304.8) (330.2) (330.2) (304.8) (304.8) (330.2) (330.2) (304.8) 3.00 L (76.2) (Minimum) Y Y Rearward Y Upward Z 3.00 (76.2) (Minimum) igure 23. Offsets 21

22 echnical Data D E UL low voltage busway Physical data (continued) ombination offsets (igure 24) ombination offsets are used to conform to the building s structure and change direction, using a small amount of space. hey are two different oriented elbows fabricated into a single fitting. orward or rearward directions are determined by the and locations. Please refer to page 15. Minimum leg lengths are listed in able 30. able 30. ombination offsets UL 857 ampere rating Dimensions in inches (mm) hree-wire/ four-wire u l Y Z Z our-wire 200% N Upward/forward/rearward (254.0) (330.2) 7.00 (177.8) 7.00 (177.8) (254.0) (330.2) 7.00 (177.8) 7.00 (177.8) (254.0) (330.2) 7.00 (177.8) 7.00 (177.8) (254.0) (330.2) 7.00 (177.8) 7.00 (177.8) (254.0) (330.2) 7.00 (177.8) 7.50 (190.5) (254.0) (342.9) 7.50 (190.5) 7.50 (190.5) (254.0) (342.9) 7.50 (190.5) 8.00 (203.2) (254.0) (355.6) 8.00 (203.2) 8.50 (215.9) (254.0) (368.3) 9.00 (228.6) 9.00 (228.6) (254.0) (381.0) 9.00 (228.6) 9.50 (241.3) (254.0) (406.4) (254.0) (266.7) (304.8) (469.9) (317.5) (330.2) (304.8) (495.3) (355.6) (355.6) (304.8) (520.7) (368.3) (381.0) (304.8) (571.5) (419.1) (419.1) Downward/forward/rearward (330.2) (330.2) 7.00 (177.8) 7.00 (177.8) (330.2) (330.2) 7.00 (177.8) 7.00 (177.8) (330.2) (330.2) 7.00 (177.8) 7.00 (177.8) (330.2) (330.2) 7.00 (177.8) 7.00 (177.8) (330.2) (330.2) 7.00 (177.8) 7.50 (190.5) (330.2) (342.9) 7.50 (190.5) 7.50 (190.5) (330.2) (342.9) 7.50 (190.5) 8.00 (203.2) (330.2) (355.6) 8.00 (203.2) 8.50 (215.9) (330.2) (368.3) 9.00 (228.6) 9.00 (228.6) (330.2) (381.0) 9.00 (228.6) 9.50 (241.3) (330.2) (406.4) (254.0) (266.7) (330.2) (469.9) (317.5) (330.2) (330.2) (495.3) (355.6) (355.6) (330.2) (520.7) (368.3) (381.0) (330.2) (571.5) (419.1) (419.1) Z Y L Z L L L Z Z Y igure 24. ombination offsets 22

23 UL low voltage busway Physical data (continued) ees (igure 25) tee is a busway fitting suitable for connection in three directions. he minimum leg lengths are shown in able 31 and able 32. able 31. orward and rearward tees UL 857 ampere rating Minimum leg dimensions in inches (mm) u l Y B (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (355.6) (368.3) (381.0) (406.4) (692.2) (723.9) (743.0) (787.4) NNote: (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (355.6) (368.3) (381.0) (406.4) 8.00 (203.2) 8.00 (203.2) 8.00 (203.2) 8.00 (203.2) (670.1) (701.6) (720.9) (765.1) (492.5) (555.8) (594.6) (684.3) ll dimensions are to the centerline of the Pow-R-Bridge (536.4) (600.2) (638.0) (727.2) echnical Data D E able 32. Upward and downward tees (continued) UL 857 ampere rating Minimum leg dimensions in inches (mm) u l Y B (701.6) (606.6) (638.1) (637.4) (701.6) orward Rearward (311.2) (311.2) (311.2) (311.2) (311.2) (647.7) (647.7) (647.7) (647.7) (647.7) B Y (290.1) (416.1) (473.7) (518.4) (608.1) Y Y (558.8) (368.3) (473.7) (470.0) (558.8) able 32. Upward and downward tees Upward UL 857 ampere rating Minimum leg dimensions in inches (mm) u l Y B (539.8) (539.8) (311.2) (311.2) (647.7) (647.7) 5.00 (127.0) 5.00 (127.0) 9.25 (235.0) 9.25 (235.0) (539.8) (311.2) (647.7) 5.00 (127.0) 9.25 (235.0) (539.8) (555.8) (568.5) (311.2) (311.2) (311.2) (647.7) (647.7) (647.7) 5.00 (127.0) 5.62 (142.7) 6.12 (155.4) 9.25 (235.0) (266.7) (292.1) Downward B Y (581.2) (311.2) (647.7) 6.62 (168.1) (317.5) (606.6) (311.2) (647.7) 7.62 (193.5) (368.3) (638.1) (657.4) (311.2) (311.2) (647.7) (647.7) 8.65 (219.7) 9.65 (245.1) (431.8) (470.0) igure 25. ees 23

24 echnical Data D E UL low voltage busway Physical data (continued) rosses (igure 26) cross is a busway fitting suitable for connection in four directions. It is applied when a bus run must branch off in three directions, all in the same plane. able 33. orward and rearward crosses UL 857 ampere rating Minimum leg dimensions in inches (mm) u l Y (330.2) (330.2) (330.2) (330.2) (330.2) (330.2) (330.2) (330.2) (330.2) (330.2) (342.9) (342.9) (342.9) (342.9) (355.6) (355.6) (368.3) (368.3) (381.0) (381.0) (406.4) (406.4) (551.2) (551.2) (582.7) (582.7) (602.2) (602.2) (637.3) (637.3) orward Rearward NNote: ll dimensions are to the centerline of the Pow-R-Bridge. able 34. Upward and downward crosses UL 857 ampere rating Minimum leg dimensions in inches (mm) u l Y (539.8) (647.7) (539.8) (647.7) (539.8) (647.7) (539.8) (647.7) (555.8) (647.7) (568.5) (647.7) (581.2) (647.7) (606.6) (647.7) (638.1) (647.7) (657.4) (647.7) (701.6) (647.7) (606.6) (647.7) (638.1) (647.7) (637.4) (647.7) (701.6) (647.7) igure 26. rosses Upward Downward 24

25 UL low voltage busway echnical Data D E Physical data (continued) End cable tap bo (igure 27) End cable tap boes are used to feed a run of busway with cable and conduit or where loads served by busway are connected without the need for overcurrent protection. or indoor applications, the side, side opposite, and the end panel are removable for access to the lugs. or outdoor applications, these panels are gasketed to prevent moisture from entering. In addition, the outdoor end cable tap boes are provided with removable gasketed side access panels located on the and side opposite for more accessibility to the lugs. Removable side access panels are available on indoor cable tap boes upon request. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. Side Removable Indoor (304.8) (965.2) L Side Opposite Removable Indoor Du (381.0) (444.5) (762.0) (825.5) Gasketed ccess over on ront and Back of Bo for Outdoor ap Boes Standard igure 27. End cable tap bo a Dimension D: or mechanical lugs = inches (542.0 mm). or compression lugs = inches (493.8 mm). b 200% neutral. able 35. End cable tap bo dimension opper UL 857 ampere rating Dimension in inches (mm) b luminum UL 857 ampere rating Dimension in inches (mm) b Quantity of mechanical terminals, range one #4 (20 mm 2 ) 600 kcmil (300 mm 2 ), two 1/0 (50 mm 2 ) 250 kcmil (120 mm 2 ) a opper luminum G c P d N e G c P d N e (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (520.7) (304.8) (520.7) (520.7) (622.3) (622.3) (622.3) (774.5) (1143.0) (774.5) (774.5) (1143.0) (1143.0) a or compression lugs, factory provides provisions only. b ll dimensions shown in igure 27 remain constant regardless of system wiring configuration. c Denotes quantity of terminals per ground bus. d Denotes quantity of terminals per phase and 100% neutral bus. e Denotes quantity of terminals per 200% neutral bus option. 25

26 echnical Data D E Physical data (continued) enter cable tap bo (igure 28) enter cable tap boes are used to center feed a run of busway with cable and conduit or where loads served by the busway are connected without the need for overcurrent protection. or indoor applications, the side, side opposite, and the end panel are removable for access to the lugs. or outdoor applications, these panels are gasketed to prevent moisture from entering. In addition, the outdoor center cable tap boes are provided with removable gasketed access panels located on the front and back for more accessibility to the lugs. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. UL low voltage busway able 36. enter tap bo details dimension Dimension in inches (mm) opper (92.2) 4.75 (120.7) 6.00 (152.4) (273.1) (311.2) luminum (92.2) 4.75 (120.7) 6.00 (152.4) (273.1) (311.2) igure 28. enter cable tap bo a Dimension D: or mechanical lugs = inches (542.0 mm). or compression lugs = inches (489.0 mm). b 200% neutral. able 37. enter tap bo details dimensions and B opper UL 857 ampere rating luminum Quantity of mechanical terminals, range one #4 (20 mm 2 ) 600 kcmil (300 mm 2 ), two 1/0 (50 mm 2 ) 250 kcmil (120 mm 2 ) a Dimensions in inches (mm) UL 857 Dimensions in inches (mm) opper luminum ampere b B b rating b B b G c P d N e G c P d N e (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (419.1) (1016.0) (520.7) (1079.5) (520.7) (1079.5) (520.7) (1079.5) (520.7) (1079.5) (622.3) (1143.0) (622.3) (1143.0) (622.3) (1143.0) (774.5) (1473.2) (1143.0) (1536.7) (771.7) (1473.0) (771.7) (1473.0) (1143.0) (1536.7) (1143.0) (1536.7) a or compression lugs, factory provides provisions only. b ll dimensions shown in igure 28 remain constant regardless of system wiring configuration. c Denotes quantity of terminals per ground bus. d Denotes quantity of terminals per phase and 100% neutral bus. e Denotes quantity of terminals per 200% neutral bus option. 26

27 UL low voltage busway echnical Data D E Physical data (continued) Weatherheads (igure 29) Weatherheads are used for service entrance connections to busway. he side opposite of is removable for access to the lugs. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. able 38. Weatherhead details opper UL 857 ampere rating luminum Quantity of mechanical terminals, range one #4 (20 mm 2 ) 600 kcmil (300 mm 2 ), two 1/0 (50 mm 2 ) 250 kcmil (120 mm 2 ) a Minimum dimensions Minimum dimensions in inches (mm) in inches (mm) opper luminum UL 857 ampere rating G c P d N e G c P d N e (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (419.1) (762.0) (419.1) (762.0) (1016.0) (762.0) (762.0) (1016.0) (1016.0) a or compression lugs, factory provides provisions only. b 200% neutral. c Denotes quantity of terminals per ground bus. d Denotes quantity of terminals per phase and 100% neutral bus. e Denotes quantity of terminals per 200% neutral bus option (1041.4) (304.8) (Minimum) L of Bo of Busway (609.6) (381.0) 1.00 ompression and (25.4) Mechanical Lugs Removable Barrier igure 29. Weatherhead details a (444.5) 27

28 echnical Data D E Physical data (continued) Epansion joints (igure 30) Epansion joints accommodate the epansion and contraction of busbars with respect to the enclosure. hey compensate for the difference in the coefficient of epansion of the aluminum housing and the copper or aluminum busbars. Epansion joints must be used wherever a run of busway crosses an epansion joint of a building. hey should also be installed in the center of etremely long straight runs of busway in which the run does not change planes either horizontally or vertically. One epansion joint is required every 300 ft (91 m) for copper or one every 225 ft (68 m) for aluminum. he use of epansion joints should be engineered for individual installations. Minimum dimensions are shown in able 39. UL low voltage busway Phase transpositions (igure 31 and igure 32) Phase transposition fittings are used in applications where a phase rotation is needed due to a change in phasing from the source equipment to the load equipment. Both 90 and 180 rotations are possible. In each case, all conductors are rotated. NNote: ll dimensions are to the centerline of the Pow-R-Bridge. able 39. Epansion joints UL 857 ampere rating Dimensions in inches (mm) u l a (304.8) (304.8) (304.8) (304.8) (304.8) (304.8) (419.1) (419.1) (419.1) (419.1) (520.7) (520.7) (622.3) (622.3) (768.4) a Dimensions shown are for three-phase, three-wire and three-phase 100% neutral configurations. Please consult factory for 200% neutral sizes. igure transposition dimensions in inches (mm) (1244.6) (Minimum) (635.0) (304.8) (Minimum) igure transposition dimensions in inches (mm) of Bo (754.1) of Duct igure 30. Epansion joints 28

29 UL low voltage busway Physical data (continued) Single-phase transformer taps (igure 33) Single-phase transformer taps arrangements are used for connections to three single-phase transformers. he bus etensions do not include drilling or lugs (see igure 2 on page 2 for wiring configuration designations) (215.9) + aps (431.8) (215.9) + Pow-R- Bridge Pow-R- Bridge (215.9) + B Phase or Neutral aps (431.8) (215.9) + Pow-R- Bridge (215.9) + Phase or Neutral aps igure 33. hree single-phase transformer taps y (215.9) + y Pow-R- Bridge Phase or Neutral Ground when Required able 40. Single-phase transformer taps UL 857 ampere rating Minimum dimensions in inches (mm) u l Y a (101.6) 7.00 (177.8) (101.6) 7.00 (177.8) (101.6) 7.00 (177.8) (101.6) 7.00 (177.8) (114.3) 9.75 (247.7) (127.0) (273.1) (139.7) (298.5) (165.1) (349.3) (196.9) (412.8) (215.9) (444.5) (260.4) (539.8) (165.1) (349.3) (196.9) (412.8) (215.9) (444.5) (260.4) (539.8) a Includes ground tap. echnical Data D E hree-phase transformer taps (igure 34) hree-phase transformer taps are used when making connections to a three-phase transformer. he bus etensions do not include drilling or lugs. igure 34. hree-phase transformer taps able 41. minimum dimensions Wire designation 3W/3WH 3WG/3WHG/ 3WI 4W/4WH Inches mm able 42. B minimum dimensions Wire designation 3W/3WH 3WG/3WHG/ 3WI 4W/4WH Inches mm able 43. minimum dimensions Wire designation aps G B N (1/0) 6.00 (2/0) 7.50 (152.4) 6.00 (190.5) 6.00 (152.4) 6.00 (152.4) (152.4) 50% housing ground Inches mm B (381.1) Support Pad 4WG/4WHG/4WI/ 4WNG/4WNHG/4WNI 4WG/4WHG/4WI/ 4WNG/4WNHG/4WNI 50% integral ground and 100% ground 29

30 echnical Data D E Physical data (continued) ransformer throat connections (igure 35 and igure 36) transformer throat is used when making connections to a liquidfilled substation transformer. ll transformer throat connections include fleible connectors between the transformer low voltage spades and busbars. or transformers with drilled flanges, the busway will bolt to the transformer throat instead of using a sealing ring. ransformer ransformer hroat Sealing Ring able 44. ransformer throat connections UL 857 ampere rating luminum Bars per phase (660.4) (723.9) (800.1) opper (660.4) (723.9) (800.1) UL low voltage busway Minimum dimensions in inches (mm) LV Spades ront ront Edge of ransformer hroat L 1.75 (44.5) Plus 1/2 Duct Width LV hroat Indicate Number of Holes, Diameter of Holes, and Spacing Between Holes op of ransformer Bushing ransformer ransformer hroat Sealing Ring Side View of ransformer Edge of hroat ollar ront L hickness Edge of ransformer hroat 9.50 (241.3) ransformer ank Wall igure 36. ransformer throat connection detail LV Spade Detail Number and Diameter of Holes igure 35. ransformer throat 30

31 UL low voltage busway Physical data (continued) ransformer flange connections (igure 37 and igure 38) ransformer flange connections are used when making a connection to a dry-type substation transformer. ransformer flange connections include fleible connectors between the transformer low voltage spades and the flange busbars. Hardware is supplied to bolt the flange plate to the transformer enclosure. LL leible Braid (508.0) Protected reducers (igure 39) echnical Data D E Protected reducers are used to reduce the ampacity of busway using either a circuit breaker or a fused, non-automatic circuit breaker overprotection device. Both serve as a disconnecting means. he line side of the cubicle is connected to the higher rated busway and the load side is connected to the lower (reduced) rated busway (304.8) (Minimum) igure 39. ircuit breaker or fused reducer Pow-R-Bridge (304.8) (Minimum) B ircuit Breaker or used Reducer able 45. ircuit breaker and fused reducer dimensions igure 37. ransformer flange connections LV Spades ircuit breaker reducer Breaker amperes (463.6) (463.6) (463.6) (463.6) (463.6) (463.6) (666.8) (666.8) (666.8) usible switch reducer Inches (mm) Inches (mm) use B rating B (457.2) (457.2) (457.2) (457.2) (457.2) (457.2) (508.0) (508.0) (508.0) (863.6) (863.6) (863.6) (1073.2) (1073.2) (1073.2) (1219.2) (1219.2) (1219.2) (463.6) (463.6) (463.6) (463.6) (463.6) (463.6) (457.2) (457.2) (457.2) (457.2) (457.2) (457.2) (1073.2) (1371.6) (1524.0) (1524.0) (1524.0) (1524.0) ront View of ransformer hickness Side View of ransformer Non-protected reducers (igure 40) Non-protected reducers are used to reduce the ampacity of the busway without overcurrent devices. Per NE Section , for industrial applications, no overcurrent protection is required where the busway is reduced in size, provided the length of the smaller busway does not etend more than 50 ft (15.2 m) and has a current rating of at least one-third of the first upstream overcurrent device. ransformer ank Wall LV Spade Detail Number and Diameter of Holes igure 38. ransformer flange connection detail igure 40. Non-fused reducer 31

32 echnical Data D E Physical data (continued) Meter center power takeoffs Meter center power takeoffs (PO) are designed to tap power off the busway and feed tenant meter stacks in high-rise applications. here are two types of power takeoffs, bridge joint and in-line. Both devices are UL Listed. Bridge joint PO he bridge joint PO shown in igure 41 mounts to the right or left side of the busway at a joint between two sections of busway. he bridge joint PO comes with a main circuit breaker or main fusible switch. Bridge joint POs should be ordered with the meter stacks through the Eaton Lincoln, IL, facility. he height of the busway bridge joint must be coordinated to meet local utility/code requirements for minimum/maimum meter socket heights. ll dimensions shown are for reference only showing a typical installation. Wall In-line PO UL low voltage busway he in-line PO shown in igure 42 is built integral with the busway, having the busway pass through the device. his space-saving design reduces the horizontal wall space by up to inches (609.6 mm). With this device, there is no need to install a separate main device; saving installation time and money. his device is available with a main circuit breaker, main fusible switch, or no main device. In-line POs should be ordered with the busway through the Eaton Greenwood, S, facility. he height of the first busway joint up through the floor must be coordinated to meet local utility/code requirements for minimum/ maimum meter socket heights. he minimum distance from the surface on which the vertical hanger assembly will be installed on (finished floor or preformed curb) to the first joint is inches (406.4 mm). Meter stack may be placed to the left, right, or both sides of the main device. ll dimensions shown are for reference only showing a typical installation. NNote: If 5-high 200 meter stacks are used, it is recommended to increase the bridge joint height from inches (508.0 mm) to inches ( mm). ttention must be given to the minimum/ maimum heights of the meter sockets (311.4) 8.55 (217.2) Vertical Busway In-Line PO Wall 125 Meter Stock.50 (12.7) (343.2) (508.4).61 (15.5) (311.4) 1.93 (49.0) 8.55 (217.2) (911.9) (1778.0) (457.2) Meter enter ront (959.1) (436.1) Horizontal ross Bus Bridge Joint 200 Stack 125 Stack (320.3) (508.0) 5.81 (147.6) (763.5) (635.0) (316.2) (1710.4) (177.8) loor igure 41. Bridge joint PO (784.35) (635.0) (316.2) (508.4) (314.7) loor igure 42. In-line PO 32

33 UL low voltage busway Physical data (continued) In-line power takeoff Main circuit breaker PO he in-line main circuit breaker PO shown in igure 43 is available with trip ratings from 300 to 1200 ; using L, M, and N frame circuit breakers. his device is indoor rated and may be weatherized upon request. See able 46 for dimensions and ratings (304.8) echnical Data D E Bridge Joint Main fusible switch PO he in-line main fusible switch PO shown in igure 44 is available with 400, 600, and 800 switches; using lass fuses. his device is indoor rated only. he switch handle is mounted in front, eliminating interference with the meter sockets and the need for spacers between the main device and meter stack. It comes with a hinged door, giving easy access to the fuses mounted below the main switch. See able 46 for dimensions and ratings (50.8) (762.0) (508.0) Unprotected PO he in-line PO with no main device shown in igure 45 comes with 1200 horizontal cross bus as standard. his device is intended for use with si meter sockets or less or as local code permits. See able 46 for dimensions and ratings. able 46. In-line PO dimensions and ratings dimensions in inches (mm) Device Short-circuit rating (ki) Single bar per phase wo bar per phase Main circuit breaker LD (508.0) (838.2) HLD (508.0) (838.2) MDL (508.0) (838.2) HMDL (508.0) (838.2) ND (508.0) (838.2) HND (508.0) (838.2) Main fusible switch a (508.0) (838.2) (508.0) (838.2) (508.0) (838.2) No main device 1200 b (508.0) (838.2) a lass fuses only. b Rating of horizontal cross bus. igure 43. Main breaker 5.00 (127.0) (304.8) igure 44. Main fusible switch Bridge Joint L Bridge Joint (508.0) (762.0) (304.8) (381.0) (762.0) igure 45. Unprotected PO 33

34 echnical Data D E UL low voltage busway Physical data (continued) Busway-connected panelboards busway-connected panelboards save space and installation time by eliminating the need to install a bus plug and cable over to a panelboard. his special enclosure plugs directly on to vertical busway and accepts Eaton PRL1a, PRL2a, and PRL3a main circuit breaker panelboard interiors. he enclosure also accepts inch (711.2 mm) wide standard and EZ trims. he panels can be top or bottom fed and can mount on either side of the busway. Each panel is UL 857 Listed (60.2) op onduit Space (711.2) op View Edge of Busway to Wall 6.00 (152.4) hird Plug-In Opening Up rom Lower Joint NNote: hese panels are not seismic rated. Busway-connected panelboards are sold and shipped through the Eaton regional satellite plants and coordinated with the Eaton busway plant in Greenwood, S. See igure 46. Panelboard spring hangers he specialized spring hanger shown in igure 47 allows the panel to be anchored and supported directly to a wall, and uniquely allows the panel to float with the riser busway. Panelboard spring hangers are sold separately as a busway accessory. Hardware is included to mount the spring hangers to the panelboard enclosure. able 47. Panelboard enclosure detail Maimum bo size MB height Busway joint height Bo height off floor Minimum floor-ceiling height Dimension in inches (mm) MB frame B D PRL1a and 2a main circuit breaker (1016.0) (1828.8) (584.2) (1193.8) (2616.2) (1320.8) (1828.8) (584.2) (889.0) (2616.2) (1625.6) (1828.8) (584.2) (584.2) (2616.2) J (1930.4) (1828.8) (838.2) (533.4) (2870.2) K (500) (2387.6) (1879.6) (863.6) 4.00 (101.6) (2895.6) K (750) (2387.6) (1828.8) (914.4) 6.00 (152.4) (2946.4) PRL3a main circuit breaker (4/0) (1930.4) (1828.8) (584.2) (279.4) (2616.2) L (1930.4) (1828.8) (584.2) (279.4) (2616.2) B (1930.4) (1828.8) (584.2) (279.4) (2616.2) J (1930.4) (1828.8) (584.2) (279.4) (2616.2) K (500) (2387.6) (1879.6) (863.6) 4.00 (101.6) (2895.6) K (750) (2387.6) (1828.8) (914.4) 6.00 (152.4) (2946.4) L (2387.6) (1828.8) (863.6) 4.00 (101.6) (2895.6) LL (2387.6) (1828.8) (965.2) 8.00 (203.2) (2997.2) L (2387.6) (1828.8) (863.6) 4.00 (101.6) (2895.6) LG (2387.6) (1828.8) (914.4) 6.00 (152.4) (2946.4) B ront View igure 46. Busway-connected panelboard detail igure 47. Panelboard spring hangers 34

35 UL low voltage busway Physical data (continued) adapters (igure 48 and igure 49) complete line of adapters are available to enable the user to add to eisting old-line Westinghouse or obsolete Eaton s bus runs with the design. he specific Westinghouse product lines are Low Impedance Busway, urrent Limiting Busway, Pow-R-Way, and Pow-R-Way II. he obsolete utler-hammer designs are P2, P3, and P4 Safetybus. See able 48. he adapters allow the incorporation of present day technologies, available in plug-in units, into eisting busway systems. State-of-the-art features such as energy monitoring, transient voltage surge suppression, and coordination/ communication capabilities can all be added to eisting distribution systems without having to upgrade and to replace entire runs of busway. See able 48. Special adapters to competitive busway products are also available. Please contact the Greenwood factory for information. able 48. vailable adapters Busway types Brand echnical Data D E Minimum adapter length in inches (mm) Low impedance busway Westinghouse (1524.0) Low impedance plug-in Westinghouse (1524.0) busway Pow-R-Way busway Westinghouse/Eaton (914.4) Pow-R-Way II busway Westinghouse/Eaton (914.4) P2 Safetybus Eaton (914.4) P3 Safetybus Eaton (914.4) P4 Safetybus Eaton (914.4) ompetitive busway ontact factory (914.4) dapter POW R WY III Eisting POW R WY igure 48. to Pow-R-Way adapter dapter POW R WY III Eisting P Busway igure 49. to P adapter 35

36 echnical Data D E Physical data (continued) Wall/floor flanges (igure 50) Wall and floor flanges are used to fit around the busway and close off the opening made to allow the bus run to pass through a floor or wall. Wall and floor flanges are for cosmetic purposes only and do not provide any type of vapor or fire barrier. UL low voltage busway Busway Height Roof flange (igure 51) roof flange should always be used when outdoor busway penetrates a roof. Wall End closures (igure 52) End closures terminate a bus run and can be used to close either the right or left end (see igure 2 on page 2 for wiring conductor configurations). Wall/loor lange 2.00 (50.8) Busway Width able 49. End closures UL 857 ampere rating Dimensions in Inches (mm) u l (130.3) (130.3) (130.3) (130.3) (146.1) (158.8) (171.5) (197.4) (229.1) (248.4) (293.4) (419.6) (482.9) (521.7) (611.6) 2.00 (50.8) igure 50. Wall/floor flange Roof lange lange Bell (minimum) (260.3) 7.00 (177.8) 2.00 (Rec.) (50.8) of Joint 2.50 (63.5) (ll 4 Sides) Roof Maimum Roof Slope with Standard lange is 2.00 (50.8) per ft (304.8 mm) able 50. End closure dimensions Dimensions in inches (mm) Description B 3WH, 3WG, 3WHG, 3WI, 4WH, 4WG, 4WHG, 4WI 5.00 (127.0) 4WNH, 4WNG, 4WNI, 4WNHG 5.50 (139.7) NNote: End closure etends 0.44 inches (11.2 m) rating beyond the centerline of the removed Pow-R-Bridge. igure 51. Roof flange.44 (11.2) 6.25 (158.8) Indoor 7.38 (187.5) Outdoor B igure 52. End closure with Pow-R-Bridge removed 36

37 UL low voltage busway echnical Data D E Physical data (continued) Horizontal hangers 1 Bar Per Phase Only B One hanger is provided for every 10 ft (3 m) of horizontally mounted busway. he type of hanger supplied is determined by the specific mounting requirements of the busway. (or hook hangers and angle hangers, see igure 53 and igure 54.) Drop rods 0.50 inch (12.7 mm) diameter are not included and must be furnished by the installer. Drop rods 0.75 inch (19.1 mm) diameter are required for seismic applications. Duct Width latwise Duct Width Duct Height Edgewise igure 53. Hook hangers non-seismic only able 51. latwise hook hanger UL 857 ampere rating Dimensions in inches (mm) u l Duct width B (120.7) 5.12 (130.0) (120.7) 5.12 (130.0) (120.7) 5.12 (130.0) (120.7) 5.12 (130.0) (136.7) 5.75 (146.1) (149.4) 6.25 (158.8) (162.1) 6.75 (171.5) (187.5) 7.75 (196.9) (219.5) 9.03 (229.4) (238.8) 9.78 (248.4) (283.7) (294.1) able 52. Edgewise hook hanger onductor configuration Dimensions in inches (mm) Duct height Duct width B 3WH/4WH/3WG/3WHG/4WG/4WHG ( ) ( ) 8.40 (213.3) 4.81 (122.2) 3WI/4WI ( ) ( ) (335.0) 4.81 (122.2) 4WNH/4WNG ( ) ( ) 8.40 (213.3) 5.35 (135.9) 4WNHG/4WNI ( ) ( ) (335.0) 5.35 (135.9) able 53. latwise angle hanger UL 857 ampere rating u l onductor bars per phase Dimensions in inches (mm) Busway width (120.7) 9.00 (228.6) (120.7) 9.00 (228.6) (120.7) 9.00 (228.6) (120.7) 9.00 (228.6) (136.7) 9.63 (244.6) (149.4) (257.0) (162.1) (270.0) (187.5) (295.4) (219.5) (327.2) (238.8) (345.9) (283.7) (392.2) (410.0) (517.9) (473.5) (581.2) (512.1) (619.5) (602.0) (711.2) able 54. Edgewise angle hanger Dimensions in inches (mm) onductor configuration Duct height 3WH/4WH/3WG/3WHG/ ( ) 9.00 (228.6) 4WG/4WHG/3WI/4WI 4WNH/4WNG/4WNHG/4WNI ( ) 9.36 (237.7) NNote: ngle hangers must be used for seismic applications..7 (19 igure 54. ngle hangers latwise.75 1 Bar Per Phase Edgewise 2 Bars Per Phase.75 37

38 echnical Data D E Physical data (continued) igure 55. Sway brace Sway brace Sway brace brackets provide a provision to brace the busway run at a 45-degree angle, restricting the suspended busway from swinging. Sway braces can be ordered as part number BV1102G01 regardless of height of busway dimension. UL low voltage busway able 56. latwise vertical hangers ( and -opposite sides) UL 857 ampere rating Busway width Hangers on and opposite sides u l Inches (mm) inches (mm) (120.7) 4.62 (117.3) B (120.7) 4.62 (117.3) B (120.7) 4.62 (117.3) B (120.7) 4.62 (117.3) B (136.7) 5.25 (133.4) B (149.4) 5.75 (146.1) B (162.1) 6.25 (158.8) B (187.5) 7.25 (184.2) B (219.5) 8.50 (215.9) B (238.8) 9.25 (235.0) (283.7) (280.9) (410.0) (406.4) D (473.5) (469.9) D (512.1) (510.0) D (602.0) (600.0) D igure 57 configuration Vertical hangers (igure 56 and igure 57) When busway is to be installed vertically, a spring suspension type vertical hanger should be used. Vertical hangers are not provided unless specified. his unique hanger equalizes the weight of vertically mounted busway along all supports. vertical hanger must be used on each floor and at the end of the bus run on the last floor. he maimum span permitted by UL on vertical hangers is 16 ft (4.9 m). Intermediate hangers are required for floor heights eceeding 16 ft (4.9 m). able 55. Edgewise vertical hangers ( and -opposite sides) onductor configuration Busway Height Inches (mm) Hangers on and Opposite Sides inches (mm) 3WH/4WH 4.38 (111.3) 4.72 (119.9) 3WG/3WHG/4WG/4WHG 4.50 (114.3) 4.91 (124.7) 3WI/4WI 4.56 (115.8) 4.91 (124.7) 4WHN 4.92 (125.0) 5.25 (133.4) 4WNG/4WNHG 5.05 (128.3) 5.44 (138.2) igure 57 configuration onfiguration (1 Bar per Phase) onfiguration B (1 Bar per Phase) onfiguration (1 Bar per Phase) onfiguration D (2 Bar per Phase) Edgewise (1 Bar per Phase) latwise (1 Bar per Phase) latwise (2 Bar per Phase) igure 57. Vertical hangers igure 56. ypical installation 38

39 UL low voltage busway echnical Data D E Plug-in protective devices ll plug-in units are designed with the safety of the installer and user as the key criteria. he following features are standard for both fusible and circuit breaker type plug-in units: bus plugs have etended ground and neutral bars, which bring the termination points down into the cable entry area making for a safer, easier connection. barrier is provided over the line side connections from the bus plug stab assembly to the fusible switch or circuit breaker. he bus plug ground stab makes positive contact with the busway ground (integral or internal) before the phase or neutral stabs contact the busbars. bus plug guide port is provided in the busway housing, to the right of each plug-in outlet. polarizing alignment pin is located at the line side end of each bus plug enclosure. he alignment pin must be inserted into the guide port for proper installation. he plug-in unit and the busway are interlocked to ensure that the device is in the O position prior to installation or removal of the unit. o ensure that the bus plug is seated onto the busway, the clamping mechanism will draw the unit tight onto the busway housing as the installer tightens the clamps. Plug-in units have an interference bracket that prevents the cover from being opened while the device is in the ON position and to prevent accidental closing of the device while the cover is open. here are two locations available for field positioning of the bus plug operating handle for all circuit breaker bus plugs and fusible plugs over 400 and higher. On vertical bus run applications, the handle can be mounted on the side of the plug, and for horizontal runs, the handle can be mounted on the (line side) end of the unit. Bus plugs are shipped with the handle mounted on the end as standard. Mounting positions are illustrated in igure 60. When a plug-in unit is installed, the bus plug stab base assembly engages a seating ridge provided on the plug-in outlet. he stab base is drawn in to overlap the ridge and to form a tight seal against moisture and dust. Plug-in device mounting he load end of a plug-in unit varies with the orientation of the busway as determined by the and markings (see igure 60 below). ON O Handle Load Load O ON Handle ON O Handle ON O Handle Load Load Handle Load O ON O Guide Pin and Port Load ON ON O Load ON Handle O ON O ON Handle O Handle Load lamp and Guide DNG igure 58. Plug-in stab details igure 60. Plug-in device mounting inger-safe Barriers Ground Stab Guide Port Outlet Seating Ridge Mounting Hardware igure 59. Plug-in outlet details 39

40 echnical Data D E Plug-in device mounting (continued) Plug-in openings are spaced every inches (609.9 mm) starting inches (304.8 mm) in from the centerline of each bridge joint with a maimum of five openings per side of an individual section of busway. igure 61 and igure 62 illustrate the number of plug-in openings taken up by each style/size bus plug. UL low voltage busway Each plug-in unit uses only one plug-in opening; however, may cover up additional plug-in openings preventing use. 8.00" Min. of Opening 18.12" of Opening End of lamp 19.00" of Opening 20.75" End of lamp End of lamp 10 ft. Section Shown P3321(30 ), P3361 (30 ), P33361H (30 ), P3322 (60 ), P3362 (60 ), P3362H (60 ) P3323(100 ), P3363(100 ) and P3363H (100 ) (Occupies 1 Plug-in Opening) an't Use 12.00" 24.00" 24.00" 24.00" 24.00" P3364H (200 ) and P3365H (400 ) (Occupies 1 Plug-in Opening) P3324 (200 ) and P3364 (200 ) (Occupies 2 Plug-in Openings) 12.00" Min. of Opening 18.62" End of lamp of L Opening 16.50" End of lamp of Opening 29.75" Section Shown P3BD (Occupies 1 Plug-in Opening) 12.00" 24.00" 24.00" 24.00" 24.00" 12.00" an't Use P3BJD (Occupies 1 Plug-in Opening) P3BKD (Occupies 2 Plug-in Openings) "" P3B2D, P3BMD, P3BND and P3BLP (Occupies 2 Plug-in Openings) of Opening End of lamp 44.19" P3325 (400 ), P3365 (400 ), P33236 (600 ), P3366 (600 ), P3327 (800 ) and P3367 (800 ) (Occupies 3 Plug-in Openings) an't Use of Opening 41.31" End of lamp 37.25" End of lamp P3BLL (Occupies 2 Plug-in Openings) igure 61. usible plug-in device mounting igure 62. Breaker plug-in device mounting 40

41 UL low voltage busway SPD plug-in devices SPD Series (igure 63) he plug-in device product offering includes a surge protective device (SPD), which is ideal for busway fed distribution systems. transient voltage is a random, high energy, short duration electrical anomaly. hese high energy surges can disrupt, damage, or destroy sensitive microprocessor-based equipment. Eaton has developed the SPD family of products to ensure that quality power is supplied to commercial, industrial, medical, and institutional facilities. he SPD not only protects against eternally created impulse transients such as lightning, utility capacitor switching, and disturbances emitted by adjacent facilities, but it also provides needed protection against internal transients. his type of transient is generated within a facility s own distribution system. Sources of internally generated, or ringwave, transients are imaging, equipment, variable frequency drives, lighting dimmers, arc welders, and the switching on and off of electrical distribution equipment. It is estimated that over 80% of surge disturbances are actually caused by internal transients. he SPD also filters repetitive electrical line noise (EMI/RI), which is defined as any unwanted electrical signal that produces undesirable effects in the circuits of sensitive electronic equipment or disturbances that are two times peak voltage. he suppression of transients is accomplished through the use of metal oide varistors (MOVs) that provide a low impedance path to divert surges away from loads. Electrical line noise and ringing transients are eliminated by adding filtering capacitors to the suppression device. Not all SPD units on the market have filtering capabilities. he benefits of combining SPD and filtering are reduced MOV stress, resulting in a longer life cycle, lower let-through voltage, better noise attenuation levels, and increased reliability. Without protection devices, electronic-based loads and microprocessors are not provided with the noise- and disturbancefree power that they require. Because microprocessors are now common in those facilities, specifiers must ensure that the power supply is properly filtered. Significant performance advantages are achieved by integrating SPD filters into busway systems. echnical Data D E Because the SPD unit is directly connected to the busway it is able to minimize let-through voltage and to isolate critical loads that are fed from a protected busway run. Due to the integrated design, the SPD bus plug saves the user-needed wall space and greatly reduces the installed project cost. he SPD bus plug is furnished with a breaker disconnect. or catalog numbers and selection criteria, see able 57 below. igure 63. Surge protective device (SPD Series) bus plug able 57. SPD bus plugs catalog numbering system P3BSPD Y 2 ied do not change ied do not change Surge rating (k/phase) Voltage code 208Y = 208Y/120 V (4W + G) 400Y = 400Y/230 V (4W + G) 480Y = 480Y/277 V (4W + G) 600Y = 600Y/347 V (4W + G) 240D = 240 delta (3W + G) 480D = 480 delta (3W + G) 600D = 600 delta (4W + G) Diagnostics package 1 = Basic Dual-colored LED per phase to indicate protection status of the N G mode on units with a neutral wire, single-colored LED to indicate the lack of a neutral wire connection on systems with a neutral wire. 2 = Standard Dual-colored LED per phase to indicate protection status of the N G mode on units with a neutral wire, single-colored LED to indicate the lack of a neutral wire connection on systems with a neutral wire, audible alarm with silence button, and orm relay contact. 3 = Standard + surge counter Dual-colored LED per phase to indicate protection status of the N G mode on units with a neutral wire, single-colored LED to indicate the lack of a neutral wire connection on systems with a neutral wire, audible alarm with silence button, orm relay contact, EMI/RI filtering providing up to 50 db of noise attenuation from 10 khz to 100 MHz, and surge counter with reset button. NNote: vailable for plugs. his information is required for all quotations. his information should also be included at order entry to ensure prompt processing of the order. 41

42 echnical Data D E Plug-in devices (continued) IQ Energy Sentinel bus plugs (igure 64) he IQ Energy Sentinel is a UL Listed microprocessor-based metering module capable of communicating energy usage and demand values over the Eaton PowerNet power monitoring network. hese innovative submetering devices are designed to mount directly to Series molded-case breakers through 400 and are available for universal mounting through 250. It offers a centralized alternative to individually mounted wattmeters, watthour meters, and watt-demand meters. Key advantages include unmatched savings in space, lower installation costs, and the capability to communicate data readings in a variety of ways. IQ Energy Sentinels with built-in s and communication capability have the added benefit of overall system accuracy. he Energy Sentinel mounts on the load side of Eaton, J, and K frame breakers within the bus plug enclosure. he Energy Sentinel is also available for fusible plug-in units, which use eternal s within the plug-in enclosure. Submetering application eamples for the Energy Sentinel include energy monitoring and demand management, energy cost analysis/ allocation, and tenant or interdepartmental billing. o accomplish the communication system, the customer must provide a twisted pair communication cable in 0.50 inch (12.7 mm) conduit connecting the IQ Energy Sentinel to an Eaton entral Energy Display (ED) or a customer P to display and collect the information. he IQ Energy Sentinel offers the user full energy monitoring capability in a compact, cost-effective module ideally suited to busway application. UL low voltage busway Ground detector/neutralizer bus plug (igure 65) In rare cases, busbars in a busway system pick up static electricity. In order to discharge this potential, a neutralizer and ground detector bus plug is available. he unit has three 18,000 ohm resistors connected between the busbars and the ground. Static electricity is discharged through these resistors. neon lamp is wired in series with the busbar and part of the resistor and burns continuously. If there is a ground anywhere on the system of a lower resistance than the path through the lamp, the lamp will go out, indicating that there is a short in the system. 18,000 Ohm Resistors (3) over (utaway) Ground onnection igure 65. Ground detector/neutralizer bus plug ombination starter bus plugs (see igure 66) Ground Indicating Lamp (3) Eaton reedom and dvantage motor starters are included in the bus plug product offering. reedom motor starters offer state-of-the-art features that ensure greater value, fleibility, and performance in the toughest commercial and industrial applications. dvantage motor starters have features including a solid-state, heaterless overload relay with built-in ground fault protection. dvantage also features communication capabilities and an onboard microprocessor that controls the contactor magnet to eliminate burnout in low voltage or varying control circuit conditions. Plug-in combination starters or contactors are mounted in enclosures identical to the circuit breaker and fusible switch type bus plugs including the clamp and guides, safety interlocks, and guide pin. hey are available from size 0 through 5 with a circuit breaker, motor circuit protector, or fusible disconnect. ontact Eaton for specific application and outline dimensions. dvantage Starter igure 66. reedom/dvantage bus plug igure 64. IQ Energy Sentinel bus plug 42

43 UL low voltage busway echnical Data D E Plug-in devices (continued) Digitrip OPIM bus plugs (igure 67) Digitrip OPIM is a programmable, communicating, microprocessor-based electronic trip unit system for Eaton Series circuit breakers. OPIM is available for bus plugs on K-rame ( ), L-rame ( ), and N-rame ( ) circuit breakers. Digitrip OPIM provides an electrical distribution system with superior programmable protection, coordination, and a state-ofthe-art advanced warning capability along with system diagnostics, monitoring, and communications. Digitrip OPIM is available in two trip unit types: OPIM 550 and OPIM Unique Digitrip OPIM features can provide time current settings with more increments that permit the user to OPIMize system protection and coordination; improved accuracy to give more selectivity and closer sensitivity in providing coordination; programmable short delay and/or instantaneous curve tripping options; and selectable thermal memory, as well as selectable sure start discriminator protection features. Increased system security is provided by the addition of a programmable password protection. or improved system coordination, I 4 t long delay time slope has been added to the traditional nine LSIG curve shaping options. Short delay and ground delay zone selective interlocking have also been added, down to a 70 circuit breaker. he following dvance Warning options are also available: programmable high load phase and neutral alarm, adjustable between 50% and 100% of I r (LDPU setting), will signal an impending trip condition igure 67. OPIM bus plug n adjustable ground fault alarm that will alert the user of a ground fault condition without the breaker Energy alarming can be performed (such as peak demand eceeded) to reduce energy costs with OPIM 1050 via PowerNet otal Harmonic Distortion (HD) alarming detects changes in power quality with OPIM 1050 via PowerNet Digitrip OPIM provides a complete selection of system diagnostic capabilities including four cause-of-trip LEDs mounted on the front of the trip unit to improve troubleshooting capabilities. hey are complemented by trip event information that is stored in memory after a trip condition. Remote breaker status indication is provided by auiliary and alarm switches. he Breaker Interface Module (BIM) provides trip indication information on the front of the unit or via relay contacts to a remote location. Digitrip OPIM has an etensive menu of monitoring capabilities including load monitoring, power factor (OPIM 1050), power and energy (OPIM 1050) power quality-current harmonics. OPIM trip units are PowerNet compatible and can be included in the unique Eaton tripping PowerNet communications system. ontact Eaton for specific applications and outline dimensions. Handle L Plug-In Opening igure 68. Bus plugs O ON L D E B L Plug-in Opening and B able 58. OPIM breaker plug-in unit dimensions OPIM breaker frame Maimum amperes Maimum Vac K-rame (873.8) L-rame (1064.3) N-rame (1165.6) Dimensions in inches (mm) B D E (490.2) (620.8) (753.1) (291.1) (291.1) (291.1) (315.5) (351.8) (443.5) 3.77 (95.8) 3.77 (95.8) 3.77 (95.8) 7.86 (199.6) 9.57 (243.1) 9.66 (345.4) Mechanical terminal Wire range per phase 350 (1) kcmil 400 (2) 3/0 250 kcmil 400 (1) 4/0 600 kcmil 400 (2) kcmil 700 (2) kcmil 800 (3) 3/0 400 kcmil ppro. weight lb (kg) 59 (26.8) 78 (35.4) 141 (64.0) 43

44 DNGER DNGER echnical Data D E UL low voltage busway Power takeoff sections Power takeoff sections are used to tap up to 1200 of power off of the busway. power takeoff section must be used when power in ecess of the current-carrying capabilities of the plug-in stabs (800 ) is required. bolt-on fusible switch or circuit breaker unit can then be bolted to the power takeoff (176.3) 9.00 (228.6) (431.8) (Minimum) P..O. Pow-R-Bridge 6.94 (176.3) 9.00 (228.6) Pow-R-Bridge (431.8) (Minimum) P..O. Bridge joint power takeoff (igure 69) bridge joint power takeoff is a special connection that allows for the attachment of a bolt-on unit at the bridge joint. he bridge joint power takeoff and a bolt-on unit can be used to tap off power where plug-in busway is not available. bridge joint power takeoff can be rated up to (381.0) Edgewise Mounted Single Bar Per Phase Only (381.0) latwise Mounted vailable in Single and Double Bars Per Phase P..O. Line Load igure 70. Built-in power takeoff Plug-in cable tap boes (igure 71) Plug-in cable tap boes are used to feed the busway run, or where equipment served by the busway is connected without overcurrent protection. Plug-in cable tap boes plug into any busway ( ) plug in opening. Bolt-on ircuit Breaker Unit or usible Switch Pow-R-Bridge igure 69. Bridge power takeoff B Built-in power takeoff (igure 70) built-in power takeoff is a special piece of feeder busway that allows for the attachment of a bolt-on unit. Built-in power takeoffs are used where space restrictions dictate that the wide dimensions of the busway be flat against the wall, ceiling, or other obstruction. In this application, power takeoffs and bolt-on units are used instead of plug-in units. built-in power takeoff can be rated up to op View D Side View igure 71. Plug-in cable tap bo able 59. Plug-In cable tap bo details mpere rating Dimensions in inches (mm) ompression conn./ Phase and N Mechanical lugs/phase and N B D English Metric English Metric atalog number (495.3) (393.7) 7.12 (180.8) 7.50 (190.5) (1) (1) P3PB (495.3) (393.7) 7.12 (180.8) 7.50 (190.5) (1) #4 350 kcmil (1) mm 2 P3PB200M (666.7) (533.4) (254.0) 7.50 (190.5) (1) (1) P3PB (666.7) (533.4) (254.0) 7.50 (190.5) (1) kcmil or (2) 3/0 250 kcmil (1) mm 2 or P3PB400M (2) mm (762.0) (628.6) (266.7) (325.1) (2) (2) P3PB (762.0) (628.6) (266.7) (325.1) (2) kcmil or (4) 3/0 250 kcmil (1) mm 2 or P3PB600M (4) mm (762.0) (628.6) (266.7) (325.1) (3) (3) P3PB (762.0) (628.6) (266.7) (325.1) (3) kcmil or (6) 3/0 250 kcmil (3) mm 2 or P3PB800M (6) mm 2 44

45 UL low voltage busway echnical Data D E Receptacle plug-in units Eaton s unique receptacle plug-in unit design makes them the most fleible receptacle units in the industry. receptacle plug-in units come fully assembled and wired, reducing installation time, and are built to order. hey are S and UL 857 Listed and come in five different configurations. Single receptacle unit he single receptacle plug-in unit, shown in igure 72, is configured to order and uses ype H single-pole or two-pole plug-in circuit breakers. One receptacle comes with each unit that can be straight blade or twist-lock, rated from 15 to 50. Each receptacle can also be fied mounted to the front of the enclosure or cord mounted from the bottom of the enclosure (not as shown). ord lengths are 1 15 ft in 1-ft increments. onsult NE Sections 368, 400, and 645 for cord drop applications. Quad receptacle unit he quad receptacle plug-in unit, shown in igure 73, is configured to order and uses ype H single-pole, two-pole, and three-pole plug-in circuit breakers. Each unit comes with 2 4 NEM configured receptacles in any combination of straight blade and twist-lock and three-wire, four-wire, and five-wire, rated Each receptacle can be fied mounted to the front of the enclosure or cord mounted from the bottom of the enclosure (not as shown). ord lengths are 1 15 ft in 1-ft increments. onsult NE Sections 368, 400, and 645 for cord drop applications. igure 72. Single receptacle plug igure 73. Quad receptacle plug 45

46 echnical Data D E Plug-in device electrical data able 60. ircuit breakers 100% rated breakers are not available for use in bus plugs. ontact product line for guidance. Interrupting rating (k symmetrical) mpere rating 240 Vac 480 Vac 600 Vac Breaker type EHD EHD DB DB DB D D D D HD HD HD HD D D D L ED EDH ED JD, JDB JD, JDB HJD HJD JD JD LL DK KD, KDB HKD KD LL LD, LDB HLD LD MDL HMDL ND HND ND ND HND ND UL low voltage busway able 61. Integrally fused, current limiting circuit breaker Interrupting rating (k symmetrical) mpere rating 240 Vac 480 Vac 600 Vac Breaker type B-P L-P L-P NB-P NB-P able 62. Breaker unit catalog numbering system Bus style P3B = PRWIII IBP = PRW BP = Old line Breaker frame (E. D, JD, KDB) igure 74. ypical circuit breaker plug-in unit NNote: Please call Greenwood Low Voltage Busway department for help in assigning a catalog number for a specific application. NNote: Do not leave spaces between characters. Eample: P3BD3225N; IBPKD3400N. NNote: hree-pole only Busway Interlock Line Side Barrier Guide Pin P3B HD G N rip rating (E. 015, 060, 150, 400) Operating Handle ll plug-in units come fully assembled. Neutral option N = 100% neutral N2 = 200% neutral (PRWIII only) ZN = Low Z (old line only) Ground option G = 50% internal I = Isolated ground (PRWIII only) Neutral Bar and erminal Ground Bar and erminal 46

47 UL low voltage busway Plug-in device electrical data (continued) able 63. usible switch horsepower and short-circuit rating (based on fuse class) mpere rating NE standard Maimum Maimum symmetrical rms at fuse class 240 V k R k R k R k R k R k R k L 480 V k R k R k R k R k R k J k L 600 V k R k R k R k R k J k J k L echnical Data D E able 64. usible unit catalog numbering system Bus style P3 = PRWIII IP = PRW P = Old line hree-pole only P R G N H Voltage 6 = 600 V 2 = 240 V NNote: Mounting option prefi used on 30, 60, 100, and 200 plug-in units only. Operating Handle mperes 1 = 30 2 = 60 3 = = = = = 800 use clips H, J, or R 600 or L for 800 Busway Interlock Mounting options for P3 ( only) H = Horizontal V = Vertical Neutral options N = 100% N2 = 200% (PRWIII only) ZN = Low Z (old line only) Ground option G = 50% I = Isolated (PRWIII only) Neutral Bar & erminal Guide Pin Ground Bar & erminal igure 77. ypical fusible plug-in unit igure 75. Vertically mounted plug N Note: H clips are standard for IP and P unless specified by adding R in catalog number. R clips are standard for P3. NNote: Please call Greenwood Low Voltage Busway department for help in assigning a catalog number for a specific application. NNote: Do not leave spaces between characters. Eample: P3362RNV; IP361N. NNote: ll plug-in units come fully assembled. igure 76. Horizontally mounted plug 47

48 echnical Data D E Plug-in device physical data UL low voltage busway B D E igure 78. Bus plugs able 65. Standard plug-in units Dimensions in inches (mm) Mechanical terminal ppro. Maimum Maimum weight Plug-in unit amperes Vac B D E Wire range per phase (mm 2 ) lb (kg) ircuit breaker plug-in units P3BD (E- and (538.5) (369.8) 5.43 (138.0) 4.00 (101.6) 6.06 (153.9) 6.06 (153.9) 100 (1) #14 1/0 (2.5 50) -rame breakers) 150 (1) #4 4/0 (25 95) 25 (11.3) P3BJD (J-rame (590.8) (369.8) 6.97 (177.0) 4.00 (101.6) 6.06 (153.9) 6.06 (153.9) 250 (1) # kcmil (25 185) breakers) 225 (1) kcmil (35 185) 47 (21.3) P3BKD (K-rame (874.0) (392.4) 7.79 (197.9) 4.00 (101.6) 6.64 (168.7) 6.37 (161.8) 350 (1) kcmil ( ) breakers) 400 (2) 3/0 250 kcmil (45 120) 53 (24.0) P3BLD (L-rame (1064.5) (533.7) (257.8) 4.00 (101.6) 9.62 (244.3) 9.96 (253.0) 400 (1) 4/0 600 kcmil ( ) breakers) 600 (2) kcmil ( ) 75 (34.0) P3BMDL (MDL (1165.6) (533.7) (257.8) 4.00 (101.6) 9.62 (244.3) 9.96 (253.0) 600 (2) #1 500 kcmil (50 240) rame breakers) 800 (2) kcmil ( ) 136 (61.7) P3BND (N-ame (1167.9) (533.7) (257.8) 4.00 (101.6) 9.62 (244.3) 9.96 (253.0) 700 (2) # kcmil (50 240) breakers) 800 (3) 3/0 400 kcmil (95 185) 138 (62.6) P3BLP (RI-P) (1165.6) (533.7) (257.8) 4.00 (101.6) 9.62 (244.3) 9.96 (253.0) 225 (1) #6 350 kcmil (16 185) 400 (1) #4 250 kcmil and (1) 96 (43.5) 3/0 600 kcmil ( and ) P3BLL (1063.2) (499.1) (257.8) 4.00 (101.6) (350.5) 9.83 (249.7) (1) #4 250 kcmil (25 120) and 88 (39.9) (1) 3/0 600 kcmil (95 300) usible plug-in units a P3321RGH (373.9) (353.7) 8.46 (214.8) 3.85 (97.7) 7.95 (202.0) 5.66 (143.7) u (1) #14 #3 (2.5 35) 32 (14.5) P3321RGV (402.5) (356.3) 8.46 (214.8) 3.85 (97.7) 6.72 (170.6) 5.66 (143.7) l (1) #12 #2 (3.2 35) P3361RGH (373.9) (353.7) 8.46 (214.8) 3.85 (97.7) 7.95 (202.0) 5.66 (143.7) u (1) #14 #3 (2.5 35) P3361RGV (402.5) (356.3) 8.46 (214.8) 3.85 (97.7) 6.72 (170.6) 5.66 (143.7) l (1) #12 #2 (3.2 35) P3322RGH (377.9) (455.3) 8.37 (212.5) 3.85 (97.7) (303.6) 5.66 (143.7) u (1) #14 #3 (2.5 35) 40 (18.1) P3322RGV (504.1) (359.6) 8.37 (212.5) 3.85 (97.7) 6.84 (173.8) 5.66 (143.7) l (1) #12 #2 (3.2 35) P3362RGH (377.9) (455.3) 8.37 (212.5) 3.85 (97.7) (303.6) 5.66 (143.7) u (1) #14 1/0 (2.5 50) P3362RGV (504.1) (359.6) 8.37 (212.5) 3.85 (97.7) 6.84 (173.8) 5.66 (143.7) l (1) #12 1/0 (3.2 50) P3323RGH (377.9) (455.3) 8.37 (212.5) 3.85 (97.7) (303.6) 5.66 (143.7) u (1) #14 1/0 (2.5 50) 40 (18.1) P3323RGV (504.1) (359.6) 8.37 (212.5) 3.85 (97.7) 6.84 (173.8) 5.66 (143.7) l (1) #12 1/0 (3.2 50) P3363RGH (377.9) (455.3) 8.37 (212.5) 3.85 (97.7) (303.6) 5.66 (143.7) u (1) #4 250 kcmil (25 120) P3363RGV (504.1) (359.6) 8.37 (212.5) 3.85 (97.7) 6.84 (173.8) 5.66 (143.7) l (1) #4 250 kcmil (25 120) P3324RGH (442.5) (558.3) 8.52 (216.3) 3.85 (97.7) (392.1) 6.80 (172.8) u (1) #4 250 kcmil (25 120) 56 (25.4) P3324RGV (604.5) (422.8) 8.52 (216.3) 3.85 (97.7) 8.26 (209.8) 6.80 (172.8) l (1) #4 250 kcmil (25 120) P3364RGH (442.5) (558.3) 8.52 (216.3) 3.85 (97.7) (392.1) 6.80 (172.8) u (1) #4 600 kcmil (25 300) P3364RGV (604.5) (422.8) 8.52 (216.3) 3.85 (97.7) 8.26 (209.8) 6.80 (172.8) l (1) #4 600 kcmil (25 300) P3325R (1242.1) (539.0) (255.8) 4.00 (101.6) (271.5) (271.5) u/l (1) kcmil ( ) 77 (34.9) P3365R (1242.1) (539.0) (255.8) 4.00 (101.6) (271.5) (271.5) u/l (1) kcmil ( ) 77 (34.9) P3365HR (599.2) (539.0) (533.4) 4.00 (101.6) (271.5) (271.5) u/l (2) 3/0 250 kcmil (85 127) 81 (36.7) P3326R (1242.1) (668.3) (270.0) 4.00 (101.6) (334.3) (334.3) u/l (2) #2 600 kcmil (35 300) 82 (37.1) P3366R 600 u/l (3) #2 600 kcmil (25 300) P3327R (1242.1) (668.3) (270.0) 4.00 (101.6) (334.3) (334.3) u/l (3) #2 600 kcmil (25 300) 108 (49.0) P3367R 600 a lternative fuse options are available. Enclosure dimensions are not affected by fuse type. 48

49 UL low voltage busway echnical Data D E onstruction drawing 0.45 (11.4) Indoor/Outdoor 1600 mpere, 3-Phase opper, 227/480 Volts 4-Wire, Housing Ground, 100% Neutral (2830.6) (2438.4) (762.0) 4.38 (111.3) G B N Plug-In Unit (152.4) (3810.0) (3048.0) (762.0) 7.38 (187.5) ( ) opper/phase ( ) opper/neutral Duct Weight = 21 Lbs/t olor = NSI 61 Gray W (635.0) (431.8) (1219.2) 01 Outdoor Duct (1117.6) / (304.8) (914.4) Indoor Duct (990.6) W ll loors (609.6) 2 of (651.0) (1320.0) (381.1) (3048.0) (152.4) (152.4) (6096.0) (3810.0) (381.0) (762.0) (457.2) (762.0) 8.00 (203.2) (889.0) (736.6) (7442.2) Indoor/Outdoor 3200 mpere, 3-Phase opper, 227/480 Volts 4-Wire, Housing Ground, 100% Neutral G 4.38 (111.3) B N (409.9) ( ) opper/phase ( ) opper/neutral Duct Weight = 42 Lbs/t olor = NSI 61 Gray Same Elevation See Drawing BV1004 Line 15 See Drawing BV1012 Line 5 Style No. Item Description or S.O. No. Req. 01 MR hroat LVB01234 U Elbow LVB Wall lange BV0299G Elbow lange LVB Hanger BVD0301G lange Elbow LVB Elbow LVB Inches (736.6 mm) Length LVB ft (36.6 m) Length LVB Style No. Item Description or S.O. No. Req. 10 Elbow LVB loor lange BVD0299G Inches (726.0 mm) Length LVB ft (36.6 m) Length LVB ft (29.3 m) Length LVB End loser BVD0156G Hanger BVD0300G Hanger BVD0300G15 4 igure 79. Sample installation drawing fter the approval process and prior to shipment of the busway from the factory, the installer will receive a set of construction drawings. sample is illustrated in igure 79 above. he drawings will contain a complete layout of the entire installation and a bill of material that includes: 1. he item number of each section that can be correlated with the drawing. 2. description of each section. 3. he style number or shop order number of each section. 4. he quantity of each section or style number required. 5. he height, width, and weight (per ft) of each ampere rating. 6. Location of the and markings on the busway. 7. lange reference drawings. 8. Switchgear locations and orientation. 9. Wall and floor locations. 10. he length of each section. 11. he location of any sections that have been designated as ield it pieces (see page 51). he installer should review this drawing prior to and during the installation process. Please note that plug-in units are generally not shown on a construction drawing. he installer will also receive installation instruction leaflets, and operation and maintenance manuals with the drawings. 49

50 echnical Data D E UL low voltage busway Installation data Hoisting and positioning busway is manufactured with two sets of lifting eyes at the ends of each piece to facilitate the hoisting and positioning of the busway during installation. Refer to igure 80 for location of lifting eyes. Incorrect Joint ssembly: No Pow-R-Bridge Incorrect Joint ssembly: and Labels Misaligned orrect Joint ssembly igure 81. Bridge joint installation igure 80. Hoisting riser and horizontal busway Busway joint assembly When connecting sections of busway, the following guidelines must be followed: 1. arefully read NEM publication BUI.1 provided with the busway before installing equipment. 2. ontact surfaces must be kept clean and free of all contaminants. 3. lign the (factory installed) Pow-R-Bridge end of the piece being positioned with the non-bridge joint end of the adjacent section. onfirm that the and labels of both sections are in the same plane. ailure to do so will result in an improper installation with the phase bars of the connected sections out of sequence. hen, slide the two sections together until the busbars of the non-bridge section contact the stopping lances of the bridge joint conductor bars of the section being positioned. igure 81 illustrates eamples of incorrect and correct connections. Obviously, the installation is incorrect if the bridge joint is missing, but the busway will also be improperly installed if the label of the bridge joint is not in the same plane as the label of the busway. orque indicating bolt (igure 82) he torque indicating bolt is a double-headed bolt designed to ensure that proper installation torque is achieved. all-away instruction labels are provided between the upper and lower bolt heads. standard wrench with a (minimum) inch (355.6 mm) handle should be used to complete the joint installation. orque should be applied to the upper head only and as when the proper value is achieved. his bolt head will shear off allowing the tag to fall to the floor. ny joint that is improperly torqued will retain the highly visible tag and should be retightened. he lower bolt head remains intact for future maintenance and a label is provided on the bridge joint with the proper torque requirements. orque Indicating Bolt as Shipped Yellow Instruction Label or initial installation, tighten until outer head shears off. Use a 14-inch (355.6 mm) or longer wrench. orque Indicating Bolt fter Installation igure 82. orque indicating bolt NNote: or maintenance or relocation torque from 55 to 65 ft lb using a torque wrench. 50

51 UL low voltage busway inal field fit program field fit section of busway is typically an elbow or a short length of feeder that is intentionally left out of a run for later shipment. It is most often a mutually agreed upon section between the customer and the plant. he purpose of the program is to effectively manage the dimensional uncertainties that may be involved in a busway layout. he eample shown in igure 83 identifies the field fit piece as item 01, a straight length. Upon release of the order, this item is kept on hold for field measurement. he contractor installs the busway (Items 01 through 04) and is then able to obtain an eact dimension for the final field fit piece, Item 01. he measurement should be made from the edge of the housing of 01 to the edge of the housing 02. echnical Data D E he contractor can fa the dimensions directly to the factory on the inal ield it a Release form (see page 52), which is packed with the original shipment. he field fit section will ship within 5 to 10 working days from the receipt of the release fa. Offset fittings or more than four field fits released at the same time will ship within 15 working days. his program has been successful for many years and it provides the assurance of an eact fit the first time. It allows for busway runs to be released when certain dimensions are not yet determined. It also eliminates the costly delays that can occur when sections have to be remade and shipped due to last-minute job site changes. In turn, this allows for installations to begin early and projects can be completed on time. he inal ield it a Release form is customized to each order and is shipped to the job site with the busway. he field fit items shown on the form will match the items shown on the as-built drawings provided. he sheet is faed from the job site directly to the product engineer at the factory. ield Measure Dimension (609.6) (914.4) (914.4) Hold 01 for inal it. ustomer to urnish Dimensions (914.4) (609.6) (609.6) Switchgear #1 ront 01 ustomer aes Dimension for 01 inal it Piece Shipped within 5 to 10 Working Days (Elbow or eeder Length) igure 83. inal field fit program 51

52 echnical Data D E UL low voltage busway G.O.#: Item #: inal ield it Program Item Release! Directly to Greenwood busway factory Ref. Drawing: Phone #: ddress: ustomer to provide dimensions indicated by letters on field fit section of busway. In order to help epedite your release please include the GO# and Item# listed above on this sheet in the subject line of your message. "" Dimension = (see chart for min.) "B" Dimension = (see chart for min.) Minimum Dimensions mp Rating Hsg. to Hsg. U. L. (in.) Name: ompany: Phone#: Date: Lead times shown below are in working days from receipt of complete information. he number of pieces is calculated by adding all field fit pieces being released to be made at the same time together. his is not necessarily a number of like pieces. or eample 3 elbows and 4 straight sections would equal 7 total pieces. he lead time for each item in this case would be found under the 6-10 piece column. *Denotes number of pieces per project not per run, and could be included on multiple order numbers. Revised 4/14 igure 84. Release form 52

53 UL low voltage busway Specifications Part 1 General 1.01 Scope. he contractor shall furnish and install the busway system including all necessary fittings, hangers, and accessories as specified herein and as shown on the contract drawings Related sections 1.03 References. he low voltage busway and all components shall be designed, manufactured, and tested in accordance with the latest applicable standards of NSI, S, NEM, and IE: 1. NEM BU NSI/UL S 22.2 No IE and Submittals for review/approval. he following information shall be submitted to the engineer: 1. Master drawing inde. 2. Isometric drawing of each busway run. 3. Busway ratings including: a. Short-circuit rating b. Voltage c. ontinuous current 4. Major component ratings including: a. Voltage b. ontinuous current c. Interrupting ratings 5. able terminal sizes Submittals for information. When requested by the Engineer, the following product information shall be submitted: 1. Descriptive bulletins. 2. Product sheets Submittals for close-out. he following information shall be submitted for record purposes: 1. inal as-built drawings and information for items listed in Section Installation information. 3. Seismic certification and equipment anchorage details Qualifications. ll components shall be of the same manufacturer as the busway. B. or the equipment specified herein, the manufacturer shall be ISO 9000, 9001, or 9002 certified.. he manufacturer of this equipment shall have produced similar electrical equipment for a period of 10 years. When requested by the Engineer, an acceptable list of installations with similar equipment shall be provided demonstrating compliance with this requirement. echnical Data D E D. he busway and related accessories shall be suitable for and certified to meet all applicable seismic requirements of the Uniform Building ode and the alifornia Building ode for Zone 4 application Delivery, storage, and handling. Equipment shall be handled and stored in accordance with the manufacturer s instructions. One copy of these instructions shall be included with the equipment at time of shipment Operation and maintenance manuals. en copies of the equipment operation and maintenance manuals shall be provided. B. Operation and maintenance manuals shall include the following information: 1. Instruction books or leaflets. 2. Recommended renewal parts list. 3. Drawings and information required by Section Part 2 Products 2.01 Manufacturers. Eaton 2.02 Ratings. he busway shall be Eaton type and shall be: 1. hree-phase, three-wire with 50% integral housing ground. 2. hree-phase, three-wire with 50% internal ground or 50% isolated, internal ground. 3. hree-phase, three-wire with 100% ground. 4. hree-phase, four-wire with 100% neutral. 5. hree-phase, four-wire with 50% integral housing ground and 100% neutral. 6. hree-phase, four-wire with 50% internal ground or 50% isolated, internal ground and 100% neutral. 7. hree-phase, four-wire with 100% ground and 100% neutral. 8. hree-phase, four-wire with 200% neutral. 9. hree-phase, four-wire with 50% integral housing ground and 200% neutral. 10. hree-phase, four-wire with 50% internal ground or 50% isolated, internal ground and 200% neutral. 11. hree-phase, four-wire with 100% ground and 200% neutral as indicated on the ontract Drawings onstruction he busway and associated fittings shall consist of copper (or) aluminum conductors totally enclosed in a two-piece etruded aluminum housing. Outdoor feeder, indoor feeder, and indoor plug-in shall be interchangeable at the same rating without the use of special adapters or splice plates. Where indicated on the contract drawings, provide indoor, sprinkler-proof, plug-in busway. ittings shall be identical for use with both the plug-in and feeder types of busway. he busway shall be capable of being mounted in the flatwise, edgewise, or vertical positions without derating. he busway shall consist of standard 10 ft (3 m) sections with special sections and fittings manufactured to suit the installation. Horizontal runs shall be suitable for hanging on 10 ft (3 m) maimum centers. Vertical runs shall be suitable for mounting on 16 ft (5 m) maimum centers. Provide one hanger for every 10 ft (3 m) of horizontally mounted busway. On vertical runs, provide one spring, suspension type hanger per floor and at the end of the bus run on the last floor. 53

54 echnical Data D E UL low voltage busway 2.04 onductor busbars. Busbars shall be fabricated from high strength, 57% conductivity aluminum or 99% conductivity copper and shall be suitably silver- (or) tin-plated at all electrical contact surfaces. B. Busbars shall be insulated over their entire length, ecept at joint and contact surfaces, with lass B, 130, epoy insulation applied by the fluidized bed process. he epoy insulation shall etend fully to the joint contact surface.. he busway shall be capable of carrying rated current continuously without eceeding a temperature rise of 55 based on a 40 ambient Bus joints. Each busway section shall be furnished complete with joint hardware and covers. he busway joints shall be a single-bolt, non-rotating, removable bridge design. ll bridge joints shall be furnished with [standard torque-indicating double head joint bolts and Belleville washers. he bridge joint shall utilize a captive nut retainer on the opposite side of the torque-indicating bolt. he bridge joint design shall ensure proper installation without the use of a torque wrench, and provide visual indication that the joint has been tightened to the proper torque value]. OR [an optional tension indicating SmartBolt and Belleville washer. he bridge joint shall utilize a captive nut retainer on the opposite side of the tension-indicating bolt. he bridge joint design shall ensure proper installation without the use of a torque wrench, and provide visual indication through a color changing window on the bolt head that the joint has been tightened to the proper internal tension value.] Each indoor busway joint shall allow for a minimum length adjustment of ±0.5 inches (12.7 mm). De-energization of busway shall not be required for safe testing of joint tightness. he bridge joint shall be the Eaton Pow-R-Bridge Housing. he busway housing shall be an all-aluminum construction. he housing shall be manufactured as a two-piece design only, and shall be fabricated from etruded aluminum. he two-piece housing shall be bolted along the bottom flange only, using Grade 5, 1/4 20 zinc-plated hardware on 3.00 inch (76.2 mm) centers for maimum mechanical strength. he busway enclosure finish shall be NSI 61 gray baked epoy powder paint applied by an electrostatic process. B. Outdoor feeder busway housing shall be identical to indoor feeder busway housings, and shall be UL listed for outdoor use. Busway shall be completely weatherized at the factory, and designed with a two-piece metal joint cover so that no caulking is required by the installer to achieve an IP66 rating suitable for outdoor use.. he busway shall have a minimum short-circuit withstand rating of 85 k rms symmetrical for ampere ratings through 800, 100 k rms symmetrical through 1350, 125 k rms symmetrical through 1600, 150 k rms symmetrical through 2500, and 200 k rms symmetrical for ratings through Plug-in busway. Where required, busway shall be of the plug-in type. Plug-in busway shall be available in standard inch (609.6 mm) incremental lengths not to eceed a maimum length of 10 ft (3 m). Plug-in outlets shall be provided on both sides of the busway on inch (609.6 mm) centerlines. he design shall allow for 10 cover outlets per 10 ft (3 m) section. overs for plugin openings shall have a positive screw close feature and shall require the use of a tool to open. Plug-in outlet covers shall prohibit dirt and debris from entering the plug-in contact openings in the busway and shall have provisions for the installation of power company seals. B. he plug-in contact surfaces of the busbars shall be constructed of conductor tabs, welded to the side edges of the bars. he tabs shall be of the same (full) thickness, rating, and material as the busbars. he contact surfaces shall receive the same plating process as the joint contact surfaces.. Plug-in and feeder busway of the same ampere rating shall have identical short-circuit withstand ratings. D. Positive mechanical guides for plug-in units shall be provided at each plug-in outlet to facilitate unit alignment and to prevent improper installation. E. he plug-in busway shall maintain the same sandwich bus design as the feeder busway. Plug-in busway with busbars that are separated or flared at the plug-in opening shall be unacceptable.. Plug-in outlets shall be furnished with barriers across the plugin openings to prevent accidental contact with a live part by an operator or installer. G. Where required, indoor sprinkler-proof plug-in busway shall be provided with housing identical to the standard plug-in bus. Sprinkler-proof busway shall carry an ingress protection rating of IP55 with the plug-in openings closed. H. Where required, plug-in units of the types and ratings indicated on the contract drawings shall be supplied. Plug-in units shall be mechanically interlocked with the busway housing to prevent their installation or removal while the switch is in the ON position. he ground stab of any plug-in unit shall make a positive connection with a busway ground (housing or internal) contact, inside the plug-in outlet, before the phase and neutral stabs make contact with the contact surfaces of the busbars. ll plugin units shall be equipped with a defeatable interlock to prevent the cover from being opened while the switch is in the ON position and to prevent the accidental closing of the switch while the cover is open. he operating mechanism and handle shall remain in control of the disconnect device at all times, permitting easy operation from the floor by means of a hookstick or chain. or safety reasons, no projections shall etend into the busway housing other than the plug-in stabs. ll plug-in units shall be interchangeable without alteration or modification to the busway. I. usible-type bus-plugs shall have a quick-make, quick-break disconnect switch and positive pressure fuse clips. J. ircuit breaker type bus plugs shall have an interrupting rating as indicated on the contract drawings and shall meet all the requirements of UL Standard 489. It shall be possible to increase the interrupting rating of a breaker plug-in device having ampere ratings through 400 up to 100 ki at 480 Vac and 200 ki at 240 Vac by changing out the circuit breaker only and leaving the enclosure intact. ll circuit breaker plug-in devices shall be Eaton type Series. 54

55 UL low voltage busway echnical Data D E K. urrent limiting circuit breaker type plug-in devices shall be units that provide integral time delay/thermal trip protection and current-limiting protection in one assembly. hese breakers shall be UL rated at 200 ki at 240 Vac and 150 ki at 480 Vac, and shall be series-rated to protect all molded-case breakers downstream as shown on the contract drawings. L. Where indicated on the contract drawings, provide bus plugs with Surge Protective Device (SPD). SPD units shall incorporate Metal Oide Varistors (MOVs) for suppression of transients and filtering capacitors to eliminate electrical line noise and ringing transients. Ratings of SPD bus plugs shall be as indicated on the contract drawings. SPD units shall be Eaton s lipper Power System. M. Where indicated on the contract drawings, furnish bus plugs with metering and communication capabilities to monitor power consumption in watts, watthours, and demand. he energy monitoring device shall be Eaton s IQ Energy Sentinel. N. Where indicated on the contract drawings, provide circuit breaker bus plugs with programmable microprocessor-based trip units that have coordination, communication, monitoring, and advanced warning capabilities. Programmable breaker bus plugs shall be Eaton s Digitrip OPIM. 55

56 echnical Data D E UL low voltage busway Eaton 1000 Eaton Boulevard leveland, OH United States Eaton.com 2015 Eaton ll Rights Reserved Printed in US Publication No. D E / Z16090 ebruary 2015 Eaton is a registered trademark. ll other trademarks are property of their respective owners.