MASTERPACT Universal Power Circuit Breaker

MASTERPACT Universal Power Circuit Breaker Class 31 CONTENTS Description Page Introduction... 1 Advantages... 3 Description... Control Units... 7 Accessories... 3 Switch... 3 Trip Curves... 37 Wiring Diagrams... 4 Circuit Breaker Dimensions... 4 Appendix...

Introduction Standard Compliance UL489: MP08 to MP50 circuit breakers and their accessories are Listed under UL files E3335, E103955 and E113555 UL10/ANSI: MC08 to MC50 circuit breakers are UL Listed according to UL10 (ANSI C37-13) under file E11835 International Standards: the MASTERPACT circuit breaker has been designed to meet all the major standards including: IEC 947- and related standards such as VDE, BS, EN, etc. JEC, JIS UL 1008: MP1, MP0 and MP30 circuit breakers are suitable for use in transfer switch equipment Marine Applications: Homologated by Bureau Veritas Approved by Det Norske Veritas and Germanische Lloyd's Listed by Lloyd's Register of Shipping American Bureau of Shipping application UL marine High Short-time Current Rating: Up to 100 ka for 1 sec. The exceptional short-time rating of 75,000 A in a 3000 A frame and 100,000 A in a 4000 A frame and above allows the circuit breakers to be fully selective up to their interrupting ratings. 100% Rated The circuit breakers are designed for continuous operation at 100% of their current rating. Other Performances The UL 489 and UL10 (ANSI C37-13) standard performance tests assure that the circuit breaker has sufficient characteristics to be used in normal conditions. However, the circuit breaker exceeds, without additional costs, the UL standard 1,500 operations required in endurance. The heavy-duty mechanism and the contact design provide a mechanical endurance of 10,000 operations (approx.) without maintenance (see page 4). Tropicalization The standard moisture and fungus protection ensure normal operation under extreme ambient conditions. MASTERPACT circuit breakers comply with T tropicalization (IEC Standard 8--30); relative humidity 95% at 113 F (45 C) and % at 131 F (55 C) (hot, humid climate). Salt spray resistance as per IEC 8--11. Poles The 4-pole version is an efficient solution to ground fault problems created by incorrectly grounded standby generators and incorrect transfer switching systems. By isolating the neutral of multiple sources coupled together, 4-pole circuit breakers prevent ground faults from returning to the source via unintended paths. Where unintended paths exist, ground fault sensing can become inaccurate or create nuisance tripping. Ampere Rating (A) 3-Pole 4-Pole 0 MP-MC MP-MC 100 MP MP 100 MP-MC MP-MC 000 MP-MC MP-MC 500 MP MP 3000 MP MP 300 MC 4000 MP-MC MP (1) 5000 MP-MC MP (1) 300 MP (1) (1) Not UL Listed. 1

Introduction Ratings Type Ampere Rating (A) Sensor Ratings (A) MP/MC08 0 50 400 00 0 MP1 100 0 100 MP/MC1 100 100 100 MP/MC0 000 100 000 MP5 500 000 500 MP30 3000 500 3000 MC3 300 500 300 MP/MC40 4000 500 3000 4000 MP/MC50 5000 4000 5000 MP3 300 5000 300 Interrupting Ratings UL489/NEMA AB1 Type Rating (A) 4 Vac 00 Vac Short-time Standard Interrupting Rating MP08 H1 0 5 ka 5 ka 50 ka MP1 H1 100 5 ka 5 ka 50 ka MP1 H1 100 5 ka 5 ka 50 ka MP0 H1 000 75 ka 75 ka 75 ka MP5 H1 500 75 ka 75 ka 75 ka MP30 H1 3000 75 ka 75 ka 75 ka MP40 H1 4000 100 ka 100 ka 100 ka MP50 H1 5000 100 ka 100 ka 100 ka MP3 H1 300 (1) 100 ka 100 ka 100 ka High Interrupting Rating MP08 H 0 100 ka 5 ka 50 ka MP1 H 100 100 ka 5 ka 50 ka MP1 H 100 100 ka 5 ka 50 ka MP0 H 000 100 ka 75 ka 75 ka MP5 H 500 100 ka 75 ka 75 ka MP30 H 3000 100 ka 75 ka 75 ka MP40 H 4000 15 ka 100 ka 100 ka MP50 H 5000 15 ka 100 ka 100 ka MP3 H 300 (1) 150 ka 100 ka 100 ka (1) Not UL Listed. UL10/ANSI C37 13/NEMA SG3 Type Rating (A) 508 V 35 V Short-time Special Interrupting Rating MC08 N1 0 50 ka 50 ka 4 ka MC1 N1 100 50 ka 50 ka 50 ka Standard Interrupting Rating MC08 H1 0 5 ka 5 ka 50 ka MC1 H1 100 5 ka 5 ka 50 ka MC0 H1 000 5 ka 5 ka 5 ka MC3 H1 300 5 ka 5 ka 5 ka MC40 H1 4000 100 ka 100 ka 100 ka MC50 H1 5000 100 ka 100 ka 100 ka

Advantages Drawout Circuit Breaker Design The drawout assembly mechanism allows the circuit breaker to be racked in four positions (connected, test, disconnected and withdrawn). The closing and opening push buttons, the racking handle and racking mechanism are accessible through the front door cutout. Therefore the circuit breaker can be disconnected without opening the door and accessing live parts. Safety shutters can be provided as an option for protection from live parts when the circuit breaker is removed. 031300 0313007 0313003 0313004 0313005 Connected Position Test Position Disconnected Position True Two-step Stored Energy Mechanism The closing time is less than five cycles. The circuit breaker is operated via a stored-energy mechanism which can be manually or motor charged. Closing and opening operations can be initiated either from the local push buttons on the circuit breaker front face or by remote control. O C O cycle is possible without recharging. Designed for No Maintenance... The circuit breaker has fewer parts (by a factor of at least five) than conventional circuit breakers while performing the same functions. This leads to greatly enhanced reliability and reduction in maintenance. Under normal operating conditions, according to standards and controlled by tests, the circuit breaker does not require maintenance. But Exceeds Standards with an Easy and Reduced Maintenance It is easy to remove the arc chutes and visually inspect the contacts and wear indicator. The operation counter (spring-charging motor option) can also indicate when inspections and possible maintenance should be done. After operating conditions exceeding those given by standards, it is possible to extend the circuit breaker life by: Replacement of arc chutes and spring charging motor by the user. Replacement of main contacts by an after sale service team. Note: See pages 3 for additional information. Contact Good (Circuit Breaker Closed) Contact Worn (Circuit Breaker Closed) 3

F t 90 %Ir 105 push to reset 90% 50% 0% Ih fault th I1 I I3 Io=3000A cat. no. 54775 for masterpact test Ir I STR 58 U.9.9 10 40.88.95 0.85.98 30 4.8 1 15 at 1,5Ir xio Im tm 4 5.4.3 3.3. 8..1 1.5 10.1 0 on I t off 8 1 17 Ir fault 4 off tr 500 00.4.4 Im fault 400 0.3.3 tm 30 1000.. I 50 100.1.1 on I t off.9.93.8.85.8.95.7.9.85.98..95.8 1.5 1 xir xir test with sensors In = 000A + S T + Ir : Im : th : I reset V xin xio Ih th A i Ic1 Ic tr IG LI I LIG LG G L off R T test push OFF push ON masterpact M08 H circuit breaker 3 pole 00V 50/0Hz frame size 000A ventilation is not required NEMA interrupting rating max RMS sym amps Volts Amps 40 100K 4 100K 00 5K short time rating Icw=75KA 0.5 sec. E3335 UND. LAB. O List. CIRCUIT BREAKER Doles. Issue N LM-879 Advantages Single Design up to 300 A All frame sizes have been designed with the same technology featuring identical depth and door cutouts, and common control units and accessories. 3 40-50 3 08-30 0313008 O O OPEN discharged I suitable for continious operation at 100% rating in a minimum cubical space H17.5 by W1 by D14.1/4 inches 00000 IEC 957-90V 50/0Hz interrupting rating Icu 3/440V 75KA 0V 75KA Icu 3/440V 75KA 0V 75KA connected disconnected Field-installable Accessories As the installation develops and changes, the circuit breaker can develop and change with it. Most accessories are field-installable, without losing the UL Listing mark, without any adjustment and with only the aid of a screwdriver. The uniform design of the circuit breaker line allows these accessories to be common for the whole line. 0313010 0313009 Front Connection of Secondary Circuits All accessory terminals are located on a connecting block which is accessible from the front even with the circuit breaker in the test or disconnected position. This is particularly useful for field inspection and modification. 4

Advantages Disconnecting through Door The racking handle and racking mechanism are accessible through the front door cutout. Disconnecting the circuit breaker will therefore be possible without opening the door and giving access to live parts. Isolation Function by Positive Indication of Contact Status The mechanical indicator is truly representative of the status of all three main contacts. Segregated Compartment Once the front cover has been removed to provide access to the auxiliary compartment, the main contacts remain fully isolated. Furthermore, interphase partitioning allows full insulation between each pole even if the front cover has been removed. Reinforced Insulation Two insulation barriers separate the front of the circuit breaker from main circuits. 0313011 5

F t 90 %Ir 105 Ih fault th Ir fault cat. no. 54775 for masterpact tr with sensors In = 000A test test Ir : Im : th : Im fault tm I i I Ir.9.9 10 40.88.95 0.85.98 30 4.8 1 15 at 1,5Ir xio 4 5.4.3 3.3. 8..1 1.5 10.1 0 on I t off 8 1 17 4 off xio 500 00.4.4 400 0.3.3 30 1000.. 50 100.1.1 on I t off.8.85.8.7.9.85.98..95.8 1.5 1 xir xir A xin tr IG LI I LIG LG G L off I R T E3335 UND. LAB. O List. CIRCUIT BREAKER Doles. Issue N LM-879 Description 1 3 Description 031301 13 1 11 4 5 1. Arc chamber and terminal covers. Accessories and control unit front connecting block 3. Position carriage switches 4. Opening coils 5. Arc chute. Spring charging motor 7. Front cover 8. Control unit 9. Racking crank 10. Pull-out handgrip 11. Retractable rails 1. Handling handgrip 13. Safety shutters 10 9 8 7 11 1 Front View 0313013 push to reset 90% 50% 0% I1 I I3 Io=3000A + S T + reset V Im tm STR 58 U Ih th Ic1 Ic.9.93.95 connected test disconnected O push OFF O OPEN I push ON discharged MERLIN GERIN masterpact MP0 H1 circuit breaker 3 pole 00V 50/0Hz frame size 000A suitable for continious operation at 100% rating in a minimum cubical space H17.5 by W1 by D14.1/4 inches ventilation is not required 00000 interrupting rating max RMS sym amps Volts Amps 40 75K 4 75K 00 75K short time rating 75KA IEC 957-90V 50/0Hz interrupting rating Icu 3/440V 75KA 0V 75KA Icu 3/440V 75KA 0V 75KA short time rating Icw=75KA 0.5 sec. 1 3 4 5 1. Charging handle. Manual opening push button 3. Manual closing push button 4. Stored energy mechanism status indicator (charged or discharged) 5. Main contact position indicator (open or closed). Disconnected position locking (key interlock) 7. Disconnected position padlocking 8. Drawout position indicator showing that the circuit breaker is in the connected, test or disconnected position 9. Racking crank storage 10. Door escutcheon 11. Fault indicator and reset button 1. Open position locking (key interlock) 10 9 8 7

Control Units 0313014 The circuit breaker can be equipped with a microprocessor-based, electronic control unit which provides all the traditional protection of the universal power circuit breaker (long-time, short-time, instantaneous and ground-fault) plus other built-in functions: RMS sensing (standard) Alarm switch (standard) Overcurrent trip switch (standard) Interchangeable rating plugs (on STR8DP, STR38SP and STR58UP) Thermal memory and I t ramp (standard on STR 38-58 control unit) Defeatable instantaneous (standard on STR 38-58 control unit) Zone-selective interlocking for ground-fault and short-time (option) Current and load meter (option) Load-monitoring outputs (option) Fault indicators (option) Communication ability (option) Control Units STR 18M STR 8D STR 38S STR 58U Basic Features Long-time (1) Setting Adjustable Adjustable Adjustable Delay Fixed Fixed Adjustable Short-time Pickup Adjustable Adjustable Delay Adjustable Adjustable Instantaneous Adjustable Adjustable Fixed () Adjustable () Test Receptacle Standard Standard Standard Additional Features (Options) Ground-fault Protection (3) Built-in Ammeter Fault Indicators Segregated Alarm Switch Zone-selective Interlocking Load Monitoring Communication Outputs (1) Long-time pickup at 1.1 current setting. () Defeatable on N1 and H1 types. (3) Two types: residual sensing (T) or residual source ground return (W). 7

Control Units 031301 0313015 push to reset I I1 I I3 90% STR 8 D 50% 0% Ir.9.9 90.88.95 %Ir 105.85.98.8 1 xio Im 4 5 3 8 1.5 10 xir t Ir : Ir Im : Im i + test t 1 3 4 5 7 8 9 10 11 STR 8D Control Unit for General Application 1. Mechanical pop-out type fault indicator and reset button: Indicates that a fault trip has occurred Prevents closing of the circuit breaker after fault until reset. Ammeter (LCD digital display) 3. Ammeter selector used to read: Phase currents (1,, 3, N) Or the phase with the highest load current (max.) 4. Load indication (bar graph in % of current setting) 5. Sensor rating. Rating plug (on STR 8DP) 7. Long-time current setting 8. Instantaneous pickup 9. Local and remote pre-trip alarm: LED on at 90% of current setting LED flashing on overload (1) Remote indication by static contact 10. Available spaces for setting identification 11. Test receptacle Overcurrent Protection RMS Sensing Long-time Current Setting STR 8DP: 0.8 to 1 x Rating Plug (Pickup at 1.1 x Setting) Max. Delay Rating Plug Current Sensor Plug Rating STR 8D: 0.4 to 1 x Current Sensor (Pickup at 1.1 x Setting) Fixed: 7.5 sec. at x Current Setting 50 A 50 00 150 15 A 400 A 400 300 50 00 A 00 A 00 500 400 300 A 0 A 0 00 500 400 A 100 A 100 1000 0 00 A 100 A 100 100 1000 0 A 000 A 000 100 100 1000 A 500 A 500 000 100 100 A 3000 A 3000 500 000 100 A 300 A 300 3000 500 000 100 A 4000 A 4000 300 3000 500 000 A Long-time Setting 5000 A 5000 4000 300 3000 500 A 300 A 300 000 5000 4000 300 3000 A Instantaneous Pickup 1.5 to 10 x Current Setting Built-in Ammeter (Optional) Option I Values Displayed Phase 1,, 3, Max., Neutral Current Accuracy ±1.5 % () Instantaneous Bar Graph Indication Phase 1,, 3 10% Steps Control Power Not Required (3) Fault or Alarm Indicators Not Discriminated Local Pop-out Type Indicator and LED Pre-trip Alarm I Remote Overcurrent Trip and Pre-trip Alarm Switches (see pp. 14 15) (1) According to time-current curves: between 105% and 10% of current setting. () Total accuracy including current sensors: ±4.5%. (3) Control power not required for loads greater than 0% of current sensor. Required for load less than 0% of current sensors if maximum demand memory requested (see diagram on p. 43). Note: Io: Rating plug In: Sensor rating Ir: Long-time pickup tr: Long-time delay Im: Short-time pickup tm: Short-time delay I: Instantaneous pickup Ih: Ground-fault pickup th: Ground-fault delay 8

Control Units 0313018 0313017 18 19 t t F 90 105 push to reset 90% 50% 0% %Ir Ih fault th Ir fault tr test test I1 I I3 Ir : Im : th : Im fault tm I overcurrent + + ground i Ir.88.85.9.9.95.98.8 1 xio I STR 38 S Im tm 4 5.4.3 3.3. 8..1 1.5 10.1 0 xir on I t off I max. xin off Ih th T 500 00.4.4 400 0.3.3 30 1000.. 50 100.1.1 A on I t off 1 3 4 5 7 8 9 10 11 1 13 14 15 1 17 STR 38S Control Unit for Selective Application 1. Mechanical pop-out type fault indicator and reset button: Indicates that a fault trip has occurred Prevents closure of the circuit breaker after fault until reset. Ammeter (LCD digital display) 3. Ammeter selector used to read: Phase currents (1,, 3, N, ground) Or the phase with the highest load current (max.) 4. Load indication (bar graph in % of current setting) 5. Sensor rating. Local and remote pre-trip alarm: LED on at 90% of current setting LED flashing on overload (1) Remote indication by static contact 7. Rating plug (on STR 38SP) 8. Long-time current setting 9. Short-time pickup 10. Short-time delay 11. Instantaneous ON/OFF selector 1. Available space for setting identification 13. Ground-fault (option T) pickup 14. Ground-fault (option T) time delay 15. Local (option F) fault indicators consisting of built-in light emitting diodes; fault indicators differentiate the three causes of tripping: overload, short circuit and ground fault, if any 1. Test receptacle 17. Fault indicator saving battery (option PIL) 18. Fault indicator reset or battery test button 19. Fault indicator reactivating button (option PIL) () Overcurrent Protection RMS sensing Long-time Current Setting STR 38SP: 0.8 to 1 x Rating Plug (Pickup at 1.1 x Setting) Delay Thermal Memory as Standard STR 38S: 0.4 to 1 x Current Sensor (Pickup at 1.1 x Setting) Fixed: 7.5 sec. at x Current Setting Rating Plug 4 to Rating Plugs Available Per Sensor Rating: See STR 8D Control Unit, p. 8 Short-time Pickup 1.5 to 10 x Current Setting Long-time Setting Delay Bands 0 0.1 0. 0.3 0.4 with I t OFF 0.1 0. 0.3 with I t ON Instantaneous Pickup High-set Fixed Type (3) Defeatable on N1 and H1 Types Ground-fault Protection (Option T or W) (4) Pickup 0.1 x Current Sensor to 100 A (5) Ground-fault Pickup Short-time Pickup Delay Band Fault Indicators (Option F) 0.1 0. 0.3 0.4 with I t Ramp ON/OFF Switch Ground-fault Delay Short-time Delay Not Discriminated Local Mechanical Pop-out Type Indicator and LED Pre-trip Alarm Remote Overcurrent Trip and Pre-trip Alarm Switches (see pp. 14 15) Instantaneous Discriminated Local With Option F (see p. 14) Built-in Ammeter (Option I) I Values Display Accuracy ±1.5% () Phase 1,, 3, Max., Neutral and Ground Current Bar Graph Indication Phases 1,, 3 10% steps Control Power Not Required (7) (1) According to time current curves: 105% to 10% of current setting. () With PIL option, fault indicator lights (15) will light up only when this button is pushed in. (3) See values on pp. 38 40. (4) Residual scheme (T). The maximum ground-fault pickup meets 1999 National Electrical Code paragraph 30-95 (a) (not exceeding 100 A). Source Ground Return scheme (W) on request. (5) 0.1 minimum pickup requires 4 Vdc external power. () Total accuracy including current sensors: ±4.5%. (7) Control power not required for loads greater than 0% of current sensor. Required for loads less than 0% of current sensor if maximum demand memory requested (see diagram, p. 43). 9

Control Units 1 3 0313019 V I+T L+I push to reset reset V I L+I+T L+T T L off I I1 I I3 90% STR 58 U 50% 0% Ir tr.9.9 10 40 90.88.95 0 %Ir 105.85.98 30 4.8 1 15 xio at 1.5Ir Im tm 4 5.4.3 3.3. τtr t Ih fault th F norm min. Ir fault tr 8..1 1.5 10.1 0 xir on I t off I Ir : 1 14 8 19 Im : th : Im fault tm I i overcurrent + test + ground test 4 Max. xin Ih 100A Max th T 500 00.4.4 400 0.3.3 30 1000.. 50 100.1.1 A on I t off Ic1 Ic R.9.93.8.85.8.95.7.9.85.98..95.8 1.5 1 xir xir 1 3 4 5 7 8 9 10 11 1 13 14 15 1 17 18 19 0 STR 58U Control Unit for Universal Application 1. Mechanical pop-out type fault indicator and reset button: Indicates that a fault trip has occurred Prevents closure of the circuit breaker after fault until reset. Switch selector for the type of fault to be remotely indicated and reset flat push button (see option FV, p. 15) 3. Ammeter (LCD digital display) 4. Ammeter selector used to read: Phase currents (1,, 3, N, ground) Or the phase with the highest load current (max.) 5. Load indication (bar graph in % of current setting). Sensor rating 7. Local and remote pre-trip alarm: LED on at 90% of current setting LED flashing on overload (according to time current curves: 105% to 10% of current setting) Remote indication by static contact 8. Rating plug (on STR 58UP) 9. Long-time current setting 10. Long-time delay setting 11. Short-time pickup 1. Short-time delay 13. Thermal memory min./max. selector 14. Instantaneous pickup 15. Ground-fault (option T or W) pickup 1. Ground-fault (option T or W) time delay 17. Available space for setting identification 18. Load monitoring (option R) pickups (see p. 1) 19. Test receptacle 0. Fault indicator saving battery (option PIL) 1. Local (option F) fault indicators consist of built-in light emitting diodes which differentiate the three causes of tripping: overload, short circuit and ground fault, if any. Fault indicator reset or battery test button 3. Fault indicator reactivating button (with PIL option, fault-indicator lights (1) will only light up when this button is pushed in) 10

Control Units 031300 t Ground-fault Pickup Ground-fault Delay Long-time Pickup Long-time Delay Instantaneous Pickup Short-time Pickup Short-time Pickup I Overcurrent Protection RMS Sensing Long-time Current Setting STR 58UP: 0.8 to 1 x Rating Plug (Pickup at 1.1 x Setting) Delay Bands STR 58: 0.4 to 1 x Current Sensor (Pickup at 1.1 x Setting) 0.94 1.88 3.75 7.50 15 30s at x Current Setting Thermal Memory as Standard with Min./Max. Selector Rating Plug Current Sensor Plug Rating 50 A 50 00 150 15 A 400 A 400 300 50 00 A 00 A 00 500 400 300 A 0 A 0 00 500 400 A 100 A 100 1000 0 00 A 100 A 100 100 1000 0 A 000 A 000 100 100 1000 A 500 A 500 000 100 100 A 3000 A 3000 500 000 100 A 300 A 300 3000 500 000 100 A 4000 A 4000 300 3000 500 000 A 5000 A 5000 4000 300 3000 500 A 300 A 300 000 5000 4000 300 3000 A Short-time Pickup 1.5 to 10 x Current Setting Delay bands 0 0.1 0. 0.3 0.4 with I t OFF 0.1 0. 0.3 with I t ON Zone-selective Interlocking with Option Z (see p. 13) Instantaneous Pickup Adjustable from to Max. Value (1); Defeatable on N1 and H1 Types Ground-fault Protection (Option T or W) () Pickup Delay Band 0.1 x Current Sensor to 100 A (3) Fault Indicators (Option F) 0.1 0. 0.3 0.4 with I t Ramp ON/OFF Switch Zone-selective Interlocking with Option Z (see p. 13) Not Discriminated Local Mechanical Pop-out Type Indicator and LED Pre-trip Alarm Remote Overcurrent Trip and Pre-trip Alarm Switches (see pp. 14 15) Discriminated Local With Option F (see p. 14) Built-in Ammeter (Option I) Remote With Option FV (see p. 15) Values Display Load Monitoring (Option R) Accuracy ±1.5% (4) Bar Graph Indication Phase 1,, 3 10% Steps Control Power Not Required (5) Phase 1,, 3, Max., Neutral and Ground Current Inverse Time Alarm Pickups Ic1 = 0.8 to 1 x Current Setting Ic = 0.5 to 1 x Current Setting Time delay See Curve, p. 41 Outputs for Communication through DIGIPACT System (Option C) Transmitted Values Entire Settings of the Trip Unit Circuit Breaker Status: Open, Tripped, Closed Alarms: Overload, Type of Fault, Internal Watchdog () Ammeter Values: Phase, Neutral, Ground, Max. Currents (1) See values on pp. 38 40. () Residual scheme (T). The maximum ground-fault pickup meets 1999 National Electrical Code paragraph 30-95 (a) (not exceeding 100 A). Source Ground Return scheme (W) on request. (3) 0. minimum pickup only with external power. (4) Total accuracy including current sensors: ± 4.5%. (5) Control power not required for loads greater than 0% of current sensors. Required for loads less than 0% of current sensor if maximum demand memory requested (see diagram, p. 43). () Internal watchdog: Control unit internal temperature. 11

Control Units 031318 push to reset I1 I I3 90% STR 58 U 50% 0% Ir tr xin xio at 1.5Ir Im tm xio t I xin Ih th T xin i Ic1 Ic R test xir xir F test Thermal Memory Purpose The thermal memory function allows an optimization of cables or bus bar protection in case of low amplitude repetitive faults. Such faults can be due to repetitive motor startings, fluctuating load or subsequent closing after a fault. Traditional electronic protection has no effect when facing such repetitive faults because the duration of each overload above the pickup setting is too short to achieve effective tripping. Nevertheless, each overload involves a temperature rise in the installation, the cumulative effect of which could lead to overheating of the system. Principle DANGER HAZARD OF ELECTRICAL SHOCK, BURN OR EXPLOSION. Use "min" position for emergency only when closing on fault is absolutely necessary. Failure to observe these precautions will cause death, personal injury or electrical shock. The thermal memory function remembers and integrates the thermal heating caused by each pickup setting overrun. Before tripping, the integrated heating value will reduce the associated time delay and, therefore, the reaction of the control unit will be closer to the real heating of the power network system. After tripping, the memory will also reduce the time delay when closing the circuit breaker on fault. 0313183 I 0313184 Temperature Pickup Setting t t STR Trip Units The STR 38S and STR 58U trip units incorporate the thermal memory as standard: Before tripping on long-time and ground-fault protection (if provided) After tripping on long-time protection only, adjustable min./max. position for the STR 58U trip unit is standard The control unit measures the internal temperature rise of the circuit breaker by thermal resistors. The cooling time constant of the memory is not fixed, but depends on the over-temperature condition. 031318 I t 0313185 I t Trip Level Trip Level STR Trip Unit with Thermal Memory t STR Trip Unit without Thermal Memory t 1

Control Units 031301 Main Circuit Breaker Neutral Sensor Ground-fault protection may be applied on 3Ø4W or 3Ø3W circuits. On 3Ø4W circuits an external neutral sensor must be used. This neutral current sensor must have the same ampere rating as the circuit breaker sensor. T1 T 031303 Neutral S1 S 03130 Ground-fault Neutral CTs Note: #18 to #14 AWG cables, max. length 90 ft./30m. Z1 Z11 Z Z1 Out In B Z1 Z11 Z Z1 S1 S Out In T1 T 1 A Z1 Z11 Z Z1 Out In Z1 Z1 Out Z11 Z Out Z11 Z Out In Z1 In Z1 In Z1 Z11 Z Z1 Zone-selective Interlocking (ZSI) Option Z on the STR58U control unit provides selective interlocking on short time or ground fault. A pilot wire links several trip units in the distribution network, as shown in the opposite figure. In the event of a fault, the trip unit will respond to the preset delay only if receiving a signal from the downstream unit. If not receiving a signal, the tripping will be instantaneous. Therefore, the fault is cleared instantaneously by the nearest circuit breaker: the thermal stresses (I t) in the network are minimized, without any effect on the correct time-delay coordination in the installation. Fault 1 Circuit breaker A will clear the fault instantaneously, regardless of its time-delay setting. Fault Circuit breaker B will inform upstream circuit breaker A that it is clearing the fault and will prevent it from tripping instantaneously. Circuit breaker A will trip at the end of its time delay setting if the fault is not cleared during this time. Note: Drawout circuit breaker terminals are delivered with "in" terminals jumpered. Remove the jumper when interlocking with a downstream circuit breaker. The MASTERPACT circuit breaker may also be interlocked with COMPACT NS and CK type molded case circuit breakers with ZSI option. Do not ground ZSI wiring. Cable Size #18 #14 AWG/1.5mm Max. Length 90 ft./30 m Wiring Twisted in Pairs One Turn per 4 in./10 cm No. of Circuit Breakers Upstream: Downstream: No Limit 13

Control Units 031304 push to reset I1 I I3 90% STR 58 U 50% 0% Ir tr xio at 1.5Ir Im tm xio t I Fault Indicator (F) In addition to the mechanical fault indicator, this indicator differentiates the three causes of tripping: overload, short circuit or ground fault, if any. Three light-emitting diodes indicate separately longtime, short-time/ instantaneous and ground-fault trip. A flat push button allows resetting of the indicator after tripping. A separate power supply is required to maintain the indication after tripping of the circuit breaker. Two different possibilities are offered: Connecting a reliable 4 Vdc control voltage on F1-F. Auxiliary power module (AD) is used for other voltages. When the control source is considered as unreliable, a battery pack (BAT) is to be added to an AD power module. From a built-in battery module. When no external control source is available, a built-in battery module may be ordered (option PIL). This module integrates battery testing and indicator reactivating buttons. F test xin Ih th xin i Ic1 Ic xir xir T R 031305 4 Vdc 1W + 03130 AD (1) 031307 AD (1) test + BAT + F1 F F1 F F1 F (1) AC: 10 V, 0 Hz DC: 4 48 15 Vdc Configuration with Reliable Control Voltage Configuration with Interruptible Control Voltage 031308 ALR push to reset I1 I I3 90% 50% 0% STR 58 U Alarm Indicator Pre-trip Alarm Switch (ALR) Delivered as standard with control unit. The alarm indicator is a fixed, front face light-emitting diode which operates as follows: Fixed when the current exceeds 90% of the current setting. Flashing on overload: according to time-current curves, 105% to 10% of current setting. The pre-trip alarm switch is a static contact which closes when in the overload zone, up to the tripping of the circuit breaker. This contact can be used for ultimate load shedding, alarm before tripping, etc. Ir tr xio at 1.5Ir Im tm Output Characteristics Power Supply 0.1 A/40 Vac (Optical Triac) Not Required t I xio Ih xin th T xin i Ic1 Ic R test xir xir F test 14

Control Units Overcurrent Trip Switch (SDE) Delivered standard with control unit. In addition to the fault trip indicator/reset button, one SPDT switch provides alarm/lockout information. This SPDT switch is operated only when the circuit breaker is tripped by the control unit. When the circuit breaker is reset, the "a" switch (alarm) is open and the "b" switch (lockout) is closed. Output Characteristics Power Supply SPDT 10 A/40 Vac Not Required 031309 Fault 8 84 SDE 81 0313030 V push to reset I1 I I3 90% Segregated Trip Switch (FV) This switch works exactly as the standard overcurrent trip switch (SDE) except that a commutator on the front face is used to choose the type of fault which will operate the contact: overload, shortcircuit, ground-fault, or any combination of these types. This option can be used in addition to the SDE switch for remote signalization of particular types of faults. A flat push button allows resetting of the indicator after tripping. STR 58 U 50% Output Characteristics 5 A/40 Vac 0% Ir tr Power Supply Required t xio Im xio I xin Ih at 1.5Ir tm th T Wired in parallel with the remote opening button which operates the shunt trip, the option FV contact provides an electrical interlock which prevents the circuit breaker from being closed after the pre-selected type of faults: for example the circuit breaker will be able to be remotely closed after overload, but not after short circuit. F test test xin i Ic1 Ic xir xir R 0313031 Fault 031303 Fault Remote Open V V C V V MX V1 V1 C1 15

Control Units 0313033 push to reset I1 I I3 90% 50% 0% STR 58 U Load monitoring (R) Option R provides two independent static contacts which operate when the current exceeds adjustable pickup limits: When the current exceeds the limit Ic1 (or Ic), the contact C-R1 (or C-R) closes following an inverse time characteristic A. When the current drops below the limit Ic1 (or Ic), the contact C-R1 (or C-R) opens with constant time delay (10 seconds) B. These contacts can be used for load shedding, alarms, indications, etc. Ir tr xio at 1.5Ir Voltage 40 Vac max. Im tm Outputs 0.1 A triac t I xio F test test xin Ih th xin i Ic1 Ic xir xir T R 0313035 0313034 t B Test Kits A Long-time I Every control unit is equipped with a test receptacle that can be used with a test kit. Tests performed by test kits are only functional tests designed to electrically test the operating integrity of the control unit, the flux transfer device and the mechanical operation of the circuit breaker. Tests are not designed to calibrate the circuit breaker. Calibration can only be done at the factory. 031303 Mini Test Kit Calibration Test Kit 1

pulsar SV OK error com 4V BBus com error JBus push to trip MERLINGERIN multi 9 ATB1s push push Control Units Communication MASTERPACT circuit breakers can be easily connected to a supervising personal computer using the DIGIPACT system. The following four functions can thus be provided: Indication: Status of the circuit breaker (on, off or tripped; connected or disconnected) Causes of tripping (overload, short circuit or ground fault) Monitoring: Operation of circuit breaker (open, closed or reset) Resetting a molded case circuit breaker (COMPACT NS and CK) Management: Control unit settings Pre-trip alarm Load monitoring status Control unit internal temperature alarm Number of operation cycles performed by the circuit breaker Metering: RMS value of the current in three phases Communication with Supervision, Personal Computer 0313037 MODBUS /JBUS MERLIN GERIN 1 3 DIGIPACT DC150 Data Concentrator POWERLOGIC Circuit Monitor POWERLOGIC Power Meter N 1 N 1 Internal Bus SC150 Indication and Control Interface SC150 Indication and Control Interface COMPACT NS Circuit Breaker with Communications-type Auxiliary Switches, Motor Operator and Carriage Switches MASTERPACT Circuit Breaker with STR 58U Trip Unit and Communications Option MASTERPACT Circuit Breaker with STR 58U Trip Unit and Communications Option ATB MULTI 9 Interface for C0 with Motor Operator 17

Control Units 0313038 SC150 Indication and Control Interface Function The SC150 indication and control interface is used to: Transmit to the DC150 data concentrator: Status information (on, off, tripped, tripped due to electrical fault, tripped due to ground fault) for COMPACT CK and MASTERPACT circuit breakers or any other power circuit actuator The connected or disconnected status of withdrawable COMPACT CK and MASTERPACT circuit breakers The status of any external contact Receive commands transmitted by a personal computer or programmable logic controller (PLC) via the DC150 data concentrator (on, off and reset of the COMPACT CK and MASTERPACT circuit breakers or any other power circuit actuator) Receive the information transmitted by the communications option on electronic control units (STR43, STR53, STR55 and STR58) installed in COMPACT NS, COMPACT CK and MASTERPACT circuit breakers: Trip-unit settings The RMS value of the current in the three phases and the neutral Current overloads The causes of tripping (overloads, short circuits or ground fault) Count the number of cycles carried out by the device The SC150 interface is connected to: The DC150 data connector The auxiliary switches (OF, SD, SDE, SDV, CE, CD) on the circuit breaker with which the interface is associated The motor operator for execution of the on, off and reset commands The communications outputs of the STR43, STR53, STR55 and STR58 control units installed in COMPACT NS, COMPACT CK and MASTERPACT circuit breakers A non-assigned digital input is available for other use. The SC150 interface is associated with a single circuit breaker. Important: The SC150 interface is used with COMPACT NS circuit breakers to: Remote to the user the information supplied by the communications option on STR43 and STR53 control units Actuate non-communicating motor operators Count the number of cycles carried out by the circuit breaker Note: When associated with the SC150 interface, COMPACT NS circuit breakers are equipped with standard auxiliary switches and motor operators. The SC150 indication and control interface is not required with COMPACT NS circuit breakers equipped with communication-type auxiliary switches or a communication-type motor operator. Information or Function Managed by the SC150 Indication and Control Interface Information Transmitted or Devices Associated with the SC150 Interface Function Carried Out Display Device Status: On, Off Tripped Tripped Due to Electrical Fault Tripped Due to Ground Fault Connected or Disconnected Position Remotely Control a Device (On, Off or Reset) Count the Number of Operating Cycles Display the Cause of Tripping and the Trip Unit Settings (Settings and Time Delays) Trip an Alarm for Long-time Fault Display the Value of the Current for Each Phase Display Internal Temperature of Switchboard Circuit Breaker or Other Power-circuit Actuator + Standard OF Auxiliary Switches + Standard SD Auxiliary Switches (COMPACT Circuit Breakers) + Standard SDE Auxiliary Switches + SDV Auxiliary Switches (COMPACT NS) or Output Contact of a Ground-fault Relay + Standard CE and CD Auxiliary Switches COMPACT or MASTERPACT Circuit Breaker Equipped with Standard Motor Operator As Above COMPACT or MASTERPACT Circuit Breaker Equipped with STR43, STR53, STR55 or STR58 Electronic Trip Unit with Communications Option (COM) As Above As Above PT100 Probe 4 to 1 F ( 0 to 100 C) 18

Control Units SC150 Indication and Control Interface (continued) Technical Data Digital Inputs (4 V, Self-powered by the SC150 Interface) O Auxiliary Switch F Auxiliary Switch SD Auxiliary Switch (Tripping) SDE Auxiliary Switch (Tripping Due to Electrical Fault) CE Auxiliary Switch CD Auxiliary Switch SDV Auxiliary Switch (Tripping Due to Ground Fault) Other Uses Electrical Characteristics Voltage (Supplied by SC150) Current (Supplied by SC150) Resistance in On-state Resistance in Off-state Control Outputs Opening Closing Reset Voltage One Input One Input One Input One Input One Input One Input One Input One Unassigned Input 4 Vdc 10 ma dc < 30 mω > 10000 MΩ Interrupting Rating AC 500 VA DC One N.O. and N.C. Control Terminal One N.O. Control Terminal One N.O. Control Terminal Note: The opening, closing and reset control signals delivered by the SC150 interface are of the impulse type. The pulse duration is one second for the closing signal and two seconds for the opening and reset signals. 100 440 Vac/4 50 Vdc 300 W Continuous/500 W for Two Seconds Utilization Category AC15/DC13 as Defined by IEC 947-5 Operating Temperature Range Storage Temperature Range 13 to 158 F ( 5 to 70 C) 7 to 185 F ( 55 C to 85 C) Damp Heat Not in Operation (IEC 8--30) cycles 77 F (5 C)/131 F (55 C)/RH 95% Damp Heat in Operation (IEC 8--5) days 8 F (30 C)/RH 93% Salt Mist (IEC 8--5) Kb Test, Severity Level Electromagnetic Compatibility Electrostatic Discharges Level 3 (IEC 1000-4-) Radiated Susceptibility Level 3 (IEC 1000-4-3) Low-energy Conducted Level 4 Susceptibility (IEC 1000-4-4) High-energy Conducted Level 4 Susceptibility (IEC 1000-4-5) Conducted and Radiated Class A Emissions (EN 50081-1) Dimensions x 4 x.5 in. (50 x 105 x 15 mm) Weight.5 lb. (1 kg) Degree of Protection (as Per IEC 59) Front Face IP30 Other Faces Connections Vibrations (Lloyd s 199) Fc Test 5 13. Hz:.04 in. (1 mm) Wiring Diagram See p. 44 Dimensions See pp. 1 IP30 IP0 13. 100 Hz:.03 oz. (0.7 g) 19

Control Units 0313039 DC150 Data Concentrator Function The DC150 data concentrator is used to: Centralize all the information supplied by the various communicating devices: Auxiliary switches and motor operator SC150 indication and control interface Make information available to a personal computer or programmable logic controller (PLC) via the MODBUS/JBUS protocol Log status changes and tripping of the communicating circuit breakers in order to provide the user with a list of time-stamped events Supply the 4 V and 15 V power required by the communicating devices and the internal bus Carry out addressing for the communicating devices Each DC150 data concentrator can be connected to a maximum of 48 instrumented outgoing or incoming circuits. Information or Function Managed by the DC150 Data Concentrator Information Transmitted or Devices Required to Display the Information or Function Carried Out Carry Out the Function Display Device Status: On, Off, Tripped, Tripped Due to Electrical Fault, Connected, Disconnected Tripped Due to Ground Fault Remotely Operate a Circuit Breaker (On, Off or Reset) Inhibit Reset Following Tripping Due to Electrical Fault Select Operating Mode of Motor Operators (Local or Remote) Measure Currents (Phases and Neutral) Count Number of Operating Cycles Display Causes of Tripping Display Trip Alarm for Long-time Fault Display Trip Unit Settings (Thresholds and Time Delay) Circuit Breaker or Other Power-circuit Actuator COMPACT NS Circuit Breaker + Communicating Auxiliary Switches COMPACT/MASTERPACT Circuit Breaker + SC150 Indication and Control Interface COMPACT NS Circuit Breaker + Communicating Auxiliary Switches MULTI 9 Control Device + ATB Interface COMPACT NS Circuit Breaker + Vigi or Ground-fault Relay + SC150 Indication and Control Interface COMPACT NS Circuit Breaker + Communicating Motor Operator COMPACT/MASTERPACT Circuit Breaker + SC150 Indication and Control Interface MULTI 9 Control Device + ATB Interface As Above As Above + CLS150 Indication and Local Control Module COMPACT/MASTERPACT Circuit Breaker Equipped with Electronic Control Unit Comprising Communications Option + SC150 Indication and Control Interface SC150 Indication and Control Interface COMPACT/MASTERPACT Circuit Breaker Equipped with Electronic Control Unit Comprising Communications Option + SC150 Indication and Control Interface As Above As Above Accessories Connection Cable for Internal Bus Cat. No. 50779 5 ft. (0 m) or 507 330 ft. (100 m) Junction Block for Internal Bus Cat. No. 50778 RS485/RS3 Conversion Unit Cat. No. 5078 Connection to Personal Computer An RS3/RS485 converter is required for connection to a personal computer equipped with an RS3 output to the MODBUS/RS485 bus. 0313040 0313041 031311 031304 RS3/RS485 Converter Junction Block Connector Internal Bus Cable 0

Control Units DC150 Data Concentrator (continued) 1 3 4 5 Description 1 15 14 0313043 MERLIN GERIN Digipact DC150 BBus OK com error 4V N 1 N 13 1 11 JBus com error 900 1900 5 3 4 5 3 4 1 1 7 7 8 0 8 0 9 C D E F 9 C D E F A B A B N 1 N 7 8 9 10 1. LED indicating that address is correct. LED indicating that address is incorrect 3. LED indicating presence of 4 V power 4. LED indicating communication on internal bus 5. LED indicating MODBUS/JBUS communication. LED indicating MODBUS/JBUS error 7. MODBUS/JBUS speed setting 8-9. Coding wheels for JBUS address 10. JBUS connector 11. Power supply connector 1. Internal bus connector 13. Confirmation button 14-15. Keys for DIGIPACT module addresses 1. Address display Technical Data Electrical Characteristics Voltage Tolerance +10% 15% Operating Temperature Range Storage Temperature Range 110 40 Vac/115 15 Vdc 13 to 158 F ( 5 to 70 C) 7 to 158 F ( 55 to + 70 C) Electromagnetic Compatibility Electrostatic Discharges Level 3 (IEC 1000-4-) Radiated Susceptibility Level 3 (IEC 1000-4-3) Low-energy Conducted Level 4 Susceptibility (IEC 1000-4-4) High-energy Conducted Level 4 Susceptibility (IEC 1000-4-5) Conducted and Radiated Class A Emissions (EN 50081-1) Protocol MODBUS/JBUS (Slave) Speed 900 or 1900 Baud Data Format Eight Bits, No Parity, One Stop Physical Link RS485 (-Wire or 4-Wire) Implemented MODBUS/JBUS Protocol Functions Read N Consecutive Bits Function 1 or Read N Words Function 3 or 4 Write One Bit Function 5 Write One Word Function Write N Bits Function 15 Write N Words Function 1 Weight 4 lb. (1.5 kg) Degree of Protection (as Per IEC 59) Wiring Diagrams See p. 45 Dimensions See p. 1 IP30 IP0 (Connections) 1

Control Units Sizing of the DIGIPACT Internal Bus Sizing of the DIGIPACT internal bus depends on two factors: The number of devices on the bus The length of the bus Number of Devices As on any communications network, the number of devices that may be connected on the DIGIPACT internal bus is limited. The maximum number of devices is calculated in terms of "communication points." Each type of device represents a number of points indicated in the table below. The total number of points for the various devices connected to a single bus must not exceed 100. If the required devices represent more than 100 points, simply add a second DIGIPACT internal bus with a second DC150 data concentrator. The same sizing rules apply to the second bus as well. Communicating Device Number of Points DC150 Data Concentrator 4 Communicating Auxiliary Switches OF, SD, SDE for COMPACT NS Circuit Breakers Communicating Motor Operator and Auxiliary Switches for COMPACT NS Circuit Breakers Communicating Auxiliary Switches CE and CD for COMPACT NS Circuit Breakers 0 SC150 Indication and Control Interface 4 CLS150 Indication and Local Control Module Associated with: Communicating Auxiliary Switches 0 Communicating Motor Operator and Auxiliary Switches 0 SC150 Indication and Control Interface 0 PM150 Power Meter 4 ATB MULTI 9 Interface Length of Bus The table below indicates the cross-sectional area of the cable that must be used depending on the total length of the bus. Cross-sectional Area Maximum Length of Bus 0.03 in. (0.75 mm ) 0 ft. (00 m) 0.0 in. (1.5 mm ) 1310 ft. (400 m) 0.1 in. (.5 mm ) 300 ft. (700 m) The total resistance of the two wires for the bus must be less than 1 ohms. If the bus is too long, simply: Increase the cross-sectional area of the cable. Create two shorter buses for the installation (in this case, a second DC150 data concentrator is required).

F 90 %Ir 105 90% 50% 0% norm τtr min. t Ir : Im : th : Ih fault th test test + + i I Ir tr I+T L+I I L+I+T L+T T L off I STR 58 U.9.9 10 40.88.95 0.85.98 30 4.8 1 15 at 1.5Ir 4 5.4.3 3.3. 8..1 1.5 10.1 0 on I t off xio Im tm xir 1 14 8 19 Ir fault 4 Max. tr 500 00.4.4 Im fault 400 0.3.3 tm 30 1000.. I 50 100.1.1 on I t off.9.93.8.85.8.95.7.9.85.98..95.8 1.5 1 overcurrent ground xin Ih 100A Max th A Ic1 Ic xir xir reset V R T V Accessories Location Disconnected Position Switches Terminal Block Connected Position Switches Auxiliary Switches Overcurrent Trip Switch 031304 Opening Coil Closing Coil Heavy Usage Auxiliary Switches Ready to Close Switch push to reset I1 I I3 CONNECTED TEST DISCONNECTED Spring Charging Motor Secondary Disconnects Electrical accessories are UL Listed for field installation per UL file E113554. They are provided with terminals and located on secondary disconnecting blocks above the circuit breaker: Fixed-mounted: By one or two connecting plugs (provided). Drawout-mounted: To terminal block A located in the front of the stationary assembly for easy access. (This terminal block is then wired to another connection block B that operates automatically to isolate the internal accessories when the circuit breaker is in the disconnected position.) A 0313044 0313010 B Fixed-mounted Circuit Breaker Drawout-mounted Circuit Breaker Additional Connections (BS): Single connection only is allowed in the terminal block. Multiple connections have to be made by adding extra terminals in the block located on the stationary assembly. The BS option consists of five additional terminals. Connection: Accessory terminals are maintenance-free and may be connected by standard #18 to #14 AWG copper wires. Cable strip length: 3/8 in. (10 mm). 3

Accessories The MASTERPACT circuit breaker is equipped with a true two-step stored energy mechanism which ensures fast opening and closing operations and complete open-close-open sequence without recharging the mechanism. The MASTERPACT circuit breaker has manual actuators that include a charging handle and push-to-open and push-to-close buttons. In addition, remote operation is possible with the following field-installable accessories: Spring charging motor (MCH) Closing release (XF) Undervoltage trip device (MN) or shunt trip (MX) for opening The manual operating mechanism can still be used in an emergency. The addition of the electrical operating mechanism does not alter circuit breaker dimensions. 0313047 Spring-charging Motor (MCH) The spring-charging motor automatically charges the stored energy mechanism (when the circuit breaker closes) making O C O cycles possible without recharging. Opening and closing operations are instantaneous. Control Voltage (V) 0 Hz 10 40 DC 4 48 15 Consumption AC 1 VA DC 1 W Inrush Current to 3 x In for 0.1 sec. Charging Time 3 to 4 sec. 0313048 Spring Charged B4 M CH B1 Operation Counter (CDM) With spring-charging motor option only. The operation counter is read from the front and gives the total number of circuit breaker operating cycles. Spring-charged Switch This type "b" switch is closed when the spring is charged. It comes standard with the spring charging motor and is provided with a common terminal. Max. Current (A) 0 Hz 40 V 10 DC 15 V 0.5 50 V 0.5 4

Accessories 0313049 Closing Coil (XF) This device releases the circuit breaker closing mechanism when the spring is charged. The closing coil is rated for continuous duty. The closing release is supplied on request and can be fitted even on a manual operating mechanism. 0313050 Remote Close A4 XF A1 Anti-pumping Function When the closing coil (XF) is permanently energized, the circuit breaker remains in the open position after it has been opened, either by manual or electrical operation. The circuit breaker can only be closed if the closing coil is momentarily de-energized (see p. 3). Note: This anti-pumping function can be disabled by series connecting a ready-to-close ("b" contact) switch (PF) to the closing coil. Circuit Breaker Closing Time Less Than ms Operating Voltage Range 0.85 to 1.1 x Rated Voltage Control Voltage (V) 0 Hz 10 40 DC 4 48 15 Consumption (Inrush and Sealed) 0 Hz 0 VA DC 15 W 5

Accessories Opening Coils Three types of voltage releases can be used for remote opening of the circuit breakers: Shunt trip (MX) Instantaneous undervoltage trip device (MN) Time-delayed undervoltage trip device (MNR) Possible Combinations Each MASTERPACT circuit breaker can be equipped with: One shunt trip (MX) + one undervoltage trip device (MN or MNR) Or two shunt trips (MX) 0313049 Shunt Trip (MX) This release is rated for continuous duty and operates with control voltages between 85% and 110% of its rating. However, when series connected with an "a" auxiliary switch, the shunt trip can be operated with 55% or more of its rated voltage and can be used for ground-fault protection when combined with a Class 1 ground-fault sensing element. The shunt trip is field-installable. Control Voltage (V) 0 Hz 10 40 4 DC 4 48 15 50 Consumption (Inrush and Sealed) AC 0 VA DC 15 W Operating Time 40 ms 0313051 Remote Open C MX C1 Instantaneous Undervoltage Trip Device (MN) This release instantaneously opens the circuit breaker when supply voltage drops below a value between 35% and 70% of rated voltage. If the release is not energized, the circuit breaker cannot be closed (either manually or electrically). Any attempt to close it will have no effect on the main contacts. Closing is possible when the release voltage reaches 85% of its rated value. The instantaneous undervoltage trip device is field-installable. 031305 Remote Open D4 MN D1

Accessories Time-delayed Undervoltage Trip Device (MNR) (1) To prevent the circuit breaker from tripping in the event of transient voltage drops, this release has a built-in adjustable time delay. If required, this time delay can be overridden by connecting an external switch on an additional circuit (wired by the user). The undervoltage trip device is fieldinstallable. MN MNR (1) Control Voltage (V) 0 Hz 10 10 40 4 4 DC 4 48 15 50 Consumption (Inrush and Sealed) AC 0 VA 0 VA DC 15 W 15 W Operating Time (s) 0.09 0.5 0.9 1.5 3 (1) Not UL Listed. 0313053 Heavy Usage Auxiliary Switches (OF) Four SPDT switches with double break construction. They are directly operated by the main contacts and ensure a large insulation distance in open position. They are therefore particularly suitable for insulation of auxiliary circuits or reliable interlockings. "a" contacts are open when the circuit breaker is open and closed when the circuit breaker is closed. "b" switches are closed when the circuit breaker is open and open when the circuit breaker is closed. See page 30 for operating diagrams. Auxiliary switches are field-installable. 0313054 Closed Open 1 14 4 3 34 4 44 OF 11 1 31 41 7

Accessories 0313055 4 Additional Auxiliary Switches (OFSUP) An external plate holds a set of 4 SPDT switches operated by means of a cable. They are available only for drawout circuit breakers. Standard Auxiliary Switches (O and F) a + b switches available as standard: "a" contacts are open when the circuit breaker is open and closed when the circuit breaker is closed. "b" switches are closed when the circuit breaker is open and open when the circuit breaker is closed. See page 30 for operating diagrams. 031305 Open Closed 1 34 44 F F O O 11 1 31 41 Ready-to-close Switch (PF) This SPDT switch indicates that the circuit breaker is ready to close and that the following conditions exist: The circuit breaker is open The stored energy mechanism is charged The control unit is reset The circuit breaker opening push button is neither locked nor padlocked The circuit breaker is in the fully-connected or test position The switch is field-installable. 0313057 Ready-to-Close 5 54 PF 51 8

Accessories Connected Position Switches (CE) A block of four SPDT switches operate when a drawout circuit breaker is in the connected position. The switch block is field-installable. Disconnected Position Switches (CD) A block of two SPDT switches operate when a drawout circuit breaker is in the disconnected position. The switch block is field-installable. See page 30 for operating diagrams. Test Position Switch (CT) One SPDT switch is operated only when the circuit breaker is in the test position. The switch is fieldinstallable. 0313058 0313059 Disconnected Position Switches (CD) Connected Position Switches (CE) 031300 Disconnected Connected Test 314 31 34 3 334 33 344 34 35 354 3 34 37 374 311 31 31 31 351 31 371 Connection by 1/4 in. Male Quick Connect Terminal Current Ratings (A) Voltage (V) Auxiliary Switch Ready-to-close Position Switch Heavy Usage Standard 4 Additional Switch Connected Disconnected Test 0 Hz 40 10 15 15 1 15 15 15 4 10 (1) 00 3 3 3 3 3 DC 15 3 0.5 0.5 0.5 0.5 0.5 50 3 0.5 0.5 0.5 0.5 0.5 See page 5 for IEC voltage ratings. (1) 8 A for MC08. 9

Accessories Operating Diagrams Auxiliary Switches 031301 0 inch 1 0 1 3 4 5 Fully Closed mm Fully Open Closed Main Contact Position Open 1 3 /8 in. (35 mm) Between Contacts Closed Heavy Usage (OF).1 a b.4. Open Open Closed 3/8 in. (9.5 mm) Between Contacts in Open Position Standard (O) a.1.4 Closed Open Standard (F) b.1. Open Closed 4 Additional (OFSUP).1 b a.4. Note: Contacts are shown with the circuit breaker in the open position. Scale applies only to distance between main contacts. Closed Open Open Closed Position Switches 03130 Disconnected Test Connected Main Disconnect Position Isolation Distance (1 in. [5.4 mm] or More) Connected Secondary Disconnect Position Connected Isolation Distance (1/ in. [13 mm] or More) Connected Position Switches (CE).1 b a.4. Open Closed Closed Open Disconnected Position Switches (CD).1 b a..4 Open Closed Closed Open Test Position Switches (CT).1 b a.4. Open Closed Closed Open Open Closed Note: Position switches are shown with the circuit breaker in the connected position. 30

Accessories Push Button Locking Device (VBP) This device prevents local manual operation of the circuit breaker by covering the opening and/or closing the push buttons. This locking device can be locked by a padlock or a sealing lead. Open Position Lock (VSKA) A key interlock that locks the circuit breaker in the open position by holding the push button in its depressed position. The key interlock is provided. 031303 031304 Push Button Locking Device (VBP) Open Position Lock (VSKA) 031305 Door Interlock (VPEC) This lock prevents the compartment door from being opened when the circuit breaker is in the connected position. If the circuit breaker is put into the "connected" position with the door open, the door can be closed without disconnecting the circuit breaker. Note: For greater protection, this interlock can be used with racking interlock (VPOC) below. Racking Interlock (VPOC) This lock prevents racking in the circuit breaker when the door is open. (Insertion of the circuit breaker racking crank is not possible when the compartment door is open.) Disconnected Position Locking The circuit breaker can be locked in the disconnected position by means of one to three padlocks (padlocks not provided) or one key interlock (factory-mounted option VSKC). The key interlock is on the stationary assembly and accessible with the cubicle door locked. Note: Key interlock is of the captive key type, free when locked. By special order, locking may be possible on disconnected, test and connected positions (VSKEC). Spring Charge Interlock (VEAA) This selection is for a device that prevents the circuit breaker or switch from being fully withdrawn from its cradle when the closing spring is charged. It is standard for ANSI (UL10) circuit breakers and an option on others. The VEAA interlock is not compatible with undervoltage releases (MN, MNR or MNRI). 31

Accessories Mechanical Interlocks Disconnecting When Circuit Breaker Is Closed: During any disconnecting attempt when the circuit breaker is closed, an interlocking device ensures the tripping of the circuit breaker before the actual separation of the main disconnects. The circuit breaker remains, however, operable in the other positions: test, disconnected and withdrawn. Circuit Breaker Closing When Not Completely Connected: The interlocking device mentioned above prevents closing of the circuit breaker if the connecting operation is not completely achieved. Connecting Circuit Breaker When Door Opened: VPEC and VPOC options prevent the compartment door from being opened when the circuit breaker is in the connected position and from connecting the circuit breaker when the door is open. Electrical Interlocks Priority of Opening Orders (Standard): Opening coils (undervoltage trip devices, shunt trip) and opening push button have priority over the closing coils and closing push button. Mechanical Pop-out Type Indicator (Standard): Under overcurrent or ground-fault conditions, the trip indicator located in the control unit will pop out. It is not possible to close the circuit breaker until this trip indicator is reset. This standard function can be disabled upon request. Anti-pumping Function (Standard): In case the closing coil (XF) becomes permanently energized, the circuit breaker remains in the open position A after it has been opened, either by manual or electrical operation. The circuit breaker can be closed only if the closing coil is momentarily de-energized B. Note: This anti-pumping function can be disabled by series connecting a "ready to close" (NC contact) switch (PF) with the closing coil (XF). 03130 Closing Coil ON ON OFF OFF B Shunt Trip (same anti-pumping function with undervoltage trip device) ON OFF OFF Circuit Breaker Status ON ON Without Anti-pumping Function OFF OFF A 3

Accessories 031307 Interlocking Rods and Cables Two or three MASTERPACT circuit breakers can be mechanically interlocked by means of rods or cables. This accessory is mountable on the right side of the circuit breaker. This adaptation can be made on site without modifying the circuit breaker. Mechanical Interlock Between Two or Three Stacked Circuit Breakers This interlocking is obtained by the joining of: One adaptation block One or two adjustable and nonadjustable rods Maximum distance between the two fixing surfaces of the devices: 35 in. (0.89 m) Mechanical Interlocks Between Two Side-by-Side Circuit Breakers This interlocking is obtained by the joining of: One adaptation block One set of adjustable cables with a maximum length of 78 in. ( m) Possible Mounting Arrangements Among Three Stacked Circuit Breakers One use, power supplied by: Two transformers N1 and N which are connected in parallel Or one standby source G 0313070 031309 031308 N1 N G Two uses, independently powered supply by two transformers N1 and N, standby through a circuit breaker or a connection tie switch, preventing the connection in parallel of the two current transformers. N1 C N One use, power supplied by one group of transformers N1, N or N3 or of generators, preventing any connection in parallel. N1 N N3 33

Accessories Safety Shutters (VO) Comprising two independent parts, line and load side, the safety shutters automatically block access to the main disconnects when the circuit breaker is in the disconnected, test or fully withdrawn position. Shutters Lock (VVC) A factory-mounted movable and lockable slide (padlock not supplied) is used to: Lock the line or load shutters in the closed position Hold the line or load shutters in the open position A support is provided at the back of the stationary assembly to hold the slide when not in use. 0313074 0313071 Rejection Feature (VDC) The rejection feature ensures that only the properly designated circuit breaker is matched with the selected cradle assembly. It is made of two parts (one for the frame and one for the stationary assembly), and allows 0 different combinations. 0313073 031307 Safety Shutters Shutters Lock 1 B A 3 4 5 D F C E Stationary Assembly Circuit Breaker Frame Possible Arrangements Frame Stationary Frame Stationary Assembly Assembly A B C 4 5 B C D 1 5 A B D 3 5 B C E 1 4 A B E 3 4 B C F 1 4 5 A B F 3 4 5 B D E 1 3 A C D 5 B D F 1 3 5 A C E 4 B E F 1 3 4 A C F 4 5 C D E 1 A D E 3 C D F 1 5 A D F 3 5 C E F 1 4 A E F 3 4 D E F 1 3 34

Accessories Interphase Barrier (EIP) Mounted between terminals of the stationary assembly, the interphase barrier prevents arc prolongation to the circuit breaker in the event of a line side fault and isolates the circuit breaker connections in insulated bus bar installations. Transparent Cover (CB) Hinged-mounted and locked with a milled head, this cover is designed to be installed on the door escutcheon. It provides a higher degree of protection and is suitable for drawout or fixed-mounted circuit breakers. 0313075 031307 Interphase Barrier Transparent Cover 35

Switch 0313077 Ratings Type Ampere Short-time Rating Short-circuit Withstand When Rating (RMS Sym. Amperes) Protected by a MASTERPACT (A) 00 Vac Max. Circuit Breaker (A) Max. Frame (A) 00 Vac Max. MP08 NA 0 50,000 0 50,000 MP1 NA 100 50,000 100 50,000 MP1 NA 100 50,000 100 50,000 MP0 NA 000 50,000 000 50,000 MP5 NA 500 50,000 500 50,000 MP30 NA 3000 50,000 3000 50,000 MP40 NA 4000 85,000 4000 85,000 MP50 NA 5000 85,000 5000 85,000 MP3 NA (1) 300 85,000 300 85,000 (1) Not UL Listed. CAUTION HAZARD OF EQUIPMENT DAMAGE. This switch contains no overcurrent protection. It is suitable for use at its ampere rating when protected by a MASTERPACT circuit breaker of the same ampere rating. Failure to observe this precaution can cause equipment damage. Construction The MASTERPACT switch is identical to the MP circuit breaker, except that the switch is not equipped with current transformers or an actual control unit. However, it does have an STR08 dummy unit. Accessories, Dimensions and Connections Switch accessories, dimensions and connections are identical to those of the corresponding circuit breaker, except that the overcurrent trip switch is not available with the switch version. Page Accessories 3 Wiring diagrams 4 Circuit Breaker Dimensions 4 3

Trip Curves Overcurrent Protection STR 8D Control Unit 0313078.5..7.8.91 1. 1.5 10000 9000 00 7000 000 5000 3 4 5 7 8 910 0 30 40 50 0 70 90 100 00 300 400 500 00 700 0 900 1000 000 3000 4000 5000 000 7000 00 9000 10000 9000 00 7000 000 5000 4000 4000 3000 000 Current Setting: STR 8D = 0.4 1 x Sensor Rating STR 8DP = 0.8 1 x Plug Rating 3000 000 1000 900 0 700 00 500 400 300 1000 900 0 700 00 500 400 300 00 00 100 90 70 0 50 40 30 100 90 70 0 50 40 30 0 0 Time in Seconds 10 9 8 7 5 4 3 10 9 8 7 5 4 3 1.9.8.7..5 Instantaneous Pickup I = 1.5 10 x Ir 1.9.8.7..5.4.4.3.3...1.09.08.07.0.05.1.09.08.07.0.05.04.04.03.03.0.0.01.5..7.8.91 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 Multiple of Current Setting (Ir) 00 300 400 500 00 700 0 900 1000 000 3000 4000 5000 000 7000 00 9000 10000.01 37

Trip Curves Overcurrent Protection STR 38S Control Unit 0313079.5..7.8.9 1 1. 1.5 10000 9000 00 7000 000 5000 3 4 5 7 8 910 0 30 40 50 0 70 90 100 3 4 5 7 8 910 0 30 40 50 0 70 90 100 9000 00 7000 000 5000 4000 4000 3000 000 Current Setting: STR 38S = 0.4 1 x Sensor Rating STR 38SP = 0.8 1 x Plug Rating 3000 000 1000 900 0 700 00 500 400 300 1000 900 0 700 00 500 400 300 00 00 100 90 70 0 50 40 30 100 90 70 0 50 40 30 0 0 Time in Seconds 10 9 8 7 5 4 10 9 8 7 5 4 3 3 I t ON Short-time Pickup Im = 1.5 10 x (Ir) Inst (*) 1.9.8.7..5.4.3 0.3 0.4 0.3 1.9.8.7..5.4.3. 0. 0...1.09.08.07.0.05 I t OFF 0.1 0.1 0.1.09.08.07.0.05.04.04.03.03.0.0.01.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 3 4 5 7 8910 0 30 40 50 0 70 90 100 70 90 100.01 x Ir x In (*) Instantaneous Rating In (A) 30 0/1000 100/100 000 500 3000/300 4000/5000/300 Fixed Threshold I = In x 8 8 4 0 14 1 10 38

Trip Curves Overcurrent Protection STR 58U Control Unit 03130 9000 00 7000 000 5000.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 3 4 5 7 8 910 0 30 40 50 0 70 90 100 9000 00 7000 000 5000 4000 4000 3000 000 Current Setting: STR 58U = 0.4 1 x Sensor Rating STR 58UP = 0.8 1 x Plug Rating 3000 000 1000 900 0 700 00 500 400 300 1000 900 0 700 00 500 400 300 00 00 100 90 70 0 50 40 30 100 90 70 0 50 40 30 0 0 Time in Seconds 10 9 8 7 5 4 3 Short-time Pickup Im = 1.5 10 x (Ir) 10 9 8 7 5 4 3 Instantaneous Dial Settings 0/1000 A H1: 4 8 1 14 19 Off H: 4 8 1 14 19 Max. 100/100 A H1: 4 8 1 14 17 Off H: 4 8 1 14 17 Max. 000 A H1: 4 8 10 1 14 17 Off H: 4 8 10 1 14 17 Max. 500 A H1: 4 8 10 1 1 Off H: 4 8 10 1 1 Max. 3000/300 A H1: 4 8 10 10 10 Off H: 4 8 10 10 10 Max. 4000/5000/300 A 1.9.8.7..5.4.3..1.09.08.07.0.05.04.03.0 I t ON I t OFF 0.3 0. 0.1 Instantaneous Pickup I = x In Max (*) 0.4 0.3 0. 0.1 1.9.8.7..5.4.3..1.09.08.07.0.05.04.03.0 H1: 4 8 8 8 8 Off H: 4 8 8 8 8 Max..01.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 3 4 5 7 8 910 0 30 40 50 0 70 90 100.01 x Ir x In (*) Instantaneous Rating In (A) 30 0/1000 100/100 000 500 3000/300 4000/5000/300 Maximum Threshold I = In x 8 8 4 0 14 1 10 39

Trip Curves Ground-fault Protection STR 38S STR 58U Control Units 0313081 1000 900 0 700 00 500 400.05.0.07.08.09.1.1.15..3.4.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 Ground-fault Pickup Ih = 0.1 x In 100 A Max. 70 90 100 00 300 400 500 00 700 0 900 1000 1000 900 0 700 00 500 400 300 300 00 00 100 90 70 0 50 100 90 70 0 50 40 40 30 30 0 0 10 9 8 7 5 10 9 8 7 5 4 4 3 3 I t ON Time in Seconds 1.9.8.7..5.4.3 0.4 0.3 1.9.8.7..5.4.3. 0...1.09.08.07.0.05 I t OFF 0.1.1.09.08.07.0.05.04.04.03.03.0.0.01.009.008.007.00.005.01.009.008.007.00.005.004.004.003.003.00.00.001.001.05.0.07.08.09.1.1.15..3.4.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 00 300 400 500 00 700 0 900 1000 Multiple of Current Sensor (In) 40

Trip Curves Load Monitoring STR 58U Control Unit 031308 10000 9000 00 7000 000 5000.05.0.07.08.09.1.1.15..3.4.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 00 300 400 500 00 700 0 900 1000 10000 9000 00 7000 000 5000 4000 4000 3000 000 Current Setting Ir = 0.8 1 x Plug Rating 3000 000 1000 900 0 700 00 500 400 Ic1 = 0.8 1 x Ir Ic = 0.5 1 x Ir 1000 900 0 700 00 500 400 300 300 00 00 100 90 70 0 50 tr 1 = tr / 100 90 70 0 50 40 40 30 tr = tr / 4 30 0 0 Time in Seconds 10 9 8 7 5 4 3 10 9 8 7 5 4 3 1.9.8.7..5.4.3 1.9.8.7..5.4.3...1.09.08.07.0.05.04.03.1.09.08.07.0.05.04.03.0.0.01.05.0.07.08.09.1.1.15..3.4.5..7.8.9 1 1. 1.5 3 4 5 7 8 910 0 30 40 50 0 70 90 100 00 300 400 500 00 700 0 900 1000.01 Multiple of Current Setting (Ir) 41

Wiring Diagrams Diagram No. 89 889 0313083 Drawout Position Switches Auxiliary Switches Remote Operation Connected Disconnected Test Standard Heavy Duty Undervoltage Trip Device or Shunt Trip Ready to Close Motor Operator Disconnected Test Closed Remote Open Spring Charged Connected Open 314 31 34 3 334 33 344 34 35 354 3 34 37 374 Remote Close 1 34 44 1 14 4 3 34 4 44 D4 C A4 5 54 B4 311 31 331 341 351 31 371 MN MX XF Standard OF PF CH 11 1 31 41 11 1 31 41 D1 C1 A1 51 B1 Note: Circuit breaker shown in connected, charged and open position with undervoltage releases energized. 4 1995 Square DÑ All Rights Reserved

Wiring Diagrams Diagram No. 89 889 0313084 Remote Fault and Overload Indication Ammeter Ground-fault Protection Local Fault Indications and Remote Selected Fault Indication Zoneselective Interlocking Load Monitoring Data Transmission Ic Fault Alarm Overload Alarm Selected Fault Ic1 Upstream Circuit Breaker Communication Network (3) S S1 8 84 (1) LR T T1 Z11 Z1 R1 R e + e 1 LT ST Gnd Out SDE LT Alarm I Option T or W Option (4) (5) F or FV Option () Z Option In R Option C Option 81 LR1 F1 _ F + V Z1 () Z C 4 Vdc Downstream Circuit Breaker (1) 84 terminal not available with Z or C option. () Zone-selective interlocking with downstream circuit breaker: remove the jumper. (3) Communication output through DIGIPACT module. (4) Use 4 Vdc supply for loads less than 0% of current sensor rating, or one-phase load less than 40% of sensor rating. (5) Use 4 Vdc supply for lower setting. () Use 4 Vdc supply for F option if not supplied with PIL (battery) option; use 4 Vdc supply (mandatory) for FV option. 43

Wiring Diagrams SC150 Indication and Control Interface 0313085 400 30 To Power Supply "L" C1 NO NC ON C reset C3 CD CE SDV SD Control Outputs Inputs DIGIPACT Internal Bus COM Inputs + NC 0 4V e+ e T+ T C4 ON IN OFFSDE SC150 Indication and Control Interface Motor Operator Power Supply 4-50V CC 100-440V CA L N PT100 Temperature Probe To SC150 Terminals "T+" and "T " External Contact 1 4 To "IN" SC150 Input Terminals To "C4" SC150 Input Terminals To "C3" on SC150 Input Terminals To "C4" on SC150 Input Terminals To "SDE" on SC150 Input Terminals To "CD" on SC150 Input Terminals To "CE" on SC150 Input Terminals 1 4 1 4 1 4 1 4 To "OFF" on SC150 Input Terminals To "ON" on SC150 Input Terminals To "SDE" on SC150 Input Terminals To "C4" on SC150 Input Terminals To Auxiliary Source 1 1 4 CE CD Control Unit STR8 / 38 / 58 OF SDE A4 C B4 Remote Control XF MX M To "ON" SC150 Control Output Terminals to "NO" SC150 Control Output Terminals To Power Supply "L" e+ e SDE Control Unit STR58U Control Unit To "e +" and "e " on SC150 "COM" Terminals A1 C1 B1 To Power Supply "N" MASTERPACT Circuit Breaker Internal Bus Marking Color 4 V Red 0 V Black Internal Bus White Internal Bus + Blue 44

3 4 3 4 Wiring Diagrams DC150 Data Concentrator 031308 4 V 0 V Internal Bus Internal Bus + B B NC DC150 Internal Bus 900 1900 N 1 N 5 5 7 7 8 0 8 0 9 9 A B C D E A B C D E MODBUS/JBUS Speed DC150 Address on MODBUS/JBUS Network 1 110 40 Vac 115 15 Vdc A Protection 5 9 RS485 MODBUS/JBUS C Connectors The DC150 concentrator is connected using a SUBD9 male connector with a metal hood (e.g., ITT canon, DE9P K83 + hood or DE115-500-5-RD). The DC150 concentrator is equipped with a SUBD9 female connector. For a multidrop configuration, the tap-offs can be made either via a branching off of RS485 connector Catalog No. 50788 or standard connection boxes, taking care to respect the necessary precautions when connecting the shieldings. The adaptation of an RS3 output on a personal computer to accept the RS485 standard connector should be done with the RS485/RS3 converter Catalog No. 5078. 0313087 0 V 0 V 5 V Rp Rp Rc Recommended Protection and Cable Sizes 0313088 DC150 Concentrator with Polarization and -wire Adaptation Recommended Type Catalog No. Protection C0N Supplementary Circuit Protector 3-Phase MG44 or 414 Curve C 10 A Fuse-link 10 A am 150 Marking (1) Connection Cable A Voltages 0.0 to 0.1 in. (0.75 to.5 mm ) B Internal Bus 0.03 to 0.1 in. (0.75 to.5 mm ) (Twisted) C MODBUS/JBUS 0.03 to 0.1 in. (0.75 to.5 mm ) (Shielded) Internal bus Marking Color (1) See first drawing above. RD+ (A') RD (B') TD+ (A) TD (B) 1 3 4 5 7 8 9 4 V Red 0 V Black Internal Bus Internal Bus + White Blue 5 1 3 4 9 7 8 L+ (A / A') L (B / B') 45

Circuit Breaker Dimensions Door Escutcheon (Drawout Mounting) Door Cutout Drilling of the Door Door Escutcheon (Fixed Mounting) Door Cutout 031309 0313093 0313089 0313090 0313091 10.3 70 0.75 19. Basis: MP08 to MP30 MC08 to MC3 153.8 7 5.83 0.73 149 19.7 9 1.8 35.17 55 1.85 47 1.77 45 MP40 to MP3 MC40/MC50 0.19 Dia. 5 7.1 1 7.1 1 Mounting Holes 0.9/18 Drilling of the Door 10.3 70 0313094.8 7 0.57 15 153 5.83 149 1.8 35 1.0 7 Mounting 1.48 Holes 38 0.19 Dia. 5 7.1 1 7.1 1 0.9 18.7 9 Note: Refer to shop drawings for verification. Door Interlock Rear Cutout 0313095 031309 0.15 4 0.79 0 0.15 4 0313097 14. 30 0. 0 0.1 3 14.5/38 MP30 9.4/748 MP50/MC50 38.4/978 MP3 1.9 43 0.1 3 Circuit Breaker Base Mounting Holes 17.5 445.3 0 Note: The door interlock can be mounted on either the right side or the left side of the circuit breaker. Dimensions: inch mm 4

Circuit Breaker Dimensions External Neutral Sensor MP08 to MP0, MC08 to MC0 MP5/MP30/MP40, MC3/MC40 0313098 0.7 18 1.75 45 0.7 18 3.15 1.75 45 0.5 Dia. 14 0313099 0.39/10 MP08 to MP1 MC08 to MC1 0.79/0 MP0/MC0 1.73 44 0.79 0.30 10 3.94 100.3 0 1.75 45 0.7 18 0.78 0 4.7 10 1.8 4.9 74 0313100 0.7 18 1.75 45 0.7 18 3.15 1.75 45 0.5 Dia. 14 0313101 0.79/0 MP5/MP30/MC3 1.18/30 MP40/MC40 3.31 84 0.79 0.30 10 3.94 100.3 0 1.75 45 0.7 18 0.78 0 4.7 10 1.8 4 4.5 114 MP50 to MP3 031310 0.58 15 1.17 30.11 54.35 0 3.13 7.47 190.35 0 8. 0 0.54 14 0.58 15 0313103.7 10 1.57 40 0.8 17.5 0.78 3.5 89.5 9.1 / 9.41 35 / 40.19 5 0 7.84 00 4.7 10 0313104 1.17 30 0.98 5 = = = 0.47 Dia. Ø1 = = = 7.84 00 = 0.58 15 Dimensions: inch mm 47

Circuit Breaker Dimensions MP08 MP1 MP1 Fixed Mounting 3-Pole 0313105 0313107 0.43 11 4.53 115 14.88 378 4.53 115 0.98 5 3.15 17.4 438 15.75 400 1.1 4 3.35 85 0.98 5 0.47 Dia. 1 (4) Mounting Holes 0.44 Dia. / Ø11 0.43 11 0313108 031310.83 7 1.18 / 30 Min..3 / 0 Max. 0.5 Dia. 1,7 4.53 115 0.3 1 4.53 115 3.35 85 Necessary Space for Removing the Arc Chutes 3.15 5.91 150 9.17 33.8 8 Cell (Insulation Not Required) 11.14 83 0.39 10 4.41 11.08 53 0.71 18 0.9 17,5 1 5,4 5.59 14 3.15 1.57 40 Min. 15.78 401 0.19 3 1.9 43 0.49 1,5 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #88 378 for verification. Vertical terminals are optional for MP08 MP1 circuit breakers. 4-Pole 0313109 0313111 0.43 11 0.98 5 4.53 4.53 4.53 3.35 115 115 3.15 115 85 0.3 0.47 Dia. 1 Ø1 19.4 493 1.8 553 0. 515 (4) Mounting Holes 0.44 Dia. / Ø11 0.43 11 0313110 031311.83 7 1.18 / 30 Min..3 / 0 Max. 3.15 5.91 150 4.53 115 9.17 33.8 8 4.53 115 0.39 10 4.41 11.08 53 4.53 115 3.35 85 Cell (Insulation Not Required) 11.14 83 0.71 18 0.5 Dia. Ø1,7 Necessary Space for Removing the Arc Chutes 0.9 17,5 1 5,4 5.59 14 3.15 1.57 40 Min. 15.78 401 0.19 3 1.9 43 0.49 1,5 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #91 378 for verification. Vertical terminals are optional for MP08 MP1 circuit breakers. Dimensions: inch mm 48

Circuit Breaker Dimensions MP08 MP1 MP1 MC08 MC1 Drawout Mounting 3-Pole 0313113 0313115 0.98 5 4.53 115 3.15 4.53 115 1.87 48 0.47 Dia. 1 031310 0313114 0.5 Dia. 1,7 9.5 1.77 43 45 Withdrawn Position 4.53 115 0.3 1 4.53 115 Disconnected Position 14.1 31 1.87 48 Cell (Insulation Not Required) 0.98 5 0.39 10 0.9 18 1 5 17.3 440 Min. Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #88 378 for verification. Vertical terminals are optional for MP08 MP1 MC08 circuit breakers..17 55 1.8 35 17.14 435 (4) Mounting Holes 0.44 Dia./ 11.17 55 3.98 101 4.1 107.89 175 11.81 300 3.35 85 13.78 350 4.41 11 3. 9 0.49 13 5.98 15 3.15 3.3 8 1.5 4 0.49 13 4-Pole 0313117 0313119 0.98 5.75 70 4.53 4.53 4.53 1.87 115 115 3.15 115 47,5 0.3 0.47 Dia. 1 Ø1 1.73 45 1.89 55 1.5 550 (4) Mounting Holes 0.44 Dia. / Ø11.17 55 0313118 031310 9.5 1.77 43 45 4.53 115 Withdrawn Position 4.53 115 Disconnected Position 3.98 101 4.1 107 14.1 31 4.53 115 Cell (Insulation Not Required).89 175 11.81 300 3.35 85 13.78 350 0.98 5 0.39 10 4.41 11 3. 9 0.49 13 1.87 47,5 0.5 Dia. Ø1,7 0.9 18 1 5 5.98 15 3.15 3.3 8 1.5 4 0.49 13 17.3 440 Min. Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #91 381 for verification. Vertical terminals are optional for MP08 MP1 MC08 circuit breakers. Dimensions: inch mm 49

Circuit Breaker Dimensions MP0 Fixed Mounting 3-Pole 031311 0.5 Dia. 14 4.53 115 0.79 0 4.53 115 3.35 85 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #88 379 for verification. Necessary Space for Removing the Arc Chutes 03131 14.88 378 17.4 438 031313 3.15 Cell (Insulation Not Required) 1.57 40 Min. 4.53 115 1.75 44,5 15.78 401 (4) Mounting Holes 0.44 Dia. / Ø11 5.98 15 3.15 0.43 11 15.75 400 1.1 4 0.43 11.83 7 1.18 / 30 Min..3 / 0 Max. 5.91 150.8 8 14.98 3,5 0.71 18 0.1 3 1.75 44,5 1.9 43 4-Pole 031314 0.79 0 4.53 115 4.53 115 4.53 115 3.35 85 0.5 Dia. Ø14,3 Necessary Space for Removing the Arc Chutes Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #91 379 for verification. 031315 19.4 493 1.8 553 031313 3.15 Cell (Insulation Not Required) 1.57 40 Min. 4.53 115 1.75 44,5 15.78 401 (4) Mounting Holes 0.44 Dia. / Ø11 5.98 15 3.15 0.43 11 0. 515 0.43 11.83 7 1.18 / 30 Min..3 / 0 Max. 5.91 150.8 8 14.98 3,5 0.71 18 0.1 3 1.75 44,5 1.9 43 Dimensions: inch mm 50

Circuit Breaker Dimensions MP0 MC0 Drawout Mounting 3-Pole 031317 0.5 Dia. 14 4.53 115 0.79 0 4.53 115 1.87 48 Withdrawn Position Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #88 379 for verification. 031319 9.5 1.77 43 45 Disconnected Position 14.1 31 Cell (Insulation Not Required) 031318.17 55 1.8 35 17.14 435 (4) Mounting Holes 0.44 Dia./ 11.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 4.53 115 1.75 45 1.75 45 5.98 15 3.15 3.3 8 1.5 4 0.7 18 17.3 440 Min. 4-Pole 0313130 0313131 0.79 0 4.53 115 4.53 115 1.89 55 4.53 115 1.87 47,5 0.5 Dia. Ø14,3 031319 9.5 1.77 43 45 Withdrawn Position Disconnected Position 14.1 31 Cell (Insulation Not Required) Note: Suitable for continuous operation at 100% rating in a minimum cubicle space 17.5 in. (440 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. Ventilation is not required. Refer to shop drawing #91 38 for verification. (4) Mounting Holes 0.44 Dia. / Ø11 4.53 115 1.75 45 5.98 15 3.15 3.3 8 17.3 440 Min..75 70 1.73 45 1.5 550.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.5 4 0.7 18 Dimensions: inch mm 51

Circuit Breaker Dimensions MP5 MP30 Fixed Mounting 3-Pole 0313133 0.5 Dia. 14 5.85 149 0.5 5.85 149.01 51 0.5 Necessary Space for Removing the Arc Chutes Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) at top and bottom. Refer to shop drawing #88 3 for verification. 0313134 14.88 378 17.4 438 0313138 3.15 Cell (Insulation Not Required) 1.57 40 Min. 1.75 44,5 (4) Mounting Holes 0.44 Dia. / Ø11.8 58 10.4 0 15.78 401 0.43 11 15.75 400 1.1 4 0.43 11.83 7 5.91.8 150 8 13.95 354,5 1.75 44,5 4.7 10 1.13 9.4 57 0.4 4-Pole 031313 0.5,35 0.5 Dia. Ø14,3 5.85 149 4.55 115 5.85 149.01 51 0.5,35 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) at top and bottom. Refer to shop drawing #91 3 for verification. Necessary Space for Removing the Arc Chutes 0313137 19.4 493 1.8 553 0313138 3.15 Cell (Insulation Not Required) 1.57 40 Min. 1.75 44,5 15.78 401 (4) Mounting Holes 0.44 Dia. / Ø11.8 58 10.4 0 0.43 11 0. 515 0.43 11.83 7 5.91.8 150 8 13.95 354,5 1.75 44,5 4.7 10 1.13 9.4 57 0.4 Dimensions: inch mm 5

Circuit Breaker Dimensions MP5 MP30 Drawout Mounting 3-Pole 0313139 0.5 Dia. 14 5.75 14 0.5 5.75 14 0.5 17 0.5 0313144 Withdrawn Position 9.5 1.77 43 45 Disconnected Position 14.1 31 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 1 in. (530 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) at top and bottom. Refer to shop drawing #88 3 for verification. Cell (Insulation Not Required) 0313140.8 58 1.75 44 17.3 440 Min. (4) Mounting Holes 0.44 Dia./ 11 4.7 10 10.4 0.17 55 1.8 35 17.14 435.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.14 9 1.30 33 0.71 18 031314 4-Pole 0.5,35 0.5 Dia. Ø14,3 5.35 13 4.9 15 5.75 14 0.5 17 0.5,35 0.5,35 0.5 1,5 Withdrawn Position Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 5.5 in. (45 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) at top and bottom. Refer to shop drawing #91 3 for verification. 0313144 9.5 1.77 43 45 Disconnected Position 14.1 31 0313143 1.89 55 Cell (Insulation Not Required).8 58 1.75 44 (4) Mounting Holes 0.44 Dia./ Ø11 10.4 0 17.3 440 Min..75 70 1.73 45 1.5 550.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 4.7 10 1.14 9 1.30 33 0.71 18 Dimensions: inch mm 53

Circuit Breaker Dimensions MC3 Drawout Mounting 3-Pole 0313145 0.5 0.53 Dia. 14.10 155.10 155.55 5 0.5 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (50 mm) h. by 5.5 in. (40 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) at bottom. Refer to shop drawing #89 074 for verification. 0313147 Withdrawn Position 9.5 1.77 43 45 Disconnected Position 14.1 31 Cell (Insulation Not Required) 031314.8 58 1.75 44 17.3 440 Min. 10.4 0 (4) Mounting Holes 0.44 Dia./ 11 4.7 10.75 70 1.5 550 1.73 45.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.14 9 1.30 33 0.71 18 Dimensions: inch mm 54

Circuit Breaker Dimensions MP40 MP50 Fixed Mounting 3-Pole MP40 0313148 1.14 9 0.5 Dia. 14 9.7 48 0.5 0.5 13 9.7 48 1.14 9 5.59 14 0313149 0.5,35 1.14 9 9.7 48 0.78 0 9.7 48 5.59 14 1.14 9 0313150 MP50 0.5,35 1.14 9 9.7 48 0.5 13 9.7 48 1.14 9 5.59 14 0.5,35 Necessary Space for Removing the Arc Chutes 0313151 9.88 759 3.4 819 031315 Cell (Insulation Not Required) 1.75 44,5 1.57 40 Min. 0.43 11 31.57 30.71 7 (4) Mounting Holes 0.44 Dia. / Ø11 0.43 11 1.18 / 30 Min..3 / 0 Max..83 7 5.91.8 150 8 14.35 34,5.8 58 1.75 44,5 4.7 10 15.78 401 10.4 0 1.13 9 0.4.4 57 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 34 in. (870 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) both at top and bottom. Refer to shop drawing #88 381 for verification. Dimensions: inch mm 55

Circuit Breaker Dimensions MP40 MP50 MC50 MC50 Drawout Mounting 3-Pole MP40 MC50 0313153 031315 0.5 0.5 Dia. 14 9.94 53 9.94 53 1. 3 3.94 100 0.5 0313157 0313155 0313154 9.5 43 0.5 0.5 Dia. 14 MP50 MC50 0.5 0.5 Dia. 14 Withdrawn Position Disconnected Position 1.77 45 14.1 31 9.94 53 9.94 53.8 58 9.94 53 0.5 9.94 53 1. 3 Cell (Insulation Not Required) 3.94 100 0.5 Dia. 14 1.75 45 1. 3 3.94 100 0.5 () Mounting Holes 0.44 Dia./ 11 19.1 485 Min. 10.4 0 4.7 10.3 0 13.78 350 3.08 815 13.78 350.17 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.0 7 1.14 9 3.08 78 Note: Suitable for continuous operation at 100% rating in a minimum cubicle space in. (0 mm) h. by 34 in. (870 mm) w. by 14.5 in. (30 mm) d. with a ventilation of 30 sq. in. (00 cm ) both at top and bottom. Refer to shop drawing #88 381 for verification. Dimensions: inch mm 5

Circuit Breaker Dimensions MP40 MP50 Drawout Mounting 0313158 4-Pole (Not UL Listed) 0.5 Dia. Ø14,3 9.94 5,5 0.5,35 9.94 5,5 9.94 5,5 1. 3 3.94 100 0.5,35 0313159 MP40 0.5,35 0.5 Dia. Ø14,3 9.94 5,5 9.94 5,5 9.94 5,5 0.5,35 3.94 100 1. 3 MP50 031310 0.5,35 9.94 5,5 9.94 5,5 9.94 5,5 1. 3 3.94 100 0.5,35 0.5 Dia. Ø14,3 Withdrawn Position Disconnected Position 031311 41.38 1051 03131 9.5 43 1.77 45 14.1 31 Cell (Insulation Not Required).8 58 0.5 Dia. 14 1.75 45 () Mounting Holes 0.44 Dia. / Ø11 19.1 485 Min. 10.4 0 4.7 10 1.57 40 18.70 475 41.14 1045 18.70 475.3 0 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.0 7 1.14 9 3.08 78 Note: Refer to shop drawing #91 384 for verification. Dimensions: inch mm 57

Circuit Breaker Dimensions MP3 Drawout Mounting (Not UL Listed) 031313 3-Pole 0.5 13.78 350 13.78 350.00 51 4. 118 0.5 0.5 Dia. 14 Note: Refer to shop drawing #88 38 for verification. Withdrawn Position 9.5 1.77 43 45 Disconnected Position 14.1 31 031314 031315 Cell (Insulation Not Required).8 58 1.75 45 () Mounting Holes 0.44 Dia./ 11 4.7 10 19.1 485 Min. 10.4 0 3.08 78 1.57 40 18.70 475 41.14 1045 18.70 475.1 55 3.98 101 4.1 107.89 175 3.35 85 17.4 448 1.75 45 1.0 7 1.14 9 Dimensions: inch mm 58

Circuit Breaker Dimensions Mechanical Interlocks for Drawout or Fixed Circuit Breakers Connecting Links for Two Stack-mounted Circuit Breakers Drawout Mounting Fixed Mounting 0313174 1.9 50 0313175 1.9 50 1.57 40 4.9 15 35.9 900 Max. 35.9 900 Max..03 5 1.17 30 0.19 5 4.9 15 35.9 900 Max. 0.54 14 1.17 30 153.39 13.54 5.5 1 (*) 1.7 45 Circuit Breaker Basis for Rating: MP40 (3-Pole) to MP3, MC40 (3-Pole) Circuit Breaker Basis for Rating: MP08 to MP30 (4-Pole), MC08 to MC3 3.1 8 (*).8 175 4.11 105 1.17 30 (*) 7.05 Circuit Breaker Basis 1 1.17 /.35 30 Min./ 0 Max. 1.7 44 (*) Dimensions: inch mm 59

Circuit Breaker Dimensions Connecting Links for Three Stack-mounted Circuit Breakers Drawout Mounting Fixed Mounting 031317 0313177 1.9 50 1.57 40 7.05 1 35.9 900 Max..03 5.35 0 0.19 5 7.05 1 35.9 900 Max. 0.54 14.35 0 50 1.9 50 1.57 40 1.9 50 1.9 50.54 5 7.05 1 (*).5 1 1.7 45 35.9 900 Max. 35.9 900 Max..03 5 Circuit Breaker Basis for Ratings: MP40 (3-Pole) to MP3, MC40 (3-Pole) Circuit Breaker Basis for Ratings: MP08 to MP30 (4-Pole), MC08 to MC3.35 0.35 0 0.19 5.8 175 4.11 105 1.17 30 7.05 1 (*) 35.9 900 Max. Circuit 7.05 Breaker 1 Basis 1.17 /.35 30 Min. / 0 Max. 0.54 14 (*).35 0.43 Mechanical Interlocks for Drawout or Fixed Circuit Breakers Cables for Two Side-by-Side Circuit Breakers.5 ft. m Max. 0313178 r= 4.7 r= 10 Min. 7.87 00 Min. r= 4.7 r= 10 Min. Mounted on Rails Mounted on Backplate Dimensions: inch mm (Except as otherwise indicated) 0

3 4 3 4 5 5 1 1 7 7 8 0 8 0 9 C D E F 9 C D E F 900 1900 Circuit Breaker Dimensions DC150 Data Concentrator 4 Ø.0 4 Ø5 0313179 OK error N 1 N com 4V BBus com error JBus A B A B N 1 N 3.94 100 5.47 139 4.9 15 3.94 100 7.0 193 1.97 50 SC150 Indication and Control Interface 03131 1.97 50 4.13 105.50 15 Ø.0 Ø5. 71 4.9 15.89 175 Dimensions: inch mm 1

Appendix Routine Maintenance Guidelines DANGER HAZARD OF ELECTRICAL SHOCK, BURN OR EXPLOSION. Turn OFF all power supplying the equipment before installing or removing circuit breaker. Failure to observe these precautions will cause death, personal injury or electrical shock. CAUTION HAZARD OF EQUIPMENT DAMAGE. Since circuit breakers contain factory-sealed and calibrated elements. Do not break seal. In case of malfunction, repairs must be made at a Square D factory or by an authorized company representative. Failure to observe this precaution can cause equipment damage. Recommended Inspection Intervals MASTERPACT circuit breakers are designed to be maintenance free (see page 4). However, all equipment with moving parts requires periodic inspection to ensure optimum performance and reliability. It is recommended that the circuit breakers be routinely inspected six months after installation, followed by an annual inspection. Intervals can vary depending on particular use and experience. Inspection of Circuit Breaker Terminals Inspect terminals; if there is discoloration due to overheating, the joint should be disassembled and the surface cleaned before reinstallation. It is essential that electrical connections are made carefully in order to prevent overheating. Check for terminal tightness. Inspection of Main Contacts The arc chutes are easily removed to allow access to the main contacts and to the wear indicator. The wear indicator consists of a groove located within the contacts support (see page 3). When the circuit breaker is closed, this groove is entirely covered up by the moving contacts. Over time, the wear of the contacts will make the groove appear. When the groove is fully visible, replace the breaker or have an authorized service center change the contacts. Inspection of Clusters Totally maintenance free, they have to be replaced only after overheating due to a defective connection or after a major fault. Inspection is advised when checking the terminal connections. Cleaning Remove any dust and dirt that may have accumulated on the circuit breaker surface and terminals. Mechanical Checks For long periods circuit breakers may not be required to operate on overload or short-circuit conditions. Therefore it is essential to operate the circuit breaker periodically to avoid mechanical gumming.

Appendix Insulation Resistance Tests When circuit breakers are subjected to severe operating conditions, an insulation resistance test may be performed as indicated in NEMA standard publication No. AB4-1991. An insulation resistance test is used to determine the quality of the insulation between phases and phase-toground. The resistance test is made at a dc voltage higher than the rated voltage to determine the actual resistance of the insulation. The most common method employs a "megger" type instrument. A 1000-volt instrument will provide a more reliable test because it is capable of detecting tracking on insulated surfaces. Investigate resistance values below 1 megohm. The insulation test shall be made: Between line and load terminals of individual poles with the circuit breaker contacts open Between adjacent poles and from poles to the metallic supporting structure with the circuit breaker contacts closed This test may be made with the circuit breaker in place after the line and load conductors have been removed, or with the circuit breaker bolted to a metallic base which simulates the in-service mounting. Electrical Tests These tests require equipment for pole resistance measurement and for overcurrent and instantaneous tripping in accordance with NEMA Standard publication No. AB4. They are not within the scope of normal field operation. 3

Appendix Endurances A Endurance Without Maintenance MASTERPACT 08 1 1 0 5 30-3 40 50 3 MP or MC Mechanical 1,500 10,000 10,000 10,000 10,000 10,000 5,000 5,000 5,000 Electrical 4 Vac 10,000 10,000 10,000 9,000 8,000 4,000 3,000 3,000,000 00 Vac 10,000 10,000 10,000 7,000,000,00,500,500 1,500 B Endurance With Service Maintenance Electrical (4 Vac) or Mechanical 0,000 0,000 0,000 15,000 15,000 15,000 10,000 10,000 10,000 C Endurance Required by Standards Frame size 0 100 100 000 500 3000 4000 5000 300 UL489 Mechanical 3,500,000,000,000,000 1,500 1,500 1,500 1,500 Electrical 500 500 500 500 500 400 400 400 400 ANSI Mechanical 1,500 NS 4,000 4,000 NS 1,500 1,500 NS NS Electrical,0 NS 0 0 NS 400 400 NS NS Important Notice: All endurances given are based on normal operating conditions and conventional tests: Closing and opening operations at rated current Power factor: 0.75 0. As actual conditions differ, use these values only as inspection guidelines and periodically check contact wear. Under normal operating conditions of use, as determined by UL 489 or ANSI Standards (see table C) and controlled by tests, MASTERPACT circuit breakers do not require maintenance. However, these circuit breakers exceed, without maintenance and additional costs, the endurances required by standards. See tables A and C. Service maintenance by a field service representative will extend the endurance according to table B. This service can be performed on site and consists in changing contacts, arc chutes and some other parts. Example: MP1 at 4 V requires no maintenance before 10,000 cycles (mechanical or electrical). Endurance may be increased after servicing at 10,000 operations. 4

Appendix IEC 947- Interrupting Ratings In addition to UL 489 and ANSI C37-13, MASTERPACT circuit breakers comply with the IEC 947- Standard as per the table below. For further information, contact a sales representative. Type Ampere Interrupting Ratings 3-Pole Rating (A) UL489 IEC 947- RMS Symmetrical Amps 4 Vac 00 Vac Short-time 440 Vac 90 Vac Icu Ics Icu Ics Standard Interrupting Rating MP08 H1 0 5 ka 5 ka 50 ka 5 ka 5 ka 5 ka 5 ka MP1 H1 100 5 ka 5 ka 50 ka 5 ka 5 ka 5 ka 5 ka MP1 H1 100 5 ka 5 ka 50 ka 5 ka 5 ka 5 ka 5 ka MP0 H1 000 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka MP5 H1 500 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka MP30 H1 3000 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka 75 ka MP40 H1 4000 100 ka 100 ka 100 ka 100 ka 100 ka 85 ka 85 ka MP50 H1 5000 100 ka 100 ka 100 ka 100 ka 100 ka 85 ka 85 ka MP3 H1 300 (1) 100 ka 100 ka 100 ka 100 ka 100 ka 85 ka 85 ka High Interrupting Rating MP08 H 0 100 ka 5 ka 50 ka 100 ka 100 ka 85 ka 85 ka MP1 H 100 100 ka 5 ka 50 ka 100 ka 100 ka 85 ka 85 ka MP1 H 100 100 ka 5 ka 50 ka 100 ka 100 ka 85 ka 85 k A MP0 H 000 100 ka 75 ka 75 ka 100 ka 100 ka 85 ka 85 ka MP5 H 500 100 ka 75 ka 75 ka 100 ka 100 ka 85 ka 85 ka MP30 H 3000 100 ka 75 ka 75 ka 100 ka 100 ka 85 ka 85 ka MP40 H 4000 15 ka 100 ka 100 ka 150 ka 15 ka 85 ka 85 ka MP50 H 5000 15 ka 100 ka 100 ka 150 ka 15 ka 85 ka 85 ka MP3 H 300 (1) 150 ka 100 ka 100 ka 150 ka 15 ka 85 ka 85 ka (1) Not UL Listed. 5

Appendix IEC 947- Ratings Auxiliary and Position Switches Voltage (V) Auxiliary Switch Overcurrent Ready to Position Trip Switch Close Switch Switches OF O OFSUP SDE PF CE/CD/CT 50/0 Hz 110 15 40 10 10 10 10 10 10 3 10 5 5 4 10 00 3 3 3 DC 48 5 3 3 3 3 3 15 3 0.5 0.5 0.3 0.3 0.5 50 3 0.5 0.5 0.15 0.15 0.5 500 0.5 OF: Heavy Duty O: Standard OFSUP: 4 Additional CE: Connected CD: Disconnected CT: Test Spring Charging Motor Rated Voltage (V) UL 489 Listed IEC 947-0 Hz 10 50/0 Hz 100-17 40 00-40 DC 4 DC 4-30 Closing Coil Rated Voltage (V) 48 48-0 15 100-15 UL 489 Listed IEC 947-0 Hz 10 50/0 Hz 110-17 40 0-50 DC 4 DC 4 Shunt Trip Rated Voltage (V) 48 48 15 15 50 50 UL 489 Listed IEC 947-0 Hz 10 50/0 Hz 110-17 40 0-50 4 440-4 DC 4 DC 4 Undervoltage Trip Rated Voltage (V) 48 48 15 15 50 50 UL 489 Listed IEC 947-0 Hz 10 50/0 Hz 110-17 40 0-50 4 440-4 DC 4 DC 4 48 48 15 15 50 50

Notes 7

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Notes 9

Notes 70

Notes 71

Notes 7

Square D Company PO Box 309, 3700 Sixth St SW Cedar Rapids, IA 540-309 USA Field Services: 1-0-34-003 www.squared.com POWERLOGIC, Square D and are registered trademarks of Square D Company. MASTERPACT, COMPACT and MULTI 9 are registered trademarks of Schneider Electric. DIGIPACT is a registered trademark of Merlin Gerin. MODBUS is a registered trademark of Schneider Automation. All other trademarks are the intellectual property of their respective companies. 031CT9501R November 98 Printed in USA 1998 Square D All Rights Reserved