Combination Starters and Distribution Units

Transcription

1 Combination Starters and Distribution Units Several different kinds of combination starters and distribution units can be put into a MCC. Typical combination starters and units are listed below with their standard abbreviations: Figure 1-6 High Density Unit Figure 2 - Standard Unit FVNR Full Voltage Non Reversing... D2-D5 DFVNR Dual Full Voltage Non-Reversing... D6-D7 FVC Full Voltage Contactor... D8-D9 FVR Full Voltage Reversing... D10-D11 2S1W Two Speed One Winding... D12-D13 2S2W Two Speed Two Winding... D14-D15 PW Part Winding... D16-D17 RVAT Reduced Voltage Auto-Transformer... D18-D19 YDC Reducing Voltage Wye Delta Closed Transition... D20-D21 YDO Reducing Voltage Wye Delta Open Transition... D22-D23 FCB Feeder Circuit Breaker... D24 DFCB Dual Feeder Circuit Breaker... D24 FDS FeederDisconnect Switch... D24 DFDS Dual Feeder Disconnect Switch... D24 XFMR Transformer (lighting)... D25 PNLBD Panel Board... D26 RVSS Reduced Voltage Soft Start... D26 VFD Variable Frequency Drive... D26 HFVNR High Density Full Voltage Non-Reversing... D26 D1

2 Combination Starter Ratings and Dimensions FVNR - Full Voltage Non-Reversing Unit With Fusible Switch or Circuit Breaker Standard Features Plug-in unit, Sizes 0-5. Circuit Breaker Sizes 0-5. Fusible Switch Sizes 0-4. Molded case switch, Sizes 5 and 6. Fuse clips for Class R fuses. Electrical starter seal-in contact for 3-wire control: Size 0-1, NO only. Sizes 2-4, SPST. Size 5-6, SPDT. Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks. Load power terminals: Type A, Bd. - Connect to starter terminals. Type Bt, C. - Sizes 0-3, stationary blocks. Sizes 4-6, connect to starter terminals. Starters: Innova/Plus, Sizes 0-4 Bimetallic Ambient Compensated Overload Typical Schematic D2

3 Available Features - Standard Unit Size Control power transformer with fused secondary and Surge suppressor. Dual fused primary. Solid state overloads. Pull-apart control terminals. Pull-apart load terminals, Sizes 0-2. seal-in contact. Thermal magnetic circuit breaker. 4 pilot devices mounted on unit device panel. Control relay. Surge Suppressor. ETM. Handle Interlocks operate with handle. Extra starter auxillary contacts in addition to NO seal-in contact. Class J Fuse Clips. Refer to tables below for maximum size control power transformers, relays, and timer addition. Communicating devices (ASi, SIMICODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC SPST NO or NC SPDT NO & NC FVNR with ITE MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer * 1* 7 1/2 7 1/ * 1* * 1* / * 1* ** / FVNR with Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V Size Size Size Height Factor VA VA Relay Timer * 1* 7 1/2 7 1/ * 1* * 1* * 1* / * Either/or but not both ** Oversized for additional equipment 1 Fixed mounted unit 2 Fixed mounted unit - space behind not available 3 Starter supplied with interposing relay(s) 200, 230V applications D3

4 Combination Starter Ratings and Dimensions FVNR-High Density Full Voltage Non- Reversing Unit With Circuit Breaker Standard Features Plug-in unit, Sizes 0-1. Circuit Breakers Sizes 0-1. Starters: Innova/Plus, Sizes 0-1, ESP100 Overload Electrical starter seal-in contact for 3-wire control: Size 0-1, NO only. Control circuit terminals: Unit stationary terminal blocks. Typical Schematic D4

5 Available Features - Standard Unit Size Control power transformer with fused secondary and dual fused primary. Thermal magnetic circuit breaker. 2 pilot devices mounted on unit device panel. Surge suppressor. Internal Circuit Breaker Interlock. Extra starter auxiliary contacts in addition to NO seal-in contact. Clips. Refer to tables below for maximum size control power transformer, relays, and timer addition. Communicating devices (ASi, SIMOCODE-DP), (AS-i or SIMOCODE not available on high density units with control power transformer. Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPSTNO ornc FVNR with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / /2 7 1/ / D5

6 Combination Starter Ratings and Dimensions Dual FVNR-Full Voltage Non-Reversing Unit With Fusible Switch or Circuit Breaker Standard Features Plug-in unit Size 0 and 1 MCP or thermal magnetic circuit breaker Innova/Plus Starters - Bimetallic OL Relay Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks Load power terminals: Type A, Bd, Bt, C Electrical starter seal-in contact for 3-wire control: Size 0-1, NO only. Qualifications Extra capacity control power transformer not available. Current limiter attachment not available. No room for relays or timers. Maximum of four pilot devices per dual unit. Maximum of 12 control and 3 power terminal points per starter Circuit breaker type disconnect only. Fusible disconnect not available. TYPICAL SCHEMATIC D6

7 Available Features - Standard Unit Size Ambient Compensated Bimetal Overloads. Standard capacity control power transformer with fused primary and secondary. Solid state overload. Pull-apart control terminals. Pull-apart load terminals. Thermal magnetic circuit breaker. Barrier between starters. Surge suppressors. Handle interlocks operate with handle. Extra starter auxiliary contacts in addition to NO seal-in contact. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC Dual FVNR with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / /2 7 1/ / D7

8 Combination Contactor Ratings and Dimensions With Fusible Switch or Circuit Breaker Standard Features Thermal magnetic circuit breaker. Plug-in unit, Sizes 0-5. Fusible Switch Sizes 0-4. Molded case switch, Sizes 5 and 6. Fuse clips for Class R fuses. Contactor: Innova/Plus, Sizes 0-4 Electrical starter seal-in contact for 3-wire control: Size 0-1, NO only. Size 2-4, SPST. Size 5-6, SPDT. Control circuit terminals: Type A - Connect to component terminals. Type Bd, Bt, C - Unit stationary terminal blocks. Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. - Sizes 4-6, connect to starter terminals. TYPICAL SCHEMATIC D8

9 Available Features - Standard Unit Size Control power transformer with fused secondary, and dual fused primary. Pull-apart control terminals. Pull-apart load terminals, Sizes pilot devices mounted on unit device panel. Control relay. Surge suppressor. ETM Handle interlocks operate with handle. Extra starter auxillary contacts in addition to NO seal-in contact. Class J fuse clips. Refer to tables for maximum size control power transformer, relays, and timer addition. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC SPST NO or NC SPDT NO & NC Full Voltage Contactor with Circuit Breaker Disconnect Ratings and Space Requirements Circuit Standard Maximum Maximum KW Breaker Unit Control Control Resistance Heating Leads Contactor Frame Unit Space Transformer Transformer 200V 230V 460V 575V Size Size Height Factor VA VA Relay Timer * 1* * 1* * 1* / * 1* ** / Full Voltage Contactor with Fusible Switch (refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Contactor Switch Clip Unit Space Transformer Transformer 200V 230V 460V 575V Size Size Size Height Factor VA VA Relay Timer * 1* * 1* * 1* * 1* * 1* * Either/or but not both ** Oversized for additional equipment 1 Fixed mounted unit 2 Fixed mounted unit - Space behind not available 3 Starter supplied with interposing relay(s) 200, 230V applications D9

10 Combination Starter Ratings and Dimensions FVR-Full Voltage Reversing Unit With Fusible Switch or Circuit Breaker Standard Features Plug-in unit, Sizes 0-4 with HMCP, Sizes 0-3 with fusible switch. Circuit Breakers Sizes 0-5. Fusible switches, Sizes 0-4. Molded case switches Sizes 5-6. Fuse clips for Class R fuses. Electrical starter seal-in contact for 3-wire control: Size 0-1, NO only. Size 2-4, SPST. Size 5-6, SPDT. NC reversing electrical interlock per contactor. Mechanical interlock on contactors. Bimetallic Ambient Compensated Overload Starter: Innova/Plus, Sizes 0-1 with vertical mechanical interlock. Innova/Plus, Sizes 2-4 with horizontal mechanical interlock. Bimetallic OL Control circuit terminals: Type A-Connect to component terminal. Type Bd, Bt, C-Unit stationary terminal blocks. Load power terminals: Type A, Bd-Connect to starter terminals. Type Bt, C-Sizes 0-3, stationary blocks. Sizes 4-6, connect to starter terminals. Typical Schematic D10

11 Available Features-Standard Unit Size Control power transformer with fused secondary and dual fused primary. Solid state overload. Pull-apart control terminals. Pull-apart load terminals, Sizes 0-2. Thermal magnetic circuit breakers. 4-pilot devices mounted on unit device panel. Control relay (2). Surge suppressors. ETM. Handle interlocks operate with handle. Extra starter auxiliary contacts in addition to NO maintaining seal-in contact and NC electrical interlock. Class J fuse clips. Refer to tables below for maximum size control power tranformer, relays, and timer additions. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC SPST NO or NC SPDT NO & NC FVR with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / * 1* 7 1/2 7 1/ / * 1* / / FVR with Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V Size Size Size Height Factor VA VA Relay Timer / * 1 * 7 1/2 7 1/ / * 1 * / x * Either/or but not both a Fixed mounted unit Fixed mounted unit-space behind not available Starter supplied with interposing relay(s) V applications D11

12 Combination Starter Ratings and Dimensions 2S1W - Two Speed - One Winding Reconnectable Consequent Pole Unit with Fusible Switch or Circuit Breaker Standard Features Plug-in unit, Sizes 0-4 with MCP, Sizes 0-3 with fusible switch. Circuit Breaker, Sizes 0-5. Fusible switch Sizes 0-4. Molded case switch size 5. Fuse clips for Class R fuses. Electrical starter interlocks-interlock supplied as required for selective control and to electrically interlock starters. seal-in contact. Size 0-1, NO only. Sizes 2-4, SPST. Size 5 SPDT. Mechanically interlocked starters. Innova/Plus, Sizes 0-4. Bimetallic Ambient Compensated Overload 5-pole starter and 3-pole starter horizontally interlocked. Size 2 vertical reversing starter and separate starter. Size 3-4 horizontal reversing starter and separate starter. Control circuit terminals: Type A-Connect to component terminal. Type Bd, Bt, C-Unit stationary terminal blocks. Load power terminals: Type A, Bd-Connect to starter terminals. Type Bt, C-Sizes 0-3, stationary blocks. Size 4 and larger, connect to starter terminals. Typical Schematic D12

13 Available Features-Standard Unit Size Solid state overload. Control power transformer with fused secondary and dual fused primary. Pull-apart control terminals. Pull-apart load terminals Size 0-2. Thermal magnetic circuit breakers. 4-pilot devices mounted on unit device panel. Handle interlock operates with handle. Extra starter auxiliary contacts vary per size of starter. Relays will be supplied if number of available contacts is exceeded. Compelling control starts on low speed only. Push Stop before transferring from higher to lower speed. ETM. Progressive control. Automatic starting on low speed and automatic transfer to fast; stops before transferring from fast to slow. Automatic deceleration. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Control relay (1). Surge suppressors. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Extra Contact Extra Contact Starter Constant or Variable Torque Constant Horsepower Size High/Low High/Low Type 0-1 0/2 2/0 SPSTNO ornc 2-4 4/2 2/4 SPSTNO ornc 5 4/2 2/4 SPDT NO & NC 2S1W with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum Constant or Variable Constant MCP Unit Control Control Torque Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V 200V 230V V Size Size Height Factor VA VA Relay Timer /2 7 1/ / / / x S1W with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Constant orvariable Constant Fuse Unit Control Control Torque Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V 200V 230V V Size Size Size Height Factor VA VA Relay Timer /2 7 1/ / / x Fixed mounted unit 3 Starter supplied with interposing relay(s) 200 & 230V applications D13

14 Combination Starter Ratings and Dimensions 2S2W - Two Speed - Two Winding Unit With Fusible Switch or Circuit Breaker Standard Features Plug-in unit, Sizes 0-4 with circuit breakers, Sizes 0-3 with fusible switch. Circuit Breaker, Sizes 0-5. Fusible switch Sizes 0-4. Molded case switches, Sizes 5. Fuse clips for Class R fuses. Electrical starter interlocks - supplied as required for selective control and to electrically interlock starters. Seal-in contact: Sizes 0-1, NO only. Sizes 2-4, SPST. Size 5, SPDT. Bimetallic Ambient Compensated Overload Mechanical interlock on starters. Starters: Innova/Plus, Sizes 0-4. Sizes 0-4: Innova/Plus consisting of 2 starters horizontally interlocked. Sizes 5: 2 starters with vertical mechanical interlock. Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary - terminal blocks. Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. Size 4 and larger, connect to starter terminals. Typical Schematic D14

15 Available Features - Standard Unit Size Solid state overload. Control power transformer with fused secondary, and dual fused primary. Pull-apart control terminals. Pull-apart load terminals. Sizes 0-2. Thermal magnetic circuit breakers. 4 pilot devices mounted on unit device panel. Handle interlock operates with handle. Extra starter auxiliary contacts vary per size of starter. Relays will be supplied if number of available auxiliary contacts are exceeded. Compelling control starts on low speed only. Push Stop before transferring from high to low speed. Progressive control. Automatic starting on low speed and automatic transfer to fast. Stops before transferring from fast to slow. Automatic deceleration. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Control relay (1). Surge suppressors. ETM. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Hi/Low Type 0-1 3/3 SPST NO or NC 2-4 2/2 SPST NO or NC 5 2/2 SPDT NO & NC 2S2W with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum Constant or Variable MCP Unit Control Control Torque Constant Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V 200V 230V V Size Size Height Factor VA VA Relay Timer /2 7 1/ / / / / x S2W with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Constant or Variable Fuse Unit Control Control Torque Constant Horsepower Starter Switch Clip Unit Space Transf. Transf. 200V 230V V 200V 230V V Size Size Size Height Factor VA VA Relay 55BA /2 7 1/ / / / x Fixed mounted unit 3 Starter supplied with interposing relay(s) 200 & 230V applications D15

16 Combination Starter Ratings And Dimensions PW - Full Voltage Part Winding Unit with Fusible Switch or Circuit Breaker Standard Features Plug-in units. Sizes 0-4, circuit breaker. Sizes 0-4, fusible switch. Thermal magnetic breaker, Sizes 0-5. Fusible switches. Sizes 0-3. Molded case switches, Sizes 4-5.Molded case switch, Size 4, on 230V.Fuse clips for Class R fuses. Starters: Innova/Plus: 0-4. Bimetallic Ambient Compensated Overload Electrical starter interlocks-no interlock supplied on 1M for 3 wire control. Sizes 1, NO only. Sizes 2-4, SPST. Sizes 5, SPDT. Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks. Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. Sizes 4-5 connect to starter. Typical Schematic D16

17 Available Features-Standard Unit Size Control power transformer-fused secondary and dual fused primary. Pull-apart control terminals. Solid state overload. Pull-apart load terminals, Sizes pilot devices mounted on unit device panel. Handle interlock operates with handle. Control relay. Surge suppressors. Extra starter auxiliary contacts in addition to NO seal-in contact. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Communicating devices (ASi, SIMOCODE-PRO) Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC SPST NO or NC 5 3 SPST NO or NC PW with Circuit Breaker: Disconnect Ratings and Space Requirements Circuit Standard Maximum Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer Timer 200V 230V V Size Size Height Factor VA VA Relay 55BA / PW with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer Timer 200V 230V V Size Size Size Height Factor VA VA Relay 55BA / x Fixed mounted unit 3 Starter supplied with interposing relay(s) 200 & 230V applications D17

18 Combination Starter Ratings and Dimensions RVAT - Reduced Voltage Auto-Transformer Unit with Fusible Switch or Circuit Breaker Standard Features Fixed mounted units, Sizes 2-6. Fusible switch Sizes 0-4. Molded case switches, Sizes 5-6. Fuse clips sized for time delay fuses. Class R. Starter: Innova/Plus, Sizes 2-4. Starter (R) and contactor (1S) with mechanical interlock. 3 pole contactor (2S). Bimetallic Ambient Compensated Overloads. Auto Transformer NEMA medium duty 3 coil: 50%, 65%, 80% taps. Class F insulation (minimum). Mounted across bottom of structure. Electrical starter interlocks-no on (2S); (R) for 3 wire control. Sizes 2-4, SPST. Sizes 5-6, SPDT. Control circuit terminals: Type A - Connect to component terminal. Type Bd, Bt, C - Unit stationary terminal blocks. Load power terminals. Type A, Bd - connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. Sizes 4-6, connect to starter terminals. Typical Schematic D18

19 Available Features-Standard Unit Size Control power transformer-fused secondary and dual fused primary. Pull-apart control terminal. Pull-apart load terminals, Sizes 0-2. Solid state overload. Thermal-magnetic circuit breakers. Extra starter auxiliary contacts, 2S or R (relay used). Surge suppressors. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Communicating devices (ASi, SIMOCODE-PRO) RVAT with MCP Type Breaker: Disconnect Ratings and Space Requirements Standard Maximum MCP Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / / / X X X RVAT with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V Size Size Size Height Factor VA VA Relay Timer / x x x Fixed mounted unit 2 Fixed mounted unit - space behind not available 3 Starter supplied with interposing relay(s) 4 Requires 20 deep structure 200 & 230V applications D19

20 Combination Starter Ratings And Dimensions YDC - Reduced Voltage Wye Delta Closed Transition Standard Features Plug-in units. Sizes 0-6, circuit breaker. Sizes 0-5, fusible switch. Fusible switches. Sizes 0-3. Molded case switches, Sizes 4-5. Starters: Innova/Plus: 0-4. Bimetallic Ambient Compensated Overloads Control circuit terminals: Type A-Connect to component terminal. Type Bd, Bt, C-Unit stationary terminal blocks. Electrical starter interlocks-no interlock For 3 wire control. Sizes 2-4, SPST. Sizes 5-6, SPDT. Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. Sizes 4-6 connect to starter. TYPICAL SCHEMATIC D20

21 Available Features-Standard Unit Size Control power transformer-fused secondary and dual fused primary. Pull-apart control terminals. Solid state overload. Phase Failure Relay Pull-apart load terminals, SIzes pilot devices mounted on unit device panel. Handle interlock operates with handle. Control relay. Surge suppressors. Extra starter auxiliary contacts in addition to NO seal-in contact. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPST NO or NC SPST NO or NC YDC with Circuit Breaker: Disconnect Ratings and Space Requirements Circuit Standard Maximum Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / / x x x YDC with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V Size Size Size Height Factor VA VA Relay Timer x Fixed mounted unit 2 Starter supplied with interposing relay(s) D21

22 Combination Starter Ratings And Dimensions YDO - Reduced Voltage Wye Delta Open Transition Standard Features Sizes 0-6, circuit breaker. Sizes 0-5, fusible switch. Fusible switches. Sizes 0-3. Molded case switches, Sizes 4-5. Starters: Innova/Plus: 0-4. Bimetal Ambient Compensated Overloads TYPICAL SCHEMATIC Control circuit terminals: Type A-Connect to component terminal. Type Bd, Bt, C-Unit stationary terminal blocks. Electrical starter interlocks-no interlock For 3 wire control. Sizes 2-4, SPST. Sizes 5-6, SPDT. Load power terminals: Type A, Bd - Connect to starter terminals. Type Bt, C - Sizes 0-3, stationary blocks. Sizes 4-6 connect to starter. D22

23 Available Features-Standard Unit Size Control power transformer-fused secondary and dual fused primary. Pull-apart control terminals. Solid state overload. Phase Failure Relay Pull-apart load terminals, SIzes pilot devices mounted on unit device panel. Handle interlock operates with handle. Control relay Surge suppressors. Extra starter auxiliary contacts in addition to NO seal-in contact. Class J fuse clips. Refer to tables below for maximum size control power transformer, relays, and timer additions. Auxiliary Contacts Starter Extra Contacts Size Per Starter Type SPSTNO ornc SPSTNO ornc YDO with Circuit Breaker: Disconnect Ratings and Space Requirements Circuit Standard Maximum Breaker Unit Control Control Maximum Horsepower Starter Frame Unit Space Transformer Transformer 200V 230V V Size Size Height Factor VA VA Relay Timer / / x x x YDO with Standard Fusible Switch (Refer to Pg E4): Disconnect Ratings and Space Requirements Maximum Standard Maximum Fuse Unit Control Control Maximum Horsepower Starter Switch Clip Unit Space Transformer Transformer 200V 230V V Size Size Size Height Factor VA VA Relay Timer x Fixed mounted unit 3 Starter supplied with interposing relay(s) D23

24 FeederTap Circuit Breakers These breakers are thermal magnetic type and feed lighting or power circuits. 125A and 250A frame breakers are mounted in plug-in units. Higher rated breakers are fixed mounted. (See chart on page G6 for short circuit ratings and type of circuit breakers available.) FeederTap Fusible Switches Fusible feeder switches, 30A through 200A, are mounted in plug-in units. Switches above 200A are fixed mounted and consist of molded-case switches and separate fuse blocks. Dual-mounted fusible switches are available, 30A and 60A, with clips of same rating. Fuse clips are Class RK dimensions for A. Dual mounted 125A frame breakers may be mounted in a 12 plug-in unit with a common door. Circuit breakers Fusible disconnect switch FeederTap Circuit Breakers and Fusible Switches: Disconnect Ratings and Space Requirements Unit Fuse Unit Max. Height Switch Clip Height Frame Trip Rating Size Size Amps 1CB 2CB (A.) Amps 1 Sw. 2 SW Fixed mounted unit. 2 Requires load terminal blocks. 3 Stab opening at top of unit not available in rear. D24

25 Distribution Units A Motor Control Center is principally intended to house multiple combination starters for the control of electrical motors. It is often convenient to include a limited number of power distribution units. These units consist of the following: Transformers Feeder tap circuit breakers Feeder tap fusible disconnects Lighting panels Transformer Protection - Lighting and Master Control Primary protection is required, per NEC sizes as follows: (lp = transformer primary currents.) 125% lp for lp greater than 9A. 167% lp for lp less than 9A. 300% lp for lp less than 2A. In addition to primary protection, secondary protection must be supplied if the transformer secondary is 3 or 4 wire (dual voltage). Secondary protection is not required if the transformer is 2 wire (single voltage secondary). Description of Standard Transformers Single Phase Transformers 1KVA thru 2KVA 240/480V Primary 120V Secondary 50/60 Hz Transformer Ratings and Space Requirements Single Phase Transformers: 1KVA and 2KVA sizes with 120V secondary can be mountedin a single 12 plug-in unit with a primary circuit breaker or fusible disconnect. 3KVA and larger sizes are mounted in bottom of section. 20KVA or larger sizes require 20 deep sections. 3KVA thru 5KVA 240/480V Primary 240/120V Secondary 50/60 Hz 7 1/2, 10, 15, 25, 30KVA 240/480V Primary with (2) 2 1/2% FCAN and (4) 2 1/2% FCBM Taps 240/120V Secondary, 60 Hz 220C insulation, 150C rise Three Phase Transformer 6 to 15 KVA 480V Primary with (2) 5% FCBN taps 208/120V Y - connected Secondary KVA 480V Primary with (2) 2 1/2% FCAN and (40) 2 1/2% FCBN taps 208/120V Y - connected Secondary 220C insulation, 150C rise 3 Phase Transformers: All three phase transformers require 20 deep sections, must be mounted in the bottom, and will not have vertical bus in that compartment. Refer to page B22 for conduit entry. All 3KVA and larger single phase and all three phase transformers are mounted approximately 5 inches above the structure base channel sills. Single Phase Transformer 480/240V - 120/240V Secondary 60 Hz Transformer Primary Breaker KVA Unit Size Trip Amps Rating Height * 240V 480V Note: No vertical bus behind or below. 5.0KVA and larger. 20KVA or larger requires 20 deep structures. * Does not include 6 bottom wireway space. Three Phase Transformer 480V Primary - 208/120V Secondary 60 Hz Primary Breaker KVA Unit Size Trip Amps Rating Height * 480V Note: All three phase transformers require 20 deep structures and 20 wide doors. D25

26 Panel Board Panel Boards Full size bolt-on breakers - 1, 2, and 3 pole - 15 to 100A. 1 phase 3 wire - 120/240 volt or 3 phase 4 wire - 120/208 volt 3 phase 4 wire - 380/220 volt 3 phase 4 wire - 480/277 volt Aluminum bus and 225A depending on number of circuits. Main lug only and 225A Main circuit breaker and 225A - 12 to 42 circuits. Disconnect Ratings and Space Requirements: Circuit Breaker Panel Boards Main Bus Unit Number Breaker Rating Height Circuits Type (Amps) (Amps) (Inches) 18 1Ø-3W Ø-3W Ø-3W Ø-4W Ø-4W Ø-4W Ø-3W Ø-3W Ø-3W Ø-4W Ø-4W Ø-4W ,000A 240V short circuit rating. UL listed. D26