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Instruction Bulletin48049-071-03
01/2002Cedar Rapids, IA, USA
MASTERPACT® MP, MF and MC Circuit Breakers
Retain for future use.
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Instruction Bulletin 01/2002
© 1998–2002 Schneider Electric All Rights Reserved.2
NOTICE Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service or maintain it. The following special messages may appear throughout this bulletin or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.
Provides additional information to clarify or simplify a procedure.
PLEASE NOTE Electrical equipment should be serviced only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. This document is not intended as an instruction manual for untrained persons.
FCC NOTICE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.
DANGERDANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not avoided, can result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not avoided, can result in minor or moderate injury.
CAUTION
CAUTION, used without the safety alert symbol, indicates a potentially hazardous situation which, if not avoided, can result in property damage.
�
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Table of Contents
© 1998–2002 Schneider Electric All Rights Reserved 3
TABLE OF CONTENTS
SECTION 1: INSTALLATION Recommendations for Storing ..................................................................... 5Temperature Limits ................................................................................ 5Circuit Breaker Status ............................................................................ 5Covering ................................................................................................. 5Maximum Stacking ................................................................................. 5
Identifying the Circuit Breaker ...................................................................... 6Unpacking .................................................................................................... 7
MP40 to MP63 Drawout-mounted Circuit Breakers ............................... 8Handling ....................................................................................................... 9
MP08 to MP30 and MC08 to MC20 Circuit Breakers ............................. 9MC32 Circuit Breakers ......................................................................... 10MP40 to MP63 and MC40 to MC50 Circuit Breakers ........................... 11MF12, MF20 and MF30 Circuit Breakers ............................................. 12
Attaching Rear Terminals .......................................................................... 13Mounting .................................................................................................... 14
Cable Connection ................................................................................. 14Bus Bar Connection ............................................................................. 15
Control Wiring ............................................................................................ 16Fixed-mounted Circuit Breakers ........................................................... 16Drawout-mounted Circuit Breakers ...................................................... 17
SECTION 2: OPERATION Disconnecting and Connecting Instructions ............................................... 19Disconnecting Instructions ................................................................... 20Installing the Circuit Breaker in the Stationary Assembly ..................... 21Connecting Instructions ........................................................................ 22
Operating ................................................................................................... 23Charging Instructions ........................................................................... 23Closing Instructions .............................................................................. 23Opening Instructions ............................................................................ 24Resetting Instructions ........................................................................... 24
Locking ...................................................................................................... 24Locking by Key Interlock ...................................................................... 24Locking by Padlock .............................................................................. 25Locking by Door Interlock ..................................................................... 25Spring Interlock .................................................................................... 26
SECTION 3: CONTROL UNIT TYPES STR 18 M Control Unit ............................................................................... 28STR 28 D Control Unit ............................................................................... 30STR 38 S Control Unit ............................................................................... 32STR 58 U Control Unit ............................................................................... 34Control Unit Options .................................................................................. 36
Pre-trip and Overload Indication Option ............................................... 36Thermal Memory Limitation .................................................................. 37Ammeter Option ................................................................................... 38Fault Indication Option ......................................................................... 39Battery Option ...................................................................................... 40Load Monitoring Option ........................................................................ 40Segregated Alarm Switch Option ......................................................... 41Ground-fault Protection Option ............................................................ 41Zone-selective Interlocking Option ....................................................... 42Transmit Data from Trip Unit Option .................................................... 42
Document Subtitle (In header) 48049-071-03Table of Contents 01/2002
© 1998–2002 Schneider Electric All Rights Reserved4
SECTION 4: MAINTENANCE Routing Inspections .................................................................................... 44Electrical Maintenance ............................................................................... 44Check Arc Chutes ...................................................................................... 45
Check Contacts .................................................................................... 45Wiring Diagram .......................................................................................... 46
SECTION 5: SET-UP GUIDE Minimum Enclosure .................................................................................... 48Clearance Information ................................................................................ 49Stacking Configurations .............................................................................50Cumulative Loading ................................................................................... 51Temperature Derating ................................................................................ 52Power Dissipation ...................................................................................... 53Resistance ................................................................................................. 53Altitude Correction Factors ......................................................................... 53
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 5
SECTION 1— INSTALLATION
• Hex-head wrenches
• Straight-blade screwdrivers (large and small)
• Wire stripper
RECOMMENDATIONS FOR STORING
Do not store circuit breakers in a corrosive or salt-air environment.
Temperature Limits Store from -60° F (-50° C) min. to +160° F (+70° C) max.
Circuit Breaker Status Store with:
• Main contacts open
• Spring discharged
• Connected position
Covering Store the circuit breaker only in the original shipping carton or other protective weatherproof covering.
Maximum Stacking
DANGERHAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
0631
3219
0631
3220 MP08 to MP30
≤ 3
MP40 to MP63≤ 2
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved6
IDENTIFYING THE CIRCUIT BREAKER
Figure 1: Location of Markings on Circuit Breaker
Figure 2: Location of Markings on Stationary Assembly
0631
3221
Serial:Control diagram no.:Sensor. . .In:Instantaneous override:
Electrical accessories identification label (fixed mounting)
Name label giving rating, interrupting ratings and rated voltage
Manufacturing no.Wiring diagram no.Sensor ratingInstantaneous pickup
0631
3222
Circuit breaker stationary assembly
A max. Accepts frame size: MP/MC
Wiring diagram no.
Serial
Frame size
Type
Standard or specific diagram no.
Manufacturing no.
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 7
UNPACKING
MP08 to MP30 and MC08 to MC32 Fixed-mounted Circuit Breakers
The circuit breaker stationary assembly is secured to its shipping pallet with four bolts, nuts and washers. However, on the drawout mounting, withdrawal of the circuit breaker is required to access the hardware.
Disconnect and remove the circuit breaker from the stationary assembly (refer to Disconnection Instructions, page 20).
Drawout-mounted Circuit Breaker with Stationary Assembly
Figure 3: Unpacking Drawout-mounted Circuit Breaker
Drawout-mounted Circuit Breaker without Stationary AssemblyCircuit breaker is delivered upside down. Place another pallet next to shipping pallet. Rotate circuit breaker onto terminals, then onto its bottom on other pallet.
Figure 4: Unpacking Drawout-mounted Circuit Breaker Delivered without Stationary Assembly
0631
3223
Connected
Disconnected
0631
3225
0631
3226
0631
3224
Remove four bolts, nuts and washers.
Remove four bolts, nuts and washers.
0631
3227
0631
3228
0631
3231
0631
3232
Remove four bolts, nuts and washers.
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved8
Stationary Assembly OnlyIf present, remove strapping tape holding the clusters.
Figure 5: Unpacking Stationary Assembly
MP40 to MP63 Drawout-mounted Circuit Breakers
1. Remove four bolts, nuts and washers.
2. Position another pallet and rotate circuit breaker.
3. Remove plastic shipping caps.
Figure 6: Unpacking Stationary Assembly
Remove four bolts, nuts and washers.06
3132
29
0631
3230
0631
3233
1
2 1 2
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 9
HANDLING
MP08 to MP30 and MC08 to MC20 Circuit Breakers
Both the circuit breaker frame and stationary assembly have notched lifting flanges for lifting. To reduce the total weight and ease installation of the stationary assembly, remove the circuit breaker from the stationary assembly (refer to Disconnecting Instructions, page 20). To lift the circuit breaker using a lifting device, use an overhead lifting device attached to the lifting flanges.
DANGERHAZARD OF CIRCUIT BREAKER FALLING
• Be sure equipment has adequate lifting capacity for the unit being lifted.
• Follow manufacturer’s instructions for use of lifting equipment.
• Wear hard hat, safety shoes and heavy gloves.
Failure to follow this instruction will result in death or serious injury.
Table 1: 3-pole Circuit Breaker Weights
Circuit Breaker Type
Stationary Assemblylbs. (kg)
Circuit Breakerlbs. (kg)
Terminals
lbs. (kg)
MP08 51 (23) 102 (46) 13 (6)*
MP12 51 (23) 102 (46) 13 (6)*
MP16 51 (23) 102 (46) 13 (6)
MP20 60 (27) 121 (55) 36 (16)
MP25 110 (50) 176 (80) 89 (40)
MP30 110 (50) 176 (80) 89 (40)
MC08 51 (23) 102 (46) 13 (6*)
MC16 51 (23) 102 (46) 13 (6)
MC20 60 (27) 121 (55) 36 (16)
*Optional terminals.
Figure 7: Using the Lifting Flanges
Figure 8: Using a Lifting Sling
0631
3234
Circuit Breaker Stationary assembly
06313235
Cable slings 0.40 in. (10 mm) dia. max.
Circuit Breaker Stationary assembly
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Do not let the forks of a fork lift protude past the rear of the circuit breaker.
Failure to follow this instruction can result in equipment damage.
Figure 9: Using an Electrical or Mechanical Platform Lift
0631
3236
Circuit Breaker
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved10
MC32 Circuit BreakersThe circuit breaker and its stationary assembly have lifting flanges for lifting. Before handling the circuit breaker, remove it from the stationary assembly. To lift the circuit breaker as shown, use an overhead lifting device attached to the notched lifting flanges.
DANGERHAZARD OF CIRCUIT BREAKER FALLING
• Be sure equipment has adequate lifting capacity for the unit being lifted.
• Follow manufacturer’s instructions for use of lifting equipment.
• Wear hard hat, safety shoes and heavy gloves.
Failure to follow this instruction will result in death or serious injury.
Figure 10: Using a Lifting Sling for Circuit Breaker
0631
3237
Compensation bar not supplied; hooks supplied upon request.
Table 2: 3-pole Circuit Breaker Weights
Type StationaryAssembly
Circuit Breaker
Terminals
lbs. (kg) lbs. (kg) lbs. (kg)
MC32 132 (60) 198 (90) 88 (40)
Figure 11: Using a Lifting Sling for Stationary Assembly
0631
3238
Cable slings: 0.40 in.[10 mm] dia. max.
Rod dia.: 0.48 in. [12 mm]
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Clearance inside the switchboard is minimal. To avoid damage to the load terminals, be sure they clear the lower edge of the switchboard enclosure before attempting installation.
Failure to follow this instruction can result in equipment damage.
Figure 12: Using an Electrical or Mechanical Platform Lift
Assembly
3.92 in. (100 mm) max.
H = 22 in.(559 mm)
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 11
MP40 to MP63 and MC40 to MC50 Circuit Breakers
To lift the circuit breaker as shown below, use an overhead lifting device attached to the notched lifting flanges. Compensation bars not supplied, hooks can be supplied upon request.
DANGERHAZARD OF CIRCUIT BREAKER FALLING
• Be sure equipment has adequate lifting capacity for the unit being lifted.
• Follow manufacturer’s instructions for use of lifting equipment.
• Wear hard hat, safety shoes and heavy gloves.
Failure to follow this instruction will result in death or serious injury.
Figure 13: Using a Lifting Sling for Circuit Breaker
0631
3240
Cable slings: 0.40 in. [10 mm] dia. max. 30 in. [800 mm] min.
Table 3: 3-pole Circuit Breaker Weights
Type StationaryAssembly
Circuit Breaker
Terminals
lbs (kg) lbs (kg) lbs (kg)
MP40 198 (90) 264 (120) 88 (40)
MP50 198 (90) 264 (120) 177 (80)
MP63 242 (110) 308 (140) 177 (80)
MC40 198 (90) 264 (120) 88 (40)
MC50 198 (90) 264 (120) 177 (80)
Figure 14: Using a Lifting Sling for Stationary Assembly06
3132
41
Cable slings: 0.40 in. [10 mm] dia. max. 30 in. [800 mm] min.
CAUTIONHAZARD OF EQUIPMENT DAMAGE
• Do not let the forks of a fork lift protude past the rear of the circuit breaker.
• Place a chock as shown. Remove it as soon as the forks lean on the switchboard floor.
Failure to follow this instruction can result in equipment damage.
Figure 15: Using an Electrical or Mechanical Platform Lift
0631
3239
0631
3239
Frame Stationary assembly
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved12
MF12, MF20 and MF30 Circuit BreakersTo lift the circuit breaker as shown, use an overhead lifting device attached to the notched lifting flanges. Compensation bar not supplied, hooks supplied upon request.
DANGERHAZARD OF CIRCUIT BREAKER FALLING
• Be sure equipment has adequate lifting capacity for the unit being lifted.
• Follow manufacturer’s instructions for use of lifting equipment.
• Wear hard hat, safety shoes and heavy gloves.
Failure to follow this instruction will result in death or serious injury.
Figure 16: Using a Lifting Sling (MF12 and MF20 Circuit Breakers)
1
0631
3243
1
Cable slings: 0.40 in. [10 mm] dia. max.
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Clearance inside the switchboard is minimal. To avoid damage to the load terminals, be sure they clear the lower edge of the switchboard enclosure before attempting installation.
Failure to follow this instruction can result in equipment damage.
Figure 17: Using a Lifting Sling (MF30 Circuit Breaker)
0631
3245
Cable slings: 0.40 in. [10 mm] dia. max.
Table 4: 3-pole Circuit Breaker Weights
Typelbs. (kg)
Circuit Breaker lbs. (kg)
Terminalslbs. (kg)
MF12 121 (55) 58 (26)
MF20 176 (80) 76 (34)
MF30 264 (120) 187 (85)
Figure 18: Using an Electrical or Mechanical Platform Lift (Fixed-mounted MF12, MF20 and MF30 Circuit Breaker)
0631
3246
Use a sling to support the circuit breaker.
H = 21 in.[533 mm]
H = 25 in.[635 mm]
MF12 Circuit Breaker
MF20 and MF30 Circuit Breakers
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 13
ATTACHING REAR TERMINALS
Table 5: Circuit Breaker Types and Attachment
Drawout Circuit Breakers Fixed Circuit Breakers Attaching Rear Terminals*
MP08, MP12, MP16 and MC08 to MC16
MP08, MP12, MP16
MP20 and MC20 MP20
MP25 to MP32 MP25 to MP32
MP40 and MC40
MP50, MP63 and MC50 MP50, MP63 and MC50
*Rear terminal must be installed on fixed-mounted and drawout-mounted circuit breakers rated 1600 A and above. The terminals provided with the circuit breaker must be mounted as indicated.
0631
3248
0631
3248
0631
3247
Screws: M10, 2-2/5 in. [60 mm] long.Tightening torque = 375 lb-in (42 N•m).Use 11/16 in. hex-head wrench.
0631
3249
0631
3249
0631
3250
0631
3250
0631
3250
Screws: M10, 2-2/5 in. [60 mm] long.Use 11/16 in. hex-head wrench.Tightening torque = 375 lb-in. (42 N•m).
Fixed-mounted
Drawout-mounted
0631
3254
or
0631
3254
or
0631
3255
0631
3255
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved14
MOUNTING
Distribute weight of the equipment uniformly over a rigid mounting surface (such as crossbeams or a metal floor).
The mounting plate should be perfectly flat. This eliminates any risk of deformation which could interfere with correct operation of the circuit breaker.
Cable Connection
It is essential that mechanical stresses are not applied to the circuit breaker terminal pads if a cable connection is used. Vertical terminal pads are recommended, and should be installed as indicated below.
• With bus bar extensions:
— if the circuit has only a single cable, use method (A).
— if the circuit has several cables, use method similar to (B).
• In all cases, the same general rules apply for cables that apply for bus bars:
— position cable ends correctly before the bolts are inserted, and
— attach cables securely to framework (C).
\
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Distribute weight over a rigid mounting surface.
Failure to follow this instruction can result in equipment damage. Figure 19: Weight Distribution on Mounting Plate
0631
3259
DANGERHAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Carefully follow all instructions for making electrical connections and supporting and clamping bus bars.
Failure to follow this instruction can result in equipment damage.
Figure 20: Cable Connections
0631
3260
A
C
B
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 15
Bus Bar ConnectionBus bar dimensions shown in Table 6, “Bus Bars” have been extrapolated from test data based on UL® 891. They should be used only as a guide and not replace industrial experience or a temperature rise test.
Correct clamping of bus bars depends on, among other things, the torque used to tighten the nuts and bolts. Excessive torque may cause the same problems as insufficient torque.
The bus bars should be adjusted to ensure that the mounting holes (A, see Figure 21, page 15) are aligned with the terminal pads before the bolts are inserted. The bus bar is held by support (B) which is attached to the framework of the switchboard, so that the terminal pads do not have to support the weight of the bus bar. Dimension (C) must be maintained (Table 7, next page) to withstand the electrodynamic stresses between phases in the event of a short circuit.
DANGERHAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
Table 6: Bus Bars
Circuit Breaker Copper Bus Bars
Quantity Dimension in. (mm)
MP08, MC08 1 0.25 x 3.00 (6 x 76)
MP12 2 0.25 x 3.00 (6 x 76)
MP16, MC16 2 0.25 x 3.00 (6 x 76)
MP20, MC20 2 0.25 x 4.00 (6 x 102)
MP25 2 or 4 0.25 x 5.00 (6 x 127)0.25 x 2.50 (6 x 64)
MP30 4 or 3 0.25 x 4.00 (6 x 102)0.25 x 6.00 (6 x 152)
MC32 3 0.25 x 6.00 (6 x 152)
MP40, MC40 4 or 5 0.25 x 5.00 (6 x 127)0.25 x 4.00 (6 x 102)
MP50, MC50 6 or 5 0.25 x 5.00 (6 x 127)0.25 x 6.00 (6 x 152)
MP63 6 0.25 x 6.00 (6 x 152)
Table 7: Tightening Torque
Tightening Torque
Bolt Size Hole Diameter Grooved or Flat Washer Belleville Washer
0.38 in. (10mm) 0.44 in. (11mm) 28 lb-ft (38 N•m) 31 lb-ft (43 N•m)
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Carefully follow all instructions for making electrical connections and supporting end clamping bus bars.
Failure to follow this instruction can result in equipment damage.
Figure 21: Bus Bar Connection
0631
3261
*Dimension C is the maximum distance between circuit breaker horizontal terminals (connection point of the extensions) and the first support or spacer, based on the expected short-circuit current (see Table 8, page 16).
AB
C*
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved16
CONTROL WIRING
Connect each terminal using one stranded #18 to #14 AWG (0.6 to 2.5 mm2) copper wire. Cable strip length: 3/8 in. (9mm).
Fixed-mounted Circuit Breakers 1. Install conductor.
2. Remove transparent shield.
Table 8: Bus Bar Connection
Expected Short-circuit Current (kA rms)
30 50 65 80 100 150
MP08 to MP16 and MC08 to MC16 Circuit Breakers
Dimension C in.(mm)
13.75(350)
11.88(300)
9.88(250)
7.89(200)
6.00(150)
6.00(150)
MP20 to MP63 and MC20 to MC50 Circuit Breakers
Dimension C in.(mm)
13.75(350)
11.89(300)
9.88(250)
7.88(200)
7.88(200)
7.88(200)
DANGERHAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
0631
3262
11
2
0631
3262
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 1—Installation
© 1998–2002 Schneider Electric All Rights Reserved 17
3. Connect control wires according to wiring diagrams shown on the label. Use a small screwdriver to open the spring clips and install wires. Wiring diagrams are also located at the end of this bulletin.
4. Route control wires away from the arc chutes. Replace the transparent cover.
Drawout-mounted Circuit Breakers 1. Remove the front terminal cover.
2. Determine the terminal number (1) according to the wiring label (2). Wiring diagrams are also located at the end of this bulletin.
0631
3262
1 1
2
3
3
2
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Do not route control wires close to the arc chutes venting holes. If this is done, wire insulation may melt and/or softening occur during circuit breaker interruption.
Failure to follow this instruction can result in equipment damage.
0613
3263
0613
3263
2
1
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 1—Installation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved18
3. Connect the control wires using a small screwdriver and replace the front terminal cover.
4. Route control wires away from arc chutes.
0631
3264
F1
F2
WT FV R
Z C MNR
Z11
Z12
Z21
Z22
e+ e- D4
D1
254
262
or2nd MX
C12
C11
orMX XF MN PAF MCH OF1 OF2 OF3 OF4
T1
T2
V V R1
R2
C or
F F O O SDE LT alarm
211
212
221
222
241
244
231
234
81 82 LR1
LR2
84 C2
C1
A4
A1
D4
D1
252
251
262
B4
B1
14 11 12 24 21 22 34 31 32 44 41 42254
Accessories (Right-hand Side)Control Unit (Left-hand Side)
1
2
3
1
3
2
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Do not let wires interfere with action of the disconnecting block.
Failure to follow this instruction can result in equipment damage.
0631
3265
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 2—Operation
© 1998–2002 Schneider Electric All Rights Reserved 19
SECTION 2— OPERATION
DISCONNECTING AND CONNECTING INSTRUCTIONS. The circuit breaker has four drawout positions and can be operated in all four
positions. The circuit breaker is captive in all positions except WITHDRAWN.
A closed circuit breaker is automatically opened prior to being connected or disconnected during a racking in or racking out operation.
Connection or disconnection of the circuit breaker requires insertion of the racking crank. Insertion of the racking crank can be prevented by the following stationary assembly accessories:
• Padlock
• Key lock
• Racking interlock
Disconnecting and connecting instructions are summarized on the label provided with the installation instructions. The label must be affixed to the door of the switchboard.
• In the CONNECTED position, the primary and secondary disconnecting terminals are engaged, and the circuit breaker is ready for service.
• In the TEST position, the primary terminals are disengaged, however, control contacts are connected to permit operation of the circuit breaker. The TEST position is used for testing circuit breaker operation and control system functions. In this position, the circuit breaker is not suitable for internal inspection or any maintenance function.
• In the DISCONNECTED position, the primary and secondary disconnect terminals are disengaged and separated by a safe distance from the corresponding stationary terminals.
• In the WITHDRAWN position, both primary and secondary contacts are disconnected. The circuit breaker may be removed for complete accessibility.
When a racking crank remains inserted or a circuit breaker is not completely disconnected, the extraction of the right rail is prevented.
0631
3266
CONNECTED position
TEST position
DISCONNECTED position
WITHDRAWN position
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 2—Operation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved20
Disconnecting Instructions
If the circuit breaker is not opened before disconnecting, it will open automatically during disconnection.
1. Remove the racking crank from its storage hole, insert it into the racking slot, and engage the mechanism.
In the case of a racking interlock, press the “compartment door closed” sensor located at the front of the drawout mechanism to simulate a closed door.
2. To reach the DISCONNECTED position, turn the racking crank counterclockwise until first the TEST, and then DISCONNECTED indication are shown on the position indicator.
3. Remove the racking crank and insert it into the storage hole.
If the racking crank is not removed, the right rail will not fully extend.
4. Using the two extension rail handles, pull the circuit breaker out.
5. Remove the circuit breaker using one of the lifting methods explained in Handling, page 9.
DANGERHAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
0631
3267
1 2
connected
test
disconnected
0631
3267
0631
3267
es
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 2—Operation
© 1998–2002 Schneider Electric All Rights Reserved 21
Installing the Circuit Breaker in the Stationary Assembly
1. Pull out the two extension rails by their handles.
When either the racking crank remains inserted in the racking slot or the circuit breaker is not fully disconnected, extraction of the right extension rail is not possible.
2. Install the circuit breaker onto both extension rails, being sure that the two circuit breaker supports located on either side are fully engaged in the rail slots. Refer to Handling, page 9, for methods of lifting the circuit breaker.
3. To move the circuit breaker from the WITHDRAWN position to the DISCONNECTED position, push the extension rail handles into the stationary assembly until they stop.
0631
3268
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Do not let the forks of a fork lift protrude past the rear of the circuit breaker.
Do not press on the control unit while pushing the circuit breaker into the stationary assembly.
Failure to follow this instruction can result in equipment damage.
0631
3268
06313268
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 2—Operation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved22
Connecting Instructions
1. Insert and engage racking crank into the racking slot.
NOTE: This procedure is possible only if:
— circuit breaker is in DISCONNECTED position,
— drawout mechanism padlocks have been removed,
— key interlock has been unlocked and
— compartment door is closed.
In case of racking interlock, press the “compartment door closed” sensor located at the drawout mechanism to simulate a closed door.
2. Turn the racking crank clockwise until the CONNECTED position is reached on the position indicator. Continue cranking until two “click” sounds are heard indicating the circuit breaker is locked in the connected position.
As the CONNECTED position is neared, more effort will be required to turn the crank.
3. Remove the racking crank and insert it back into the storage hole.
DANGERHAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
0631
3267
1 2
0631
3269
0631
3269 1
2
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 2—Operation
© 1998–2002 Schneider Electric All Rights Reserved 23
OPERATING
Charging Instructions All basic circuit breaker and drawout operations can be performed from the front of the circuit breaker. Suitable electrical and mechanical interlocks are provided to prevent incorrect operation of the circuit breaker. To manually charge an electrically- or manually-operated circuit breaker, push or pull down on the charging handle, six full strokes should be used. When the spring is fully charged, the yellow “charged” indicator will appear in the stored-energy window on the circuit breaker front cover, the handle stops, and it will return to normal position when released.
Closing Instructions All that is required to close the circuit breaker locally is to push the mechanical push ON button. Pre-charged circuit breakers may be closed remotely via a spring-released solenoid which is standard for electrically operated circuit breakers and optional for manually-operated circuit breakers. Before attempting to close the circuit breaker locally, the stored-energy indicator window must show a yellow “charged.''
Circuit breaker can be closed only if:
• It is opened
• It is charged
• Pop-out type fault indicator is correctly reset
• No remote opening order is intended.
The closing coil (XF) withstands a continuous voltage, providing anti-pumping function. If the circuit breaker is not ready to close when the closing order is intended, inhibit it and try again as soon as the circuit breaker is ready to close. To inhibit the anti-pumping function, wire in series the ready-to-close switch (terminals 251-252) with the closing coil.
0631
3270
Manual Charging Electrical Charging
ON
0631
3271
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 2—Operation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved24
Opening Instructions Opening the circuit breaker locally is accomplished by pushing the mechanical push OFF button on the circuit breaker front cover. Circuit breakers may be opened remotely via either a shunt trip or an undervoltage trip device depending upon the application requirements.
Resetting InstructionsThe mechanical fault indicator (push to reset button) extends to indicate that an overcurrent has occurred and prevents closure of the circuit breaker. Reset by pushing button in.
LOCKING
Locking by Key Interlock
This locking can be in DISCONNECTED position or in all positions: CONNECTED, TEST and DISCONNECTED (upon request).
Figure 23: Locking by Key Interlock (VSKC)
Locking in the DISCONNECTED position:
1. Disconnect the circuit breaker,
2. insert key and turn counterclockwise and
3. remove the key.
OFF
0631
3272
CAUTIONHAZARD OF EQUIPMENT DAMAGE
Resetting the circuit breaker with an existing overcurrent or ground-fault condition can result in destructive arcing. Be sure any existing faults are cleared prior to resetting.
Failure to follow this instruction can result in equipment damage.
0631
3273
Figure 22: Locking by Key Interlock (VSKA)
OFF
2
1
3Locking in open position:1. Push the push OFF button2. Insert and turn the key counterclockwise3. Remove the key
2
3
0631
3276
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 2—Operation
© 1998–2002 Schneider Electric All Rights Reserved 25
Locking by Padlock Figure 24: Locking by Padlock (VBP)
Prevent access to: push OFF (switch open) or push ON (switch close) or both push OFF and push ON buttons of the circuit breaker by attaching a padlock.
Figure 25: Locking by Padlock Device (Standard)
This locking prevents insertion of the racking crank and racking the circuit breaker into its stationary assembly.
Figure 26: Locking by Padlocking Device
Locking by Door Interlock Figure 27: Locking by Door Interlock (VDP)
The door interlock prevents the door from opening when the circuit breaker is in the CONNECTED and TEST positions.
sh OFFO ush ON
I
O
sh OFF
I
ush ON
0631
3275
Shackle diameter:1/4 to 5/16 in.[6 to 8 mm]
1 2
0631
3277
Shackle diameter: 1/4 to 5/16 in. [6 to 8 mm]
0631
3280
0631
3278
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 2—Operation 01/2002
© 1998–2002 Schneider Electric All Rights Reserved26
The hook can be mounted on either side. To change hook location:
Spring Interlock Figure 28: Spring Charged Interlock
Before pulling out the circuit breaker, discharge the spring by pressing the push ON button, then the push OFF button.
When the closing springs are charged, this interlock prevents the circuit breaker from being disconnected by latching it in the stationary assembly. Use of this locking method is not suitable with an undervoltage trip device.
06
31
32
79
AB A
B
1
2
0631
3281
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 27
SECTION 3— CONTROL UNIT TYPES
Opush OFF
MERLIN GERIN
MP20H1
masterpact
connected
test
disconnected
O OPENdischarged
I
push ON circuit breaker
3 pole600V 50/60Hz
frame size 2000A
suitable for continious operation
at 100% rating in a minimum cubical
space H17.5 by W21 by D14.1/4 inches
ventilation is not required
interrupting rating
max RMS sym amps
Volts240480600
short time rating 75KA
Amps75K75K75K
IEC 957-2 690V 50/60Hz
interrupting rating
Icu 380/440V 75KA
660V 75KA
Icu 380/440V 75KA
660V 75KA
short time rating
Icw=75KA 0.5 sec.
push to reset
I
I1 I2 I3
90%
50%
20%
STR 58 U
Ir
90
105%Ir
.88.9 .92
.95
.981.8
.85
xIo
Im tm
3
4 56
8
101.52
xIo
.3
.4 .3
.1
.1.2
on I2t off
.2
0
Ir fault
tr
Im fault
tm
I
faultIh
th
t
i
test
+ S Ð
Ð T +
T
F
Ihth
400
500 600800
1000
1200250
320
A
.3
.4 .4
.2
.1.2
on I2t off
.3
.1
I
off2
xIn
Ir :
Im :
th :
I
IG LI
G
LLG
LIG
off
reset V
tr
60
120 240
480
1530
at 1,5Ir
4
6
8 12
17
22
Ic1Ic2
.86
.9 .93.95
.98
1.8
.85
.7
.8 .85
.95
.5.6
xIr
.9
1
R
xIr
test
Io=3000A
cat. no. 54775
for masterpact
with sensors In = 6000A
E63335UND. LAB. O List.
CIRCUIT BREAKER
Doles. Issue N° LM-879200000
0631
3282
Io = Rating plugln = Sensor ratinglr = Long-time pickuptr = Long-time delaylm = Short-time pickuptm = Short-time delayl = Instantaneous pickup
lh = Ground-fault pickupth = Ground-fault delay
I
812 14
19
22max2
4
xIn
push to reset
STR 18 M
test
+ Ð
push to reset
II1 I2 I3
90%
50%
20%
STR 28 D
90
105%Ir
.88.9 .92
.95
.981.8
.85
xIo
Im
34 5
6
8101.5
2
xIr
Ir
Im
t
i
test
+ Ð
Ir :
Im :
Ir
push to reset
II1 I2 I3
90%
50%
20%
STR 38 S
Ir90
105%Ir
.88.9 .92
.95
.981.8
.85
xIo
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
Ir fault
tr
Im fault
tm
I
faultIh
th
t
i
test
+ Ð
Ð +
T
F
test
Ih th
400
500 600800
1000
1200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
offmax.xIn
Ir :
Im :
th :
overcurrent
ground
push to reset I+T L+I
I
L+TL off
T
L+I+T
II1 I2 I3
90%
50%
20%
STR 58 U
Ir tr90
105
τ tr
%Ir.88
.9 .92.95
.981.8
.85
xIo
60120 240
48015
30
at 1.5Ir
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
Ir fault
tr
Im fault
tm
I
faultIh
th
t
i
test
+ Ð
Ð +
T
R
F
test
Ih 1200A Max th
400500 600
800
10001200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
812 14
19
22Max.2
4
xIn
Ic1 Ic2
.86.9 .93
.95
.981.8
.85
xIr
.7.8 .85
.95.5
.6
.9
1xIr
V
Ir :
Im :
th :
min.norm
overcurrent
ground
reset V
0631
3283 STR 18 M
Control UnitOvercurrent protection
• Instantaneous
Options
• None
STR 28 DControl Unit
Overcurrent protection
• Long-time• Instantaneous
Options
• Ammeter
STR 38 SControl Unit
Overcurrent protection
• Long-time• Short-time• Instantaneous
Options
• Ammeter• Fault Indicators• Ground-fault Protection
STR 58 UControl Unit
Overcurrent protection
• Long-time• Short-time• Instantaneous
Options
• Ammeter• Fault Indicators• Ground-fault Protection• Zone-selective interlocking• Load Monitoring• Communication
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved28
STR 18 M CONTROL UNIT
Description
1. Fault trip indicator reset button prevents reclosing of circuit breaker after fault until reset.
2. Current sensor rating (ln)
3. Instantaneous setting (can be turned OFF on N1 and H1 circuit breakers)
4. Test the receptacle
5. Lock the control unit settings(captive nuts)
push to reset
STR 18 M
test
+ Ð
I
812 14
19
22max2
4
xIn
I
812 14
19
22max2
4
xIn
0631
3284
1
2
3
5
4
5
SettingsInstantaneous Pickup (short-circuit)
BU ME
PBD
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 29
1. Before energizing main circuits, open and discharge circuit breaker.
2. Adjust control unit.
3. Close circuit breaker.
4. Test the control unit.
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
I6
8 121722
Max.24
push to reset
STR 18 M
I
xIn
0631
3286
In=2000 A
2000 AIn (Example)
N1-H1(800–3200 A)
2 8
2 8
N1-H1(4000–5000 AH2
off
Max
I = 8 x In = 16000 A
I 2 to Max
connected
test
push OFFO push ON
I
ON
disconnected
0631
3287
push to reset
STR 18 M
I
xIn
MERLIN GERIN
I
xIn
test+ Ð
BU ME
0631
3288 The complete test kit can
simulate a short circuit.
With the mini test kit
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved30
STR 28 D CONTROL UNIT
Description
1. Fault trip indicator reset button prevents reclosing circuit breaker after fault until reset
2. Measure the current
3. Indicates the rate of load (%tr)
4. Current sensor rating (In)
5. Rating plug (Io)
6. Adjust lf (long-time setting)
7. Adjust Im (instantaneous)
8. Overload indicator
9. Control unit setting values
10. Test the control unit
11. Lock the control unit settings
push to reset
II1 I2 I3
90%
50%
20%
STR 28 D
90
105%Ir
.88.9 .92
.95
.981.8
.85
xIo
Im
34 5
6
8101.5
2
xIr
Ir
Im
t
i
test
+ Ð
Ir :
Im :
Ir
.88.9 .92
.95
.981.8
.85
xIo
Im
34 5
6
8101.5
2
xIr
Ir
0631
3289 Settings
Adjustable
Ir Long-time setting (overload)
Im Instantaneous setting (short-circuit)
Fixed
tr Long-time delay
OptionsOption I see page 38
1
2
3
4
11
5
6
7
89
10
11
I
I
ALR
BU ME
PBD
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 31
1. Before energizing main circuits, open and discharge circuit breaker.
2. Adjust control unit.
3. Close circuit breaker.
4. Test the control unit.
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
Io0.63 0.8
10.5
I.88
.9 .92.95.98
1.8.85
ImI = 2000 A
push to reset
I1 I2 I390%
50%
20%
STR 28 D
Ir
xIoIm
xIot
i
test
I3
4 568
101.52
r
m
n
0631
3290
Io = 1600 A
Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A
2000 A
1600 A
In
Io
Ir
Im
0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0
1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.0
Ir = 0.90 x Io = 1440 A
Im = 5 x Ir = 7200 A
Ir
Im
0.8 to 1 Io
1.5 to 10 Ir
connected
test
push OFFO push ON
I
ON
disconnected
0631
3287
push to reset
I1 I2 I390%
50%
20%
STR 28 D
Ir
xIoIm
xIot
i
test
xIot
i
MERLIN GERIN
test+ Ð
MEBU
0631
3291
The complete test kit can simulate:—an overload—a short-circuit
With the Mini Test Kit
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved32
STR 38 S CONTROL UNIT
Description
1. Fault trip indicator reset button prevents reclosing circuit breaker after fault until reset.
2. Measure the current.
3. Indicates the rate of load (%tr)
4. Current sensor rating (In)
5. Overload indicator
6. Rating plug (Io)
7. Adjust Ir (long-time setting)
8. Adjust Im (short-time setting)
9. Adjust tm (short-time delay)
10. Control unit setting values
11. Switch on or off the instantaneous protection (N1/H1 type only)
12. Adjust Ih (ground-fault protection)
13. Adjust th (ground-fault protection delay)
14. Fault trip indicator
15. Test the control unit
16. Lock the control unit settings
17. Save fault trip indicator
18. Clear fault trip indicator and / or check battery level
19. Recall the latest fault trip indicator
push to reset
II1 I2 I3
90%
50%
20%
STR 38 S
Ir90
105%Ir
.88.9 .92
.95
.981.8
.85
xIo
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
Ir fault
tr
Im fault
tm
I
faultIh
th
t
i
test
+ Ð
Ð +
T
F
test
Ih th
400
500 600800
1000
1200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
offmax.xIn
Ir :
Im :
th :
overcurrent
ground
20%
1
I
i
F
I
Ir.88
.9 .92.95
.981.8
.85
xIo
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
TIh th
400
500 600800
1000
1200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
offmax.xIn
I
F
T
W
0631
3292
SettingsAdjustable
Ir Long-time setting (overload)
Im Short-time setting (short-circuit)
tm Short-time delay I2t on or off
OptionsOption
Option
Option
Option
see page 38
see page 39
see page 41
see page 41
1
2
3
4
16
567
8
9
10
1112
13
1415
16
17
1819
I
I
ALR
W T
W T
F
BU ME
PBD PIL
+ F PIL
+ F PIL
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 33
1. Before energizing main circuits, open and discharge circuit breaker.
2. Adjust control unit.
3. Close circuit breaker.
4. Test the control circuit.
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
In = 2000 A 0.515
Im3
4 568
101.52
tm.3
.4 .3.2.1
0.1.2
push to reset
I1 I2 I390%
50%
20%
STR 38 S
Ir
xIoIm tm
xIot
i
test
T
F
test
Ih th
xIn
I
xIn
I
Io0.63 0.8
10.5
Ir.88
.9 .92.95.98
1.8.85
Im tm
offMax.xIn
0631
3293
lo = 1600 AExample: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A
2000 A
1600 A
In
Io
Ir
Im
I
0.8 0.55 0.88 0.90 0.930.95 0.98 1.0
1.5
Ir = 0.90 x Io = 1440 A
2.0 3.0 4.0 5.0 6.0 8.0 10.0
Im = 5.0 x Ir = 7200 A
(H1) Max Max Max MaxMax Max Max off
Ir 0.8 to 1.0 Io
Im 1.5 to 10.0 Ir
Max.
off
I
In = 2000 A 0.515
Im3
4 568
101.52
tm.3
.4 .3.2.1
0.1.2
push to reset
I1 I2 I390%
50%
20%
STR 38 S
Ir
xIoIm tm
xIot
i
test
T
F
test
Ih th
xIn
I
xIn
I
Io0.63 0.8
10.5
Ir.88
.9 .92.95.98
1.8.85
Im tm
offMax.xIn
0631
3293
Io = 1600 AExample: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A
2000 A
1600 A
In
Io
Ir 0.8 0.55 0.88 0.900.93 0.95 0.98 1.0
Ir = 0.90 x Io = 1440 A
Im 1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.0
Im = 5 x Ir = 7200 A
Ir
Im
I H1 Max Max Max Max Max Max Max off I
0.8 to 1.0 Io
1.5 to 10.0 Ir
Max
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir
xIoIm tm
xIot
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIr
tr
at 1.5Ir
t
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIrÐ ground
overcurrent
MERLIN GERIN
test+ Ð
MEBU
0691
3298
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
With the Mini Test Kit
The complete test kit can simulate:—an overload—a short-circuit—a ground-fault
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved34
STR 58 U CONTROL UNIT
Description
1. Fault trip indicator reset button prevents reclosing of circuit breaker after fault until reset
2. Select the remote indicated fault trip
3. Measure the current
4. Select phase to measure
5. Indicates the rate of load (%tr)
6. Maximum protection rating
7. Overload indicator
8. Rating plug (Io)
9. Adjust lr (long-time setting)
10. Adjust tr (long-time delay)
11. Adjust lm (short-time setting)
12. Adjust tm (short-time delay)
13. Decrease thermal memory after tripping
14. Adjust I (instantaneous)
15. Adjust lh(ground-fault protection)
16. Adjust th(ground-fault protectiondelay)
17. Control unit setting values
18. Adjust Ic2 (load monitoring)
19. Adjust Ic1 (load monitoring)
20. Test the control unit
21. Save fault trip indicator
22. Lock the control unit settings
23. Clear fault trip indicatorand/or check battery level
24. Recall the latest fault tripindicator
25. Fault trip indicator
push to reset I+T L+I
I
L+TL off
T
L+I+T
II1 I2 I3
90%
50%
20%
STR 58 U
Ir tr90
105
τ tr
%Ir.88
.9 .92.95
.981.8
.85
xIo
60120 240
48015
30
at 1.5Ir
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
Ir fault
tr
Im fault
tm
I
faultIh
th
i
test
+ Ð
Ð +
T
R
F
test
Ih 1200A Max th
400500 600
800
10001200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
812 14
19
22Max.2
4
xIn
Ic1 Ic2
.86.9 .93
.95
.981.8
.85
xIr
.7.8 .85
.95.5
.6
.9
1xIr
V
Ir :
Im :
th :
min.norm
overcurrent
ground
reset V
Ir tr.88
.9 .92.95
.981.8
.85
xIo
60120 240
48015
30
at 1.5Ir
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
T
R
Ih 1200A Max th
400500 600
800
10001200250
320
A
.3
.4 .4
.2.1
.2
on I2t off
.3
.1
I
812 14
19
22Max.2
4
xIn
Ic1 Ic2
.86.9 .93
.95
.981.8
.85
xIr
.7.8 .85
.95.5
.6
.9
1xIr
I
F
C
Z
W
T
R
FV
0631
3295
1
2
3
4
5
6
7
89
1011
12
1314
15
16
17
18
1920
21
22232425
SettingsAdjustable
Ir Long-time setting (overload)
tr Long-time delay
Im Short-time setting (short-circuit)
tm Short-time delay I2t on or off
OptionsThermal memory
Option
Option
Option
Option
Option
Option
Option
Option
see page 38
see page 39
see page 41
see page 40
see page 41
see page 41
see page 42
see page 42
limitation function
see page 37
FV
I
I
I
ALR
W T
W T
R
R
BU ME
PIL
PBD
+ F PIL
+ F PIL
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 35
1. Before energizing main circuits, open and discharge circuit breaker.
2. Adjust control unit.
3. Close circuit breaker.
4. Test the control unit.
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
I6
8 121722
off24
In = 2000 A
Io0.63 0.8
10.5
Ir.88
.9 .92.95.98
1.8.85
tr60
120 240
48015
30
Im tm
0.515
Im3
4 568
101.52
tm.3
.4 .3.2.1
0.1.2
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIot
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIrI
Max.2
0631
3296
Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A
2000 A
1600 A
0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0
Ir = 0.90 x Io =1440 A
1.5 2.0 3.0 4.0 6.0 8.0 10.05.0
Im = 5 x Ir = 7200 A
(H2)
In
Io
Ir
Im
I(H1)
2
2
Max
off
Ir
Im
I
0.8 to 1.0 Io
1.5 to 10.0 Ir
2 to Max 2 to off
Io0.63 0.8
10.5
Io0.63 0.8
10.5
Ir.88
.9 .92.95.98
1.8.85
t60
120 240
48015
30
Im3
4 568
101.52
tm.3
.4 .3.2.1
0.1.2
Ir.88
.9 .92.95.98
1.8.85
tr60
120 240
48015
30
Im3
4 568
101.52
t.3
.4 .3.2.1
0.1.2
.3
.1.2
.4 .3.2.1
0
t
t
on I2t
I2t off
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIot
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIr
15É480 str
m
r
m
m
0691
3297
tmI2t off
0 to 0.4 s
ontm
2t
0.1 to 0.3 s
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir
xIoIm tm
xIot
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIr
tr
at 1.5Ir
t
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIrÐ ground
overcurrent
MERLIN GERIN
test+ Ð
MEBU
0691
3298
connected
test
dischargedpush OFFO push ON
I
OFF
disconnected
0631
3285
With the Mini Test Kit
The complete test kit can simulate:—an overload—a short-circuit—a ground-fault
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved36
CONTROL UNIT OPTIONS
Pre-trip and Overload Indication OptionThe pre-trip and overload indication is standard with all control units except STR 18 M. The overload indicator is a light-emitting diode (LED) which is:
• On when the current exceeds 90% of the current setting.
• Flashing on overload when current exceeds 105–120% of current setting.
The pre-trip alarm switch is a contact (LR1–LR2) which closes when the circuit breaker is in the overload zone. It opens if the load decreases below the overload zone or if the circuit breaker trips.
For wiring diagram, see page 46.
When a dc power source is used, power has to be temporarily disconnected to reset the optical triac contacts.
ALR
0.63Io Ir
0.8
0.5 1
xIn
.88.9 .92
.95
.981.8
.85
xIo
Im tm
34 5
6
8101.5
2
xIr
.3
.2
0.63Io Ir tr
0.8
0.5 1
xIn
.88.9 .92
.95
.981.8
.85
xIo
60120 240
48015
30
at 1.5Ir
Im tm
34 5
6
8101.5
2
xIr
.3
.4 .3
.1.1
.2
on I2t off
.2
0
90
105%Ir
push to reset
I1 I2 I390%
50%
20%
STR 28 D
t
i
test
Io Ir
xIn xIoIm
xIo
0.63Io Ir
0.8
0.5 1
xIn
.88.9 .92
.95
.981.8
.85
xIo
Im
34 5
6
8101.5
2
xIr
90
105%Ir
.4 .3
.1.1
on I2t off
.2
0
+
+
+
90
105%Ir
90
105%Ir
0631
3299
STR 28 D
STR 38 S
STR 58 U
LED
OFF:I < 0.9 Ir
ON:0.9 Ir – 1.05 Ir
Flashing:I > 1.05 Ir
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 37
Thermal Memory Limitation Thermal memory is standard on the STR 38 S and STR 58 U trip units. The thermal memory function remembers the thermal heating from each time the pickup setting is exceeded.
It operates:
• Before tripping on long-time and ground-fault protection (if provided).
• After tripping on long-time protection only; the time-constant depends on the internal temperature of the circuit breaker.
Any temporary overload generates an overheating value, which is stored. A series of temporary overloads will be integrated into this overheating value. Storing of this value results in reduced tripping time so the reaction of the trip unit will be closer to the real heating seen by the system. The internal temperature rise of the circuit breaker is measured by thermal resistors. The cooling time constant of the memory depends on the over-temperature condition. The standard version of the control unit STR 58 is fitted with a min/max position switch.The min position cancels the thermal memory and must only be used in emergencies where reclosing on a fault is essential.WARNING
HAZARD OF PERSONAL INJURY OR EQUIPMENT DAMAGE.
Use “min” position only for emergency, when reclosing on fault is absolutely necessary.
Failure to follow this instruction can result in serious personal injury or equipment damage.
tr
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir
xIo at 1.5IrIm tm
xIo
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIr
xIn
t
tτ
tτ
➁ ➂➀
t
τ
t
t
II
t
τ t
t
τ
t
t norm
t
t = f( ACB)
t
θ°II
τ t
τ t norm.
τ t min.
r
r
r
r
r x
r
x
r r t min.
r r
r
r
r
0691
3300
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved38
Ammeter OptionI1, I2, I3: Phase current
Im: Maximum instantaneous current
max: Maximum current stored since the last reset
Ih: Ground-fault current
I
STR 38 S
I
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
push to reset
I1 I2 I390%
50%
20%
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
IM I1 I2 I3
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
max
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
max
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
max
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
Ih
push to reset
I1 I2 I390%
50%
20%
STR 38 S
I
IN
push to reset
I1 I2 I390%
I
Im
Im
0631
3301
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 39
Fault Indication OptionThree light-emitting diodes (LEDs) indicate separately long-time, 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 fault indication after the circuit breaker trips. Two options are offered:
• Connecting a reliable 24 Vdc control voltage on F1-F2. Auxiliary power module is used for other voltages. When the control source is unreliable, a bettery pack (BAT) is added to 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 resetting buttons.
F
Ih
xIn
xIn
Ic1
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIo
test
T
R
th
I
Ic2
xIr xIr
t
i
F
test
Ir :
Im :
th :tr
Im faulttm
I
faultIh
th
t
i
test
Ir fault
tr
Im faulttm
Ifault
Ih
th
t
i
test
Ir :
th :
tm :Ir fault
F
test
tr
Im faulttmI
faultIh
th
t
i
test
Ir :
Im :
th :
Ir fault
F
test
0631
3302
Turns off after two minutes (if internal battery power supply). Call it back then reset it.
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved40
Battery Option
Load Monitoring OptionThe option R provides two independant static contacts which operate when the current exceeds adjustable pickup limits.
• When the current exceeds the limit Ic1 (or Ic2) the contact C-R1 (or C-R2) closes, following an inverse time characteristic a.
• When the current drops below the limit Ic1 (or Ic2) the contact C-R1 (or C-R2) opens with constant time delay (10 seconds) b.
For wiring diagram see page 46.\
tr
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir
xIo at 1.5IrIm tm
xIo
i
test
T
R
F
test
Ih th
xIn
I
xIn
Ic1 Ic2
xIr xIr
t
FTest
FTest
FTest
led
FTest
Lithium
3,5V - 850mA/hS A F T
0631
3303
Lithium BatterySize: 3.6 V - 850mA/hType: SAFT LS3
SONNENSCHEINTEL-S
Battery Test
1
2
3
4
5
6
7
R
Ih
xIn
xIn
Ic1
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIo
test
T
R
th
I
Ic2
xIr xIr
t
i
F
test
Ir :
Im :
th :tr
Im faulttm
I
faultIh
th
t
i
test
Ir fault
tr
Im faulttm
Ifault
Ih
th
t
i
test
Ir :
th :
tm :Ir fault
F
test
tr
Im faulttmI
faultIh
th
t
i
test
Ir :
Im :
th :
Ir fault
F
test
0631
3302
Turns off after two minutes (if internal battery power supply).
Call it back. then reset it.
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 41
Segregated Alarm Switch OptionThis switch works like the standard overcurrent trip switch (SDE) except a selector switch on the control unit is used to choose the type of fault which will operate the contact: overload, short-circuit, ground-fault or any combination of these types. This option can be used in addition to the SDE switch for remote signaling of particular types of faults.
A flat push button allows resetting of the indicator after tripping.
Ground-fault Protection Option
Use 24 Vdc module when circuit breaker has ground-fault trip unit and when load is less than 20% of sensor or ground-fault pick-up is set in the red* (lower) zone.
FV
F
testreset V
I+T L+I
I
L+TL off
T
L+I+T
Ih
xIn
xIn
Ic1
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIo
test
T
R
th
I
Ic2
xIr xIr
t
i
push to reset
F
test
0631
3305
Selector Switch
Fault Type
Overload Short-circuit Ground-fault
L 1 0 0
L + T 1 0 1
I 0 1 0
I + T 0 1 1
L + I 1 1 0
L + I + T 1 1 1
T 0 0 1
Off 0 0 0
To reset remote indicator contact (V output)
V
= 0
V
V
V
V
V
= 1
1 2
T or W
xIn
i RIc1 Ic2
push to reset
I1 I2 I390%
50%
20%
STR 58 U
Ir tr
xIo at 1.5IrIm tm
xIot
test
F
test
I
xIr xIr
Ih th
xIn
Tth
400
500 600
800
1000
1200250
320
A
.3
.4 .4
.2
.1
.2
.3
.1
Ih 1200A Max
on I2t off
TIh 1200A Max th
400
500 600
800
1000
1200250
320
A
.3
.4 .4
.2
.1
.2
.3
.1
on I2t off
400
250
320
0631
3306
*Red zone
Ih 0.1 to 1.0 In Max 1200 A
0.1 to 0.4 sec.
I2t on
Ih 0.1 to 1.0 In Max 1200 A
I2t off0.1 to 0.4 sec.
thT = Residual sensingW = Source ground return
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 3—Control Unit Types 01/2002
© 1998–2002 Schneider Electric All Rights Reserved42
Zone-selective Interlocking OptionOption Z on the STR 58 U trip unit provides selective interlocking of short-time or ground-fault tripping.A control wire links several trip units in the distribution network, as shown in the figure below.In the event of a fault, the trip unit will obey the pre-set delay only if receiving a signal from the downstream unit. If not receiving a signal, tripping will be instantaneous (time delay corresponding to 0.1 setting of short-time protection).• The fault is cleared instantaneously by the nearest circuit breaker.
• Thermal stresses (I²t) in the network are minimized, without any affect on the correct time delay coordination in the installation.
NOTE: On drawout circuit breakers, 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® CK type molded case circuit breakers with zone-selective interlocking option.
— Do not ground.Fault 1
Circuit breaker (A) will clear the fault instantaneously, regardless of its time delay setting.
Fault 2
Circuit breaker (B) will inform upstream circuit breaker (A) that it is clearing the fault so that circuit breaker (A) does not trip instantaneously. Circuit breaker (A) will trip at the end of its time delay setting if the fault is not cleared during this time.
Transmit Data from Trip Unit OptionThe DIGIPACT® connections communicate over MODBUS™ (J Bus) and require the STR 58 U control unit with option C (communications) and modules:
• DC 150: Data concentrator
• SC150: Product indication and control interface
Z
Table 9: Control Cable
Cable size #18–#14 AWG (1.5 mm2)
Max. length 60 ft. (20m)
WiringTwisted in pairs one turn per 4 in. (10 cm)
No. of circuit breakersUpstream: 2downstream; no limit
A
out
in in in
Z12Z11
Z22Z21
out
in
out
in
2
1
Z12Z11
Z22Z21
Z12Z11
Z22Z21
Z12Z11
Z22Z21
Z12Z11
Z22Z21
Z12Z11
Z22Z21
out
in
out outB
0631
3307
C
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 3—Control Unit Types
© 1998–2002 Schneider Electric All Rights Reserved 43
PowerLogicCIRCUIT MONITOR
0631
3308
With DIGIPACT® Modules
SC150 DC150Data Concentrator
SC150
With POWERLOGIC® Circuit MonitorsNetwork (SY/MAX)
Circuit Monitor
Table 10: MASTERPACT® Communications Functions
FunctionDIGIPACT POWERLOGIC Circuit Monitors
SC150 2050 2150 2250 2350
Basic Protection and Switching
Status (open/closed/tripped) c c c c c
Remote control (open/closed) c c c c c
Pre-trip overload indication c — — — —
Connected/disconnected position c c c c c
Load monitoring (option R) c — — — —
Internal temperature alarm c — — — —
Amps per phase (Ia, Ib, Ic, In) c c c c c
Trip time/date — — c c c
Trip type (L–S/I–G) c c c c c
Long-time alarm — c c c c
Magnitude of current interrupted — — 1 1 1
Trip history — — c c c
Trip unit settings c — — — —
Metering
Amps-instantaneous — c c c c
Amps-peak demand — c c c c
Volts (I–I and L–G) — c c c c
Power (instantaneous) VA, VAr, W — c c c c
Power (demand) VA, VAr, W — c c c c
Advanced Protection
Voltage imbalance — c c c c
Current imbalance — c c c c
Reverse power flow — c c c c
Reverse phase — c c c c
Frequency out of limits — c c c c
Power Quality
thd (amperages and voltage) — c c c c
Harmonics (amperages and voltage) — — — c c
Waveform (amperages and volts) — — — c c
Sags/swells — — — — c
Voltage disturbance — c c c c
1The circuit monitor input current is limited to 7.5 A. To obtain magnitude of current interrupted, the current transformers must be oversized appropriately.
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 4—Maintenance 01/2002
© 1998–2002 Schneider Electric All Rights Reserved44
SECTION 4— MAINTENANCE
ROUTING INSPECTIONS
ELECTRICAL MAINTENANCE
DANGERHAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors, and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
Perform Routine External Inspection: By:
• Annually for normal operating conditions and
• After every 1000 operations for harsh operating conditions
• Opening and closing the circuit breaker manually
• Opening and closing the circuit breaker remotely, using the different auxiliaries successively
• Testing operation of the control unit with the mini test kit or the complete test kit
Perform Routine External Inspection: By Checking:
• After circuit breaker opens on a short circuit or
• Every two years for normal operating conditions or
• Annually for harsh operating conditions
• Condition of arc chutes
• Condition of contacts
• Tightness of connections
• Condition of clusters
Perform Electrical Maintenance: By Replacing:
• When the maximum allowable electrical operation without maintenance is reached
• When the maximum allowable electrical operation with maintenance is reached
• Arc chutes
• Arc chutes
• Main contacts
Perform Electrical Maintenance: By Replacing:
• When the maximum allowable mechanical endurance without maintenance is reached
• The electrical charging mechanism
• The main contacts
• The two toggle return springs
• Mechanical interlocking
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 4—Maintenance
© 1998–2002 Schneider Electric All Rights Reserved 45
CHECK ARC CHUTES
Check Contacts Close the circuit breaker to check the wear of the contacts.
DANGERHAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
Failure to follow this instruction will result in death or serious injury.
0631
3309
Disconnect power and loosen screws.
Pry up arc chute.
0631
3310
Lift arc-chute out of circuit breaker.
Check the condition of the arc chute:• arc chute body not broken,• separators not corroded,• if necessary, replace the arc chute
0631
3311
≤ 4000 A x 3Good contacts Worn contacts
0631
3312
≤ 4000 A x 4Good contacts Worn contacts
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 4—Maintenance 01/2002
© 1998–2002 Schneider Electric All Rights Reserved46
WIRING DIAGRAM
Circuit breaker shown in connected, charged and open position, undervoltage release energized.
0631
3313
Drawout Position Switches Auxiliary Switches Remote Operation
Connected
Connected
Disconnected Test Standard Heavy DutyUndervoltage Trip Device or
Shunt Trip
Ready-to-close
Motor Operator
Disconnected TestClosed
Open
Remote Open
Remote Close
Spring Charged
314312
324322
334332
344342
352354
362364
372374
311 321 321 321 351 361 371
212222
234244
1214
2224
3234
4244
D4C2
A4252
254262
B4
F F O O
standardOF
M
MN MX XF
211
221
231
241
11 21 31 41 D1 C1 A1 251 B1
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 4—Maintenance
© 1998–2002 Schneider Electric All Rights Reserved 47
1
+_
0631
3314
Remote Fault and Overload Indication
Ammeter Ground-fault Protection
Local Fault Indications and Remote Selected Fault Indication
Zone-selective Interlocking
Load Monitoring
Data Transmission
Fault Alarm
Overload Alarm
82 841 LR2
S2 S1
T2 T1
Selected Fault
Communication
Upstream Circuit Breaker
V Z11 Z12 R1 R2
Ic1
Ic2
e+ e-
Communication Network3
SDELT alarm
I option4 T or W option5
LT ST Gnd
F or FV option6 V
out
Z option
inR option
C option
81 LR1 F1 F2
24 Vdc
Z212 Z22 C
Downstream Circuit Breaker
1 84 terminal not available with Z or C option.2 Zone-selective interlocking with downstream circuit breaker requires removal of jumper from drawout circuit breaker.3 Communication output through DIGIPACT® module.4 Use 24 Vdc supply if I max, information is to be retained after the circuit breaker has tripped.5 Use 24 Vdc supply for lower setting of ground-fault pickup (red zone), or when load is less than 20% of sensor rating.6 Use 24 Vdc supply for F option if not supplied with PIL (battery) option.
Use 24 Vdc supply (mandatory) for FV option.
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 5—Set-up Guide
© 1998–2002 Schneider Electric All Rights Reserved 48
SECTION 5— SET-UP GUIDE
MINIMUM ENCLOSURE The following tables indicate the minimum compartment size in which the circuit breaker has been tested and is suitable for continuous operation at 100% rating.
Figure 29: Drawout Circuit Breaker (with Arc Chute Cover)
Table 11: Dimensions
Table 12: Ventilation
0631
3315
W D
H
X X
Circuit Breaker Type
DimensionMP08–MP20in. (mm)
MP25–MP30in. (mm)
MP40–MP50in. (mm)
MC08–MC20in. (mm)
MC32in. (mm)
MC40–MC50in. (mm)
H 17.50 (440) 26.00 (660) 26.00 (660) 17.50 (440) 22.00 (560) 26.00 (660)
W 21.00 (530) 21.00 (530) 34.00 (670) 21.00 (530) 25.25 (650) 34.00 (670)
D 14.25 (360) 14.25 (360) 14.25 (360) 14.25 (360) 14.25 (360) 14.25 (360)
X-minimum 0 0 4.30 (110) 0 4.30 (110) 4.30 (110)
Circuit Breaker Type
VentilationMP08–MP20in. (mm)
MP25–MP30in. (mm)
MP40–MP50in. (mm)
MC08–MC20in. (mm)
MC32in. (mm)
MC40–MC50in. (mm)
(both top and bottom) None 30.00 (200) 30.00 (200) None 30.00 (200) 30.00 (200)
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 5—Set-up Guide
© 1998–2002 Schneider Electric All Rights Reserved 49
CLEARANCE INFORMATION Dimensions shown are for the maximum interrupting current of the circuit breaker.
Figure 30: Drawout Circuit Breaker (with Arc Chute Cover)
Figure 31: Fixed Circuit Breaker (with Arc Chute Cover)
0631
3316
Min. = 0 Min. = 0
Min. = 0 Min. = 0
3.94 in.[100 mm]
0631
3317
Min. = 0 Min. = 03.94 in.
[100 mm]
Min. = 0 Min. = 0 7.88 in.[200 mm]
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 5—Set-up Guide 01/2002
© 1998–2002 Schneider Electric All Rights Reserved50
STACKING CONFIGURATIONS The following table shows some possible circuit breaker stacking configurations. These examples apply when the circuit breaker is used either as a main, a tie or a feeder circuit breaker.
The depth of the circuit breaker zone (14.25 in. [362 mm]) is equal to the depth of the circuit breaker compartment.
• NEC 380-8 requires all switches and circuit breakers used as switches to be located so that they may be operated from a readily accessible location. They shall be installed so that the center of the switch or circuit breaker operating handle grip, when in its highest position, will not be more than 6.5 ft. (1.98 m) above the floor or working platform.
• Customer allowable cumulative loading is as recommended in ANSI C 37.20.1.
• Type MP, which is UL Listed under UL 489, is intended to be mounted in switchboards.
• Type MC, which is UL Listed under UL 1066, is intended to be mounted in switchgear.
0631
3318
90.00 in.[2286 mm]
MP08 / MP12MP16 / MP20MC08 / MC16MC20
17.5
MP08 / MP12MP16 / MP20MC08 / MC16MC20
17.5
MP08 / MP12MP16 / MP20MC08 / MC16MC20
17.5
MP08 / MP12MP16 / MP20MC08 / MC16MC20
17.5
84.00 in.[2134 mm]
MP25 / Blank
26
MP25 / MP30
26
MP25 / MP30
26
21.00 in.[533 mm]
21.00 in.[533 mm]
: Ventilation
25.25 in.[641 mm]
34.25 in.[870 mm]
14.25 in.[362 mm]
Blank Compartment
MC32
22
22
MC32
Blank Compartment
MP40 / MP50MC40 / MC50
MP40 / MC40 / Blank
Circuit Breaker
Zone
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 5—Set-up Guide
© 1998–2002 Schneider Electric All Rights Reserved 51
CUMULATIVE LOADING
Allowable cumulative loading can be based on equal loading or higher loading in the lowest compartment.
Table 13: Allowable Cumulative Loading Values Per Compartment Section
Circuit Breaker Type
Frame Size (A)Number of Circuit Breakers Carrying Load
Allowable Cumulative Load
MP08 and MC08 800
1 800*
2 1300*
3 1800*
4 2200*
MP12 1200
1 1200
2 1900
3 2700
4 3400
MP16 and MC16 1600
1 1600*
2 2600*
3 3600*
4 4500*
MP20 and MC20 2000
1 2000*
2 3200*
3 4500
4 5600
MP25 2500
1 2500
2 4000
3 5600
MP30 30001 3000*
2 4800*
MP32 32001 3200
2 5100
MP40 and MC40 40001 4000*
2 6400
MP50 and MC50 5000 1 5000
*ANSI C37.20.1 values.
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Section 5—Set-up Guide 01/2002
© 1998–2002 Schneider Electric All Rights Reserved52
TEMPERATURE DERATING The continuous current rating is based on use in a 40°C ambient temperature environment, inside an enclosure. Continuous current ratings must be derated for ambient temperatures above 40°C, as indicated in the following tables.
Table 14: Continuous Current Rating Based on Temperature Ambient
MountingAmbient Temperature
Circuit Breaker Type
MP08H MP12H MP16H MP20H MP25H MP30H MP40H MP50H MP63H
Drawout
40°C
45°C
50°C
55°C
60°C
800
800
800
800
800
1200
1200
1200
1150
1100
1600
1600
1550
1450
1350
2000
2000
2000
1900
1800
2500
2500
2500
2400
2300
3000
2900
2750
2600
2450
4000
3900
3700
3500
3300
5000
5000
4800
4500
4200
6300
6000
5700
5400
5100
Fixed
40°C
45°C
50°C
55°C
60°C
800
800
800
800
800
1200
1200
1200
1200
1150
1600
1600
1600
1550
1450
2000
2000
2000
2000
1900
2500
2500
2500
2500
2400
3000
3000
2900
2600
2450
4000
4000
3900
3700
3300
5000
5000
5000
4800
4500
MC08N MC08H MC16H MC20H MC32H MC40H MC50H
Drawout
40°C
45°C
50°C
55°C
60°C
800
800
800
750
700
800
800
800
750
700
1600
1500
1400
1300
1200
2000
2000
1900
1500
1700
3200
3000
2800
2600
2420
3750
3550
3350
3050
2850
5000
4800
4500
4200
3800
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Section 5—Set-up Guide
© 1998–2002 Schneider Electric All Rights Reserved 53
POWER DISSIPATION
These values were obtained by extensive heat run testing and represent the total heating effect rather than the heating caused by I2r losses alone.
RESISTANCE
ALTITUDE CORRECTION FACTORS
When applying circuit breakers at altitudes great than 6600 ft. (2000 m), their voltage and continuous current ratings must be modified. Breaking capacities remain unchanged.
Table 17: Correction Factors
Table 15: Power Dissipation Measured* in Watts
MountingCircuit Breaker Type
MP08 MP12 MP16 MP20 MP25 MP30 MP40 MP50 MP63
Fixed 43 95 170 166 305 440 448 700
Drawout 97 220 390 333 490 705 736 1150 1200
MC08 MC16 MC20 MC32 MC40 MC50
Drawout 97 390 333 800 736 1150
*Measured values for 3-pole circuit breakers at rated current, 40° C ambient temperature.
Table 16: Resistance Between Line and Load Terminals, Measured per Pole in Micro-ohms
MountingCircuit Breaker Type
MP08 MP12 MP16 MP20 MP25 MP30 MP40 MP50 MP63
Fixed 14 14 14 8 10 10 10 10
Drawout 32 32 32 17 15 15 9 9 9
MC08 MC16 MC20 MC32 MC40 MC50
Drawout 32 32 17 15 9 9
Altitude ft. (m)
6600 (2000) 9900 (3000) 13200 (4000)
Continuous current correction factor 1.00 0.99 0.96
Voltagecorrection factor
1.00 0.89 0.79
MASTERPACT® MP, MF and MC Circuit Breakers 48049-071-03Instruction Bulletin 01/2002
© 1998–2002 Schneider Electric All Rights Reserved54
48049-071-03 MASTERPACT® MP, MF and MC Circuit Breakers01/2002 Instruction Bulletin
© 1998–2002 Schneider Electric All Rights Reserved 55
Electrical equipment should be serviced only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. This document is not intended as an instruction manual for untrained persons.
Square D CompanyPO Box 30693700 Sixth St SWCedar Rapids, IA, 52406-3069 USA 1-888-SquareD (1-888-778-2733)www.SquareD.com
48049-071-03 01/2002 ECN K455All Rights Reserved
MASTERPACT® MP, MF and MC Circuit Breakers