Square-d-and-merlin-gerin-mp-and-m-manual.pdf

Instruction Bulletin

48049-071-03 01/2002 Cedar Rapids, IA, USA

MASTERPACT® MP, MF and MC Circuit Breakers

Retain for future use.

MASTERPACT® MP, MF and MC Circuit Breakers Instruction Bulletin

NOTICE

48049-071-03 01/2002

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.

DANGER DANGER 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. 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.

2

© 1998–2002 Schneider Electric All Rights Reserved.

48049-071-03 01/2002

MASTERPACT® MP, MF and MC Circuit Breakers Table of Contents

TABLE OF CONTENTS SECTION 1: INSTALLATION

Recommendations for Storing ..................................................................... 5 Temperature Limits ................................................................................ 5 Circuit Breaker Status ............................................................................ 5 Covering ................................................................................................. 5 Maximum Stacking ................................................................................. 5 Identifying the Circuit Breaker ...................................................................... 6 Unpacking .................................................................................................... 7 MP40 to MP63 Drawout-mounted Circuit Breakers ............................... 8 Handling ....................................................................................................... 9 MP08 to MP30 and MC08 to MC20 Circuit Breakers ............................. 9 MC32 Circuit Breakers ......................................................................... 10 MP40 to MP63 and MC40 to MC50 Circuit Breakers ........................... 11 MF12, MF20 and MF30 Circuit Breakers ............................................. 12 Attaching Rear Terminals .......................................................................... 13 Mounting .................................................................................................... 14 Cable Connection ................................................................................. 14 Bus Bar Connection ............................................................................. 15 Control Wiring ............................................................................................ 16 Fixed-mounted Circuit Breakers ........................................................... 16 Drawout-mounted Circuit Breakers ...................................................... 17

SECTION 2: OPERATION

Disconnecting and Connecting Instructions ............................................... 19 Disconnecting Instructions ................................................................... 20 Installing the Circuit Breaker in the Stationary Assembly ..................... 21 Connecting Instructions ........................................................................ 22 Operating ................................................................................................... 23 Charging Instructions ........................................................................... 23 Closing Instructions .............................................................................. 23 Opening Instructions ............................................................................ 24 Resetting Instructions ........................................................................... 24 Locking ...................................................................................................... 24 Locking by Key Interlock ...................................................................... 24 Locking by Padlock .............................................................................. 25 Locking by Door Interlock ..................................................................... 25 Spring Interlock .................................................................................... 26

SECTION 3: CONTROL UNIT TYPES

STR 18 M Control Unit ............................................................................... 28 STR 28 D Control Unit ............................................................................... 30 STR 38 S Control Unit ............................................................................... 32 STR 58 U Control Unit ............................................................................... 34 Control Unit Options .................................................................................. 36 Pre-trip and Overload Indication Option ............................................... 36 Thermal Memory Limitation .................................................................. 37 Ammeter Option ................................................................................... 38 Fault Indication Option ......................................................................... 39 Battery Option ...................................................................................... 40 Load Monitoring Option ........................................................................ 40 Segregated Alarm Switch Option ......................................................... 41 Ground-fault Protection Option ............................................................ 41 Zone-selective Interlocking Option ....................................................... 42 Transmit Data from Trip Unit Option .................................................... 42

© 1998–2002 Schneider Electric All Rights Reserved

3

Document Subtitle (In header) Table of Contents

48049-071-03 01/2002

SECTION 4: MAINTENANCE

Routing Inspections .................................................................................... 44 Electrical Maintenance ............................................................................... 44 Check Arc Chutes ...................................................................................... 45 Check Contacts .................................................................................... 45 Wiring Diagram .......................................................................................... 46

SECTION 5: SET-UP GUIDE

Minimum Enclosure .................................................................................... 48 Clearance Information ................................................................................ 49 Stacking Configurations ............................................................................. 50 Cumulative Loading ................................................................................... 51 Temperature Derating ................................................................................ 52 Power Dissipation ...................................................................................... 53 Resistance ................................................................................................. 53 Altitude Correction Factors ......................................................................... 53

4

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

SECTION 1— INSTALLATION

DANGER HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

• • •

Hex-head wrenches Straight-blade screwdrivers (large and small) Wire stripper

• 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.

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:

• • •

Spring discharged Connected position

Store the circuit breaker only in the original shipping carton or other protective weatherproof covering.

06313219

Covering

Main contacts open

06313220

Maximum Stacking MP08 to MP30 ≤3

MP40 to MP63 ≤2

© 1998–2002 Schneider Electric All Rights Reserved

5

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

Figure 1:

Location of Markings on Circuit Breaker

06313221

IDENTIFYING THE CIRCUIT BREAKER

48049-071-03 01/2002

Electrical accessories identification label (fixed mounting)

Name label giving rating, interrupting ratings and rated voltage

Serial: Control diagram no.: Sensor. . .In: Instantaneous override:

Location of Markings on Stationary Assembly

06313222

Figure 2:

Manufacturing no. Wiring diagram no. Sensor rating Instantaneous pickup

Circuit breaker stationary assembly Accepts frame size: MP/MC A max.

Frame size Type

Wiring diagram no. Standard or specific diagram no. Serial

6

Manufacturing no.

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

UNPACKING MP08 to MP30 and MC08 to MC32 Fixed-mounted Circuit Breakers

06313223

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).

Figure 3:

Unpacking Drawout-mounted Circuit Breaker

06313224

06313225

Drawout-mounted Circuit Breaker with Stationary Assembly

Connected

06313226

Disconnected

Remove four bolts, nuts and washers.

Figure 4:

Unpacking Drawout-mounted Circuit Breaker Delivered without Stationary Assembly

06313228

06313227

Drawout-mounted Circuit Breaker without Stationary Assembly Circuit breaker is delivered upside down. Place another pallet next to shipping pallet. Rotate circuit breaker onto terminals, then onto its bottom on other pallet.

06313232

06313231

Remove four bolts, nuts and washers.

Remove four bolts, nuts and washers.

© 1998–2002 Schneider Electric All Rights Reserved

7

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

Unpacking Stationary Assembly 06313230

Figure 5:

06313229

Stationary Assembly Only If present, remove strapping tape holding the clusters.

48049-071-03 01/2002

Remove four bolts, nuts and washers.

MP40 to MP63 Drawout-mounted Circuit Breakers

Figure 6:

Unpacking Stationary Assembly

1

2

2

2. Position another pallet and rotate circuit breaker. 3. Remove plastic shipping caps.

06313233

1. Remove four bolts, nuts and washers.

1

8

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

HANDLING MP08 to MP30 and MC08 to MC20 Circuit Breakers

DANGER HAZARD 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.

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.

Failure to follow this instruction will result in death or serious injury. Table 1:

3-pole Circuit Breaker Weights

Circuit Breaker Type

Stationary Assembly lbs. (kg)

Circuit Breaker lbs. (kg)

Terminals

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)

Figure 7:

Using the Lifting Flanges

06313234

lbs. (kg)

Circuit Breaker

Figure 8:

Stationary assembly

Using a Lifting Sling Cable slings 0.40 in. (10 mm) dia. max.

06313235

*Optional terminals.

Stationary assembly

Circuit Breaker

CAUTION

Figure 9:

Using an Electrical or Mechanical Platform Lift

Do not let the forks of a fork lift protude past the rear of the circuit breaker.

06313236

HAZARD OF EQUIPMENT DAMAGE

Failure to follow this instruction can result in equipment damage.

Circuit Breaker

© 1998–2002 Schneider Electric All Rights Reserved

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MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

MC32 Circuit Breakers

DANGER HAZARD 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.

The 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. Figure 10:

Using a Lifting Sling for Circuit Breaker

06313237

Failure to follow this instruction will result in death or serious injury.

Compensation bar not supplied; hooks supplied upon request.

Table 2: Type

Stationary Assembly

Circuit Breaker

Terminals

lbs. (kg)

lbs. (kg)

lbs. (kg)

132 (60)

198 (90)

88 (40)

Figure 11:

Using a Lifting Sling for Stationary Assembly Cable slings: 0.40 in. [10 mm] dia. max.

06313238

MC32

3-pole Circuit Breaker Weights

CAUTION

Figure 12:

Rod dia.: 0.48 in. [12 mm]

Using an Electrical or Mechanical Platform Lift

HAZARD OF EQUIPMENT DAMAGE

3.92 in. (100 mm) max.

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.

H = 22 in. (559 mm)

Failure to follow this instruction can result in equipment damage.

Assembly

10

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

MP40 to MP63 and MC40 to MC50 Circuit Breakers

DANGER HAZARD 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.

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. Figure 13:

Cable slings: 0.40 in. [10 mm] dia. max. 30 in. [800 mm] min.

Stationary Circuit Assembly 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)

CAUTION

Figure 14:

Using a Lifting Sling for Stationary Assembly Cable slings: 0.40 in. [10 mm] dia. max. 30 in. [800 mm] min.

06313241

Type

3-pole Circuit Breaker Weights

06313240

Failure to follow this instruction will result in death or serious injury.

Table 3:

Using a Lifting Sling for Circuit Breaker

Figure 15:

Using an Electrical or Mechanical Platform Lift

• 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.

06313239

HAZARD OF EQUIPMENT DAMAGE

Failure to follow this instruction can result in equipment damage. Frame

© 1998–2002 Schneider Electric All Rights Reserved

Stationary assembly

11

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

MF12, MF20 and MF30 Circuit Breakers

DANGER HAZARD 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.

To 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. Figure 16:

Using a Lifting Sling (MF12 and MF20 Circuit Breakers) Cable slings: 0.40 in. [10 mm] dia. max.

06313243

Failure to follow this instruction will result in death or serious injury.

Figure 17:

CAUTION

1 1

Using a Lifting Sling (MF30 Circuit Breaker) Cable slings: 0.40 in. [10 mm] dia. max.

HAZARD OF EQUIPMENT DAMAGE

06313245

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.

3-pole Circuit Breaker Weights

Type lbs. (kg)

Circuit Breaker lbs. (kg)

Terminals lbs. (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) Use a sling to support the circuit breaker.

06313246

Table 4:

H = 21 in. [533 mm] H = 25 in. [635 mm]

12

MF12 Circuit Breaker

MF20 and MF30 Circuit Breakers

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

ATTACHING REAR TERMINALS Table 5:

Circuit Breaker Types and Attachment Fixed Circuit Breakers

MP08, MP12, MP16 and MC08 to MC16

MP08, MP12, MP16

Attaching Rear Terminals*

06313247

06313248

06313248

Drawout Circuit Breakers

MP20 06313249

06313249

MP20 and MC20

Screws: M10, 2-2/5 in. [60 mm] long. Tightening torque = 375 lb-in (42 N•m). Use 11/16 in. hex-head wrench.

MP25 to MP32 06313250

06313250

MP25 to MP32

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

or

06313255

MP50, MP63 and MC50

06313255

MP50, MP63 and MC50

or

06313250

06313254

06313254

MP40 and MC40

*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.

© 1998–2002 Schneider Electric All Rights Reserved

13

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

MOUNTING

CAUTION

Distribute weight of the equipment uniformly over a rigid mounting surface (such as crossbeams or a metal floor).

Distribute weight over a rigid mounting surface.

The mounting plate should be perfectly flat. This eliminates any risk of deformation which could interfere with correct operation of the circuit breaker.

Failure to follow this instruction can result in equipment damage.

Figure 19:

Weight Distribution on Mounting Plate 06313259

HAZARD OF EQUIPMENT DAMAGE

Cable Connection

DANGER HAZARD 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.

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).

Failure to follow this instruction will result in death or serious injury.

CAUTION HAZARD OF EQUIPMENT DAMAGE

Figure 20:

Cable Connections 06313260

\

A

B

Carefully follow all instructions for making electrical connections and supporting and clamping bus bars. Failure to follow this instruction can result in equipment damage.

14

C

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

Bus Bar Connection

DANGER HAZARD 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.

Bus 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. 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)

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. 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)

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.

CAUTION

Figure 21:

Bus Bar Connection C*

HAZARD OF EQUIPMENT DAMAGE

Failure to follow this instruction can result in equipment damage.

06313261

Carefully follow all instructions for making electrical connections and supporting end clamping bus bars. A

B

*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).

© 1998–2002 Schneider Electric All Rights Reserved

15

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

Table 8:

Bus Bar Connection Expected Short-circuit Current (kA rms) 30

50

65

80

100

150

11.88 (300)

9.88 (250)

7.89 (200)

6.00 (150)

6.00 (150)

11.89 (300)

9.88 (250)

7.88 (200)

7.88 (200)

7.88 (200)

MP08 to MP16 and MC08 to MC16 Circuit Breakers Dimension C in. (mm)

13.75 (350)

MP20 to MP63 and MC20 to MC50 Circuit Breakers Dimension C in. (mm)

13.75 (350)

CONTROL WIRING

DANGER HAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION

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).

• 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. 1. Install conductor. 06313262

Fixed-mounted Circuit Breakers

2

1

1

06313262

2. Remove transparent shield.

16

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

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.

1 06313262

3

1 2

2 3

CAUTION

4. Route control wires away from the arc chutes. Replace the transparent cover.

HAZARD 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.

1. Remove the front terminal cover.

06133263

Drawout-mounted Circuit Breakers

2. Determine the terminal number (1) according to the wiring label (2). Wiring diagrams are also located at the end of this bulletin.

06133263

1

2

© 1998–2002 Schneider Electric All Rights Reserved

17

MASTERPACT® MP, MF and MC Circuit Breakers Section 1—Installation

48049-071-03 01/2002

3. Connect the control wires using a small screwdriver and replace the front terminal cover.

3

3 1 2

06313264

1 2 C

SDE

254 262

C12 C11

or MX

LT alarm

or XF MN

PAF

MCH

OF1

OF2

OF3

OF4

C2 C1 A4 A1 D4 D1 252 251 254 262 B4 B1 14 11 12 24 21 22 34 31 32 44 41 42

O

2nd MX

84

O

LR1 LR2

F

211 212 221 222 241 244 231 234 81 82

F

or

R V R1 R2 C

FV

T1 T2 V

F1 F2

WT

D4 D1

MNR

Z11 Z12 Z21 Z22 e+ e-

Z

Control Unit (Left-hand Side)

Accessories (Right-hand Side)

4. Route control wires away from arc chutes.

HAZARD OF EQUIPMENT DAMAGE Do not let wires interfere with action of the disconnecting block.

06313265

CAUTION

Failure to follow this instruction can result in equipment damage.

18

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

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.

06313266

CONNECTED position

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:

TEST position

• • •

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.

DISCONNECTED position

WITHDRAWN position

© 1998–2002 Schneider Electric All Rights Reserved

When a racking crank remains inserted or a circuit breaker is not completely disconnected, the extraction of the right rail is prevented.

19

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

Disconnecting Instructions

DANGER If the circuit breaker is not opened before disconnecting, it will open automatically during disconnection.

HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

1. Remove the racking crank from its storage hole, insert it into the racking slot, and engage the mechanism.

06313267

• 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.

2

1

Failure to follow this instruction will result in death or serious injury. 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.

06313267

If the racking crank is not removed, the right rail will not fully extend.

connected test disconnected

4. Using the two extension rail handles, pull the circuit breaker out.

06313267es

5. Remove the circuit breaker using one of the lifting methods explained in Handling, page 9.

20

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

Installing the Circuit Breaker in the Stationary Assembly

1. Pull out the two extension rails by their handles.

06313268

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.

CAUTION HAZARD OF EQUIPMENT DAMAGE

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.

Do not let the forks of a fork lift protrude past the rear of the circuit breaker. 06313268

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.

06313268

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.

© 1998–2002 Schneider Electric All Rights Reserved

21

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

Connecting Instructions

DANGER

1. Insert and engage racking crank into the racking slot.

HAZARD OF ELECTRIC SHOCK, BURN, OR EXPLOSION

NOTE: This procedure is possible only if:

• 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.

— drawout mechanism padlocks have been removed,

— circuit breaker is in DISCONNECTED position, — 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.

06313267

Failure to follow this instruction will result in death or serious injury.

2

1

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.

06313269

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.

06313269

1

2

22

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

OPERATING 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.

06313270

Charging Instructions

Manual Charging

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 storedenergy indicator window must show a yellow “charged.''

06313271

Closing Instructions

Electrical Charging

ON

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.

© 1998–2002 Schneider Electric All Rights Reserved

23

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

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.

06313272

Opening Instructions

48049-071-03 01/2002

OFF

Resetting Instructions

CAUTION HAZARD OF EQUIPMENT DAMAGE

The 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.

06313273

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.

LOCKING Locking by Key Interlock

Figure 22:

Locking by Key Interlock (VSKA) 2 3

1

Locking in open position: 1. Push the push OFF button 2. Insert and turn the key counterclockwise 3. Remove the key

OFF

This locking can be in DISCONNECTED position or in all positions: CONNECTED, TEST and DISCONNECTED (upon request). Locking by Key Interlock (VSKC)

06313276

Figure 23:

2 3

Locking in the DISCONNECTED position: 1. Disconnect the circuit breaker, 2. insert key and turn counterclockwise and 3. remove the key.

24

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

Figure 24:

Locking by Padlock (VBP)

I

I

06313275

Locking by Padlock

ush ON

O sh OFF

ush ON

O sh OFF

Shackle diameter: 1/4 to 5/16 in. [6 to 8 mm]

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) 2

06313277

1

Shackle diameter: 1/4 to 5/16 in. [6 to 8 mm]

This locking prevents insertion of the racking crank and racking the circuit breaker into its stationary assembly. Locking by Padlocking Device 06313280

Figure 26:

Figure 27:

Locking by Door Interlock (VDP)

06313278

Locking by Door Interlock

The door interlock prevents the door from opening when the circuit breaker is in the CONNECTED and TEST positions. © 1998–2002 Schneider Electric All Rights Reserved

25

MASTERPACT® MP, MF and MC Circuit Breakers Section 2—Operation

48049-071-03 01/2002

06313279

The hook can be mounted on either side. To change hook location:

1 B

A B

A

2

Figure 28:

Spring Charged Interlock 06313281

Spring 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.

26

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

06313282

06313283

SECTION 3— CONTROL UNIT TYPES

STR 18 M Control Unit

push to reset

Overcurrent protection •

Instantaneous

Options •

None

STR 18 M

IG

LI

L

G off

LIG

I

reset V

push to reset

LG

I

12

14

2

22 max

8

MERLIN GERIN I

O

I3

I2

I1 90%

push OFF

I push ON

STR 58 U

frame size 2000A

discharged

20% tr

Ir

.92 .95 60

.9

.88

Io=3000A %Ir

105

.98 30

.85

1

.8

xIo

cat. no. 54775

for masterpact with sensors

Im

5

4

2 1.5

I Ir :

t Ir fault

O OPEN

240

.2

600 800

400 320 250

I

i +SÐ

.4 .3

.3

.2 .1 .1 2 on I t off

1200

A

Ic1 .9

R

Ic2.8

.93 .95

.7

.98

.6

.85 .9

.86 .85 .8

ÐT+

Ð

T

th .4

1000 .2

test

+

off

2

Ih

500

th

test

22

4

th : Im fault tm

fault

N° LM-8792

17

xIn tr

Ih

Doles. Issue

interrupting rating amps max RMS sym Amps Volts 75K 240 75K 480 75K 600 75KA short time rating

.3

.1 0 .1 2 on I t off

.2

12

8

E63335 List. UND. LAB. O CIRCUIT BREAKER

00000

480 15 at 1,5Ir

6 .3 8 10

xIo

6

Im :

120

tm.4

In = 6000A

3

F

xIn

operation cubical suitable for continious in a minimum inches at 100% rating by W21 by D14.1/4 space H17.5 not required ventilation is

50%

90

19

4

masterpact

MP20 H1 circuit breaker 3 pole 600V 50/60Hz

1 xIr

Icu 380/440V 75KA 660V short time rating sec. Icw=75KA 0.5

.95 1

.5

690V 50/60Hz IEC 957-2 rating interrupting 75KA Icu 380/440V 75KA 660V 75KA

xIr

test

STR 28 D Control Unit

push to reset

connected test disconnect

ed

I1

I2

I

I3

Overcurrent protection • •

Long-time Instantaneous

Options

90%

STR 28 D

•

50%

Ammeter

20% Ir 90

.9

.92 .95

.88

%Ir .98

.85

105

1

.8

xIo Im

4

5

3

6

2 1.5

8 10

xIr t

Ir : Ir

Im :

Im

i +

Ð

test

STR 38 S Control Unit

push to reset

Io = Rating plug ln = Sensor rating lr = Long-time pickup tr = Long-time delay lm = Short-time pickup tm = Short-time delay l = Instantaneous pickup lh = Ground-fault pickup th = Ground-fault delay

I1

I2

I

I3

Overcurrent protection • • •

Long-time Short-time Instantaneous

90%

STR 38 S

Options

50%

20% Ir 90

.9

• • •

.92 .95

.88

%Ir .98

.85

105

1

.8

xIo Im

4

tm

.4

5

3 2 1.5

8

.2

.2

.1 .1 0 on I2t off

10

xIr t

.3

6 .3

Ammeter Fault Indicators Ground-fault Protection

I

Ir : Ir fault

Im : max. tr

off

xIn

th : Ih

Ih

500

fault

Im fault tm

th

th

600 800

400

.4

T

.4 .3

.3

1000 .2

320 I

250

.2 .1 .1 on I2t off

1200

A

i overcurrent

+

Ð

Ð

+

test ground

F test

V

push to reset

reset V

I+T

L+I

L

off

L+I+T

I

T

L+T

I1

I2

I

I3

90%

STR 58 U

20% Ir 90

tr

.9

120 .92 .95 60

.88

240

%Ir .98 30

.85 1

.8

4

tm

.4

5

3

8

.2

.2

.1 .1 0 on I2t off

10

xIr I Ir :

.3

6 .3

2 1.5

norm min.

τ tr t

480 15 at 1.5Ir

xIo Im

12

14

8

19

Ir fault

Im :

4

22 Max.

2 tr

xIn

th :

Ih 1200A Max th .4 500 600 400 800 .3

Ih fault

Im fault tm

th

320 250

I

i overcurrent

+

Ð

Ð

+

test

A

Ic1 .86

.93 .95

.7

.98

.6

.85

ground

.8

1

xIr

T

.4 .3

1000 .2 .2 .1 .1 1200 on I2t off

Ic2

.9

.85 .9

.8

Overcurrent protection • • •

Long-time Short-time Instantaneous

Options

50%

105

STR 58 U Control Unit

R

• • • • • •

Ammeter Fault Indicators Ground-fault Protection Zone-selective interlocking Load Monitoring Communication

.95 .5

1

xIr

F test

© 1998–2002 Schneider Electric All Rights Reserved

27

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

STR 18 M CONTROL UNIT

1. Fault trip indicator reset button prevents reclosing of circuit breaker after fault until reset.

06313284

Description Settings Instantaneous Pickup (short-circuit)

1

push to 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)

BU

ME PBD STR 18 M

2 5

I

12

14

8

19

4 2

22 max

3

xIn

I

12

14

8

19

4 2

22 max

xIn + test

Ð

4 5

28

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

1. Before energizing main circuits, open and discharge circuit breaker.

06313285

I push

O OFF push

ON

ed harg

disc

OFF d ecte

conn

test

d ecte conn

dis

06313286

2. Adjust control unit.

push to reset

In 2000 A (Example)

STR 18 M

N1-H1 (800–3200 A) 8 2

In=2000 A

I

xIn

I

8 12 6 17 4 22 2 Max.

off

N1-H1 (4000–5000 A H2 2 8

I

2 to Max

Max

I = 8 x In = 16000 A

3. Close circuit breaker.

06313287

I push

O OFF push

ON

ON d ecte

conn

test

d ecte conn

dis

4. Test the control unit.

06313288

BU

ME The complete test kit can simulate a short circuit.

push to reset

I xIn

STR 18 M

+ Ð test

I xIn

MERLIN

GERIN

With the mini test kit

© 1998–2002 Schneider Electric All Rights Reserved

29

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

06313289

STR 28 D CONTROL UNIT Description

1

push to reset

Settings Adjustable

1. Fault trip indicator reset button prevents reclosing circuit breaker after fault until reset 2. Measure the current

Ir Long-time setting (overload)

I

3. Indicates the rate of load (%tr)

I

4. Current sensor rating (In)

Fixed

5. Rating plug (Io)

I1

I2

I

I3

3

7. Adjust Im (instantaneous)

STR 28 D

8. Overload indicator 10. Test the control unit 11. Lock the control unit settings

tr Long-time delay

90%

6. Adjust lf (long-time setting)

9. Control unit setting values

Im Instantaneous setting (short-circuit)

2

BU

ALR

50%

ME

20%

4

I

see page 38

11 Ir

PBD

Options Option

90

5 .9

.92 .95

.88

%Ir .98

.85

105

6

1

.8

xIo Im

4

5

3

6

2 1.5

8

7

10

xIr t

8 9

Ir : Ir

Im :

Ir

.9

.92 .95

.8

1

.88

.98

.85

xIo

Im

Im i + test

Ð

10 11

4

5

3

6

2 1.5

8 10

xIr

30

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

1. Before energizing main circuits, open and discharge circuit breaker.

06313285

I push

O OFF push

ON

ed harg

disc

OFF d ecte

conn

test

ted

nnec

o disc

2. Adjust control unit. 06313290

Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A push to reset

Io = 1600 A Io

I1 I2 I3 90%

STR 28 D

50%

In= 2000 A

20%

0.63

0.8

0.5

1

Ir .88 .85

.9 .92 .95 .98 .8 1

In

2000 A

Io

1600 A

Ir

Im

0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0

Ir

0.8 to 1 Io

Ir

Ir = 0.90 x Io = 1440 A

xIo Im xIo t

Im i

4 3 2 1.5

Im 1.5 2.0

5 6 8 10

3.0 4.0 5.0 6.0

8.0 10.0

test

Im = 5 x Ir = 7200 A

Im

1.5 to 10 Ir

3. Close circuit breaker.

06313287

I push

O OFF push

ON

ON d ecte

conn

test

d ecte

onn disc

4. Test the control unit.

06313291

BU

ME

push to reset

The complete test kit can simulate: —an overload —a short-circuit

xIo t

I1 I2 I3 90%

+ Ð

STR 28 D

50%

i

test 20%

Ir xIo Im xIo t

GERIN MERLIN

i test

With the Mini Test Kit

© 1998–2002 Schneider Electric All Rights Reserved

31

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

Description 1. Fault trip indicator reset button prevents reclosing circuit breaker after fault until reset. 2. Measure the current.

06313292

STR 38 S CONTROL UNIT

Settings Adjustable

I

3. Indicates the rate of load (%tr)

I

4. Current sensor rating (In) 5. Overload indicator

I1

ALR

6. Rating plug (Io)

3

Im Short-time setting (short-circuit)

4

tm Short-time delay I2t on or off

16 20%

10. Control unit setting values

Ir 90

T

.9

.92 .95

.8

1

.88

.98

.85

105

xIo Im

4

W

tm

.4

5

3

8

W

t

.1 .1 0 on I2t off

I

Ir : Ir fault

max. tr

off

xIn

th : Ih

Ih

500

fault

Im fault tm

th

600 800

400 320

ME

I

250

A

see page 38

Option

F

see page 39

9

Option

T

see page 41

10

Option

W

see page 41

11 12

Im :

th .3

.4

T

.4 .3

1000 .2 .2 .1 .1 1200 on I2t off

13

Ir

i overcurrent

16. Lock the control unit settings

.2

.2

10

xIr

T 13. Adjust th (ground-fault protection delay) F 14. Fault trip indicator BU 15. Test the control unit

I

8

.3

6 .3

2 1.5

Options Option

5 6 7

%Ir

11. Switch on or off the instantaneous protection (N1/H1 type only)

19. Recall the latest fault trip indicator

Ir Long-time setting (overload)

STR 38 S

9. Adjust tm (short-time delay)

18. Clear fault trip indicator and / or check battery level

2 I

I3

50%

8. Adjust Im (short-time setting)

17. Save fault trip indicator

I2

90%

7. Adjust Ir (long-time setting)

12. Adjust Ih (ground-fault protection)

1

push to reset

PBD

+

Ð

Ð

+

test

PIL

ground

14 15

.88

16

.85

F

F F

+ PIL + PIL

.9

.92 .95

.8

1

.98

xIo

test

17

Im

18 19

4

tm

.4

5

3

.3 .2

6 .3

2 1.5

8

.2

10

xIr

.1 .1 0 on I2t off

I

max.

off

xIn Ih

500

600 800

400

32

.3

.4

T

.4 .3

1000 .2

320 250

th

A

1200

.2 .1 .1 2 on I t off

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

1. Before energizing main circuits, open and discharge circuit breaker.

06313285

I push

O OFF push

ON

ed harg

disc

OFF d ecte

conn

test

ted

nnec

o disc

2. Adjust control unit. Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A 06313293

lo = 1600 A

2000 A

push to reset

Io

Ir

0.63

0.8

0.5

1

.88 .85

I1 I2 I3 90%

1600 A

.9 .92 .95 .98 .8 1

Im

In Io

STR 38 S

50%

In = 2000 A

0.5

Im

Ir

4 3 2 1.5

xIo tm xIo t

tm

.4

5 6 8 10

.3 .2

Ir 1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.0

.3 .2 .1

.1

0

I

Im

xIn Ih

i

0.8 to 1.0 Io

Ir

Ir = 0.90 x Io = 1440 A

15

20%

Im

0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0

tm

Im

Im = 5.0 x Ir = 7200 A

1.5 to 10.0 Ir off

T

th xIn

I

test

I

I (H1) Max Max Max Max Max Max Max off

F

test

Max.

Max. off xIn

3. Close circuit breaker. Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A In 2000 A

06313293

Io = 1600 A push to reset

Io

Ir

0.63

0.8

0.5

1

.88 .85

I1 I2 I3 90%

Im

1600 A

Io

.9 .92 .95 .98 .8 1

Ir

0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0

tm

50%

In = 2000 A

0.5

15

20%

Im

Ir

4 3 2 1.5

xIo tm

Im xIo t

5 6 8 10

tm

.4

.3 .2

Im 1.5 2.0 3.0 4.0 5.0 6.0 8.0 10.0

.3 .2 .1

.1

0

I

i

Im

Im = 5 x Ir = 7200 A

xIn Ih

th

0.8 to 1.0 Io

Ir

Ir = 0.90 x Io = 1440 A

STR 38 S

1.5 to 10.0 Ir

T

xIn

I

test

I H1 Max Max Max Max Max Max Max off

F

I

test

Max

Max. off xIn

4. Test the control circuit.

06313285

I push

O OFF push

ON

06913298

BU

ME t

push to reset

xIn Ih

ed

overcurrent Ic1

90%

harg

+ Ð

test

STR 58 U

50%

Ð ground

OFF

20%

ecte

d

test

xIr

xIr

test

tr xIo

Im

at 1.5Ir tm

xIo t

I

cted

xIn

onne

disc

T

R

F

Ir

conn

th

Ic2

xIn

I1 I2 I3

disc

The complete test kit can simulate: —an overload —a short-circuit —a ground-fault

I

Ih

i Ic1

th

T

Ic2

R

GER MERLIN

IN

xIn

test xIr F

test

© 1998–2002 Schneider Electric All Rights Reserved

xIr

With the Mini Test Kit

33

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

STR 58 U CONTROL UNIT Description 1. Fault trip indicator reset button prevents reclosing of circuit breaker after fault until reset FV 2. Select the remote indicated fault trip I 3. Measure the current

06313295

Settings Adjustable V

push to reset

reset V

T

L+T L

2

off

tr Long-time delay

I2

5 STR 58 U

6. Maximum protection rating

6

50%

ALR

7

8. Rating plug (Io)

20%

9. Adjust lr (long-time setting)

Ir 90

10. Adjust tr (long-time delay)

tr

.9

.88

120 .92 .95 60

.85

.98 30

8 9

240

10 11

%Ir 105

1

.8

Im

12. Adjust tm (short-time delay)

norm min.

τ tr

13. Decrease thermal memory after tripping 15. Adjust lh (ground-fault protection) 16. Adjust th (ground-fault protection delay)

T

Im :

.2 .1

8

19 22 Max.

W

500 400

Im fault tm

th

600 800

320 I

250

i +

Ð

Ð

+

test

Ic1

.3

Ic2

.9

.86

.93 .95

.7

.8

.98

.6

1

xIr

.85 .9

.8

.95 .5

see page 39

Option

FV

see page 41

Option

R

see page 40

Option

T

see page 41

Option

W

see page 41

15

Option

Z

see page 42

16

Option

C

see page 42

17 R

18

1

xIr

F

T

.4

1000 .2 .2 .1 .1 1200 on I2t off

.85

ground

F

A

.4 .3

Option

13 14

.1 0 on I2t off

4

Options Thermal memory limitation see page 37 function see page 38 Option I

12

14

xIn Ih 1200A Max th

th :

overcurrent

18. Adjust Ic2 (load monitoring)

.2

10

12

2 tr

fault

R

.3

6 .3 8

Ir fault

W Ih

17. Control unit setting values

.4

5

3

xIr Ir :

T

tm

2 1.5

I

14. Adjust I (instantaneous)

4

480 15 at 1.5Ir

xIo

11. Adjust lm (short-time setting)

tm Short-time delay I2t on or off

4

I

I3

90%

I

7. Overload indicator

Im Short-time setting (short-circuit)

3

I1

5. Indicates the rate of load (%tr)

19 20

Ir

R BU

ME

PIL

21 22 23 24 25

.8

1

4

tm

.4

5

3

23. Clear fault trip indicator and/or check battery level 24. Recall the latest fault trip indicator

F

+ PIL

.3 .2

6 .3 8

.2

.1 .1 0 on I2t off

10

xIr I

480 15 at 1.5Ir

xIo

2 1.5

+ PIL

12

14

8

19

4

22 Max.

2

xIn Ih 1200A Max th

.4

T

.4

500 400

600 800

320

1000 .2 .2 .1 .1 1200 2 on I t off

250

A

Ic1

.3

.3

Ic2

.9

.86

.93 .95

.7

.98

.6

.85 .8

1

xIr

34

240

.98 30

Im

PBD

F

25. Fault trip indicator

120 .92 .95 60

.85

21. Save fault trip indicator 22. Lock the control unit settings

tr

.9

.88

test

19. Adjust Ic1 (load monitoring) 20. Test the control unit

L+I+T

I

I

4. Select phase to measure

Ir Long-time setting (overload)

1 L+I

I+T

.85 .9

.8

R

.95 .5

1

xIr

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

1. Before energizing main circuits, open and discharge circuit breaker.

06313285

I push

O OFF push

ON

ed harg

disc

OFF d ecte

conn

test

ted

nnec

o disc

2. Adjust control unit.

06313296

Example: In = 2000 A; Io = 1600 A; Ir = 1440 A; Im = 7200 A

push to reset

Io 0.63

0.8

0.5

1

I1 I2 I3

Ir

tr

Im

tm

In

2000 A

Io

1600 A

.9 .92 120 240 .88 .95 60 .85 .98 30 480 .8 15 1

90%

Ir

0.8 0.55 0.88 0.90 0.93 0.95 0.98 1.0 Ir = 0.90 x Io =1440 A

STR 58 U

50%

0.5

In = 2000 A

Ir

0.8 to 1.0 Io

15

20%

Ir

Im

tr xIo

4 3 2 1.5

at 1.5Ir tm

Im

tm

.4

5 6 8 10

.3 .2

Im

.3 .2 .1

.1

1.5 2.0 3.0

4.0

6.0 8.0 10.0

5.0

0

xIo t

I

i Ic1

T

th

Im

Im = 5 x Ir = 7200 A

xIn Ih

1.5 to 10.0 Ir

xIn Ic2

R

I

test xIr

xIr

8 6 4

F

test

2

I

12 17 22 off

2

(H2) 2

Max

(H1)

off

2 to Max 2 to off

I

I

Max.

2

06913297

3. Close circuit breaker. push to reset

15É480 s Io

Ir

0.63

0.8

0.5

1

.88 .85

I1 I2 I3 90%

Im

4 3 2 1.5

STR 58 U

50%

20%

Ir xIo

Io

at 1.5Ir tm

Ir

0.63

0.8

0.5

1

xIo I xIn Ih

i Ic1

5 6 8 10

tm

.4

.3

.1

0

.3 .2

tm

.4

.3 .2 .1

.2 .1

I2t

0 to 0.4 s tm off

0

I2t off

tr

Im

t

tr

tr

.9 .92 120 240 .95 60 480 .98 30 15 .8 1

th

T

Ic2

R

4 3 2 1.5

test xIr

tr

.9 .92 120 240 .95 60 480 .98 30 .8 15 1

Im

xIn

xIr

.88 .85

5 6 8 10

tm .4 .3 .2

0.1 to 0.3 s

.3

tm

.2 .1 .1

.3 .2

0

F

tm

.1

test

on

on I2t

2

t

4. Test the control unit.

06313285

I ON push

O OFF

push

06913298

BU

ME t

push to reset

xIn

xIn

I1 I2 I3

overcurrent Ic1

90%

ed

Ð ground 20%

e conn

test

xIr

R

xIr

F

Ir

test

tr xIo

cted

Ic2

+ Ð

test

STR 58 U

50%

OFF

T

th

Ih

harg

disc

The complete test kit can simulate: —an overload —a short-circuit —a ground-fault

I

Im

at 1.5Ir tm

xIo t

I xIn

d

ecte conn

Ih

dis

i Ic1

th

T

Ic2

R

GER MERLIN

IN

xIn

test xIr

xIr

F

test

© 1998–2002 Schneider Electric All Rights Reserved

With the Mini Test Kit

35

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

CONTROL UNIT OPTIONS Pre-trip and Overload Indication Option

The 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:

ALR

• •

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. STR 28 D

LED

Io

Ir

0.63

90

0.8

.88

1

.85

.9

.92 .95

%Ir 105

0.5

.98

06313299

1

.8

xIn

xIo Im

push to reset

4

5

3

6

2 1.5

8 10

xIr

OFF: I < 0.9 Ir

+

I1 I2 I3 90%

STR 28 D

50%

STR 38 S Io 90

20%

Ir

.9

0.63

0.8

.88

.92 .95

0.5

1

.85

.98

90

%Ir

Io

105

Ir xIn

%Ir

1

.8

xIn

105

xIo Im

xIo

4

tm

.4

5

3

Im

.3 .2

6 .3

2 1.5

8 10

xIr

xIo

ON: 0.9 Ir – 1.05 Ir

+

.1 .1 0 on I2t off

.2

t

i

+

test

STR 58 U Io 90

Ir

0.63

0.8

.88

0.5

1

.85

tr

.9

120 .92 .95 60

240

Flashing: I > 1.05 Ir

%Ir 105

.98 30 1

.8

xIn 4

tm

.4

5

3

6 .3

2 1.5

8 10

xIr

480 15 at 1.5Ir

xIo Im

.3 .2

.2

.1 .1 0 on I2t off

When a dc power source is used, power has to be temporarily disconnected to reset the optical triac contacts.

36

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

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.

τtr

06913300

τ tr norm.

τ tr norm

t

push to reset

tr

τ tr

tx

tx = f( θ°ACB)

I Ir

I1 I2 I3

90% STR 58 U

t

50% 20% Ir

tr

xIn

xIo

Im xIo t

τ tr

at 1.5Ir tm

➀

I

➁

τ tr min.

➂

xIn

Ih

th

xIn i Ic1 Ic2

T

t

τ tr min.

R

tr

test

xIr

tr

xIr

F

test

I Ir

τ tr t

© 1998–2002 Schneider Electric All Rights Reserved

37

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

Ammeter Option

I1, I2, I3: Phase current Im: Maximum instantaneous current

I

max: Maximum current stored since the last reset

06313301

Ih: Ground-fault current

push to reset

push to reset

IM

push to reset

I1 I

I1 I2 I3

I2 I

I1 I2 I3

90%

I

I1 I2 I3

90%

STR 38 S

STR 38 S

STR 38 S

50%

50%

50%

20%

20%

20%

20%

push to reset

push to reset

Ih

IN I1 I2 I3

I

Im I1 I2 I3

I

50%

20%

20%

push to reset

max I1 I2 I3

I1 I2 I3

max I

90%

STR 38 S

Im

push to reset

max I

90%

90%

STR 38 S

STR 38 S

50%

push to reset

I

I1 I2 I3

90%

90%

I

90%

50%

push to reset

38

I3 I1 I2 I3

90%

STR 38 S

push to reset

I1 I2 I3

I

90%

STR 38 S

STR 38 S

50%

50%

50%

20%

20%

20%

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

Fault Indication Option

Three light-emitting diodes (LEDs) indicate separately long-time, shorttime/instantaneous and ground-fault trip. A flat push button allows resetting of the indicator after tripping.

F

06313302

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.

push to reset

t

90%

I1 I2 I3

tr

Ih fault th

STR 58 U

50% 20% Ir

th :

tr Ih fault th

i

at 1.5Ir tm

test

xIo t

Ir fault tm :

Im fault tm

I

t

Ir :

Im :

I

tr xIo

Im

t

Ir :

Ir fault

Ir :

Ir fault

tr

th :

Im : th :

Ih fault Im fault tm th I i

Im fault tm I i

test

test

xIn Ih

i Ic1

T

th xIn Ic2

R

F

test xIr

xIr

F

test

test

F

test

Turns off after two minutes (if internal battery power supply).

© 1998–2002 Schneider Electric All Rights Reserved

Call it back

then

reset it.

39

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

Battery Option 2

06313303

F

Test

push to reset

90%

Lithium Battery Size: 3.6 V - 850mA/h Type: SAFT LS3 SONNENSCHEIN TEL-S

1

4

I1 I2 I3

3

STR 58 U

50%

F

Test

20% Ir

tr xIo

Im

FT S A ium A/h th 850m

at 1.5Ir tm

Li 3,5V

xIo t

I

5

xIn Ih

i Ic1

T

th xIn Ic2

R

test xIr F

Battery Test

xIr

test F

6

Test

led F

Test

7

Load Monitoring Option

The option R provides two independant static contacts which operate when the current exceeds adjustable pickup limits.

R

•

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.

06313302

\

push to reset

t

90%

I1 I2 I3

tr

Ih fault th

STR 58 U

50% 20% Ir

Im

t

Ir fault

th :

tr

tr

Ih fault th

Im fault tm

test

xIo I

Ir :

Ir fault tm :

i

at 1.5Ir tm

t

Ir :

Im :

I

tr xIo

t

Ir :

Ir fault

th :

Im : th :

Ih fault Im fault tm th I i

Im fault tm I i

test

test

xIn Ih

i Ic1

T

th xIn Ic2

R

F

test xIr

xIr

test

F

Turns off after two minutes (if internal battery power supply).

Call it back.

40

test

test

F

then

reset it.

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

Segregated Alarm Switch Option

This 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.

FV

A flat push button allows resetting of the indicator after tripping.

06313305

V

push to reset

=0

Fault Type

Selector Switch

I1 I2 I3 90%

V

Overload

Short-circuit Ground-fault

STR 58 U

50%

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

20%

Ir

tr xIo

Im

at 1.5Ir tm

V

xIo t

I

=1

xIn Ih

T

th

i Ic1

V

xIn Ic2

R

test xIr

xIr

F

test

T

0

0

1

Off

0

0

0

To reset remote indicator contact (V output)

V

F

1

test

2

reset V

I+T

L+I

L

off

L+I+T

I

T

L+T

V

Ground-fault Protection Option T

or

W

06313306

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.

T

Ih 1200A Max th

push to reset

500

600

.4

400

800

.3

.3

320

1000

.2

.2

250

I1 I2 I3

.4

.1

1200

0.1 to 1.0 In Max 1200 A

.1

on I2t

A

90%

Ih

off

0.1 to 0.4 sec.

STR 58 U

I2t

50%

400

20%

Ir

tr xIo

Im

*Red zone

320

at 1.5Ir tm

250

xIo t

Ih

I

Ih

th

500 i Ic1

xIn Ic2

600

400

R

.4

800

.3

1000

.2

0.1 to 0.4 sec.

.4 .3

test xIr

320

xIr

F

250

test

A

T = Residual sensing W = Source ground return

© 1998–2002 Schneider Electric All Rights Reserved

1200

0.1 to 1.0 In Max 1200 A

T

Ih 1200A Max th

xIn

on

I2t

off

.2 .1

on I2t

.1

off

th

41

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

Zone-selective Interlocking Option Z

Table 9:

Control Cable

48049-071-03 01/2002

Option 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.

•

Cable size

#18–#14 AWG (1.5 mm2)

Max. length

60 ft. (20m)

Wiring

Twisted in pairs one turn per 4 in. (10 cm)

No. of circuit breakers

Upstream: 2 downstream; no limit

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 zoneselective interlocking option.

— Do not ground. Fault 1 A

Z12 Z11

out

Z22 Z21

in

Circuit breaker (A) will clear the fault instantaneously, regardless of its time delay setting. Fault 2

1 06313307

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. B

Z12 Z11

out

Z22 Z21

in

Z12 Z11 out Z22 Z21

in

Z12 Z11

out

Z22 Z21

in

2

Z12 Z11

out

Z12 Z11

out

Z22 Z21

in

Z22 Z21

in

Transmit Data from Trip Unit Option C

The DIGIPACT® connections communicate over MODBUS™ (J Bus) and require the STR 58 U control unit with option C (communications) and modules:

• •

42

DC 150: Data concentrator SC150: Product indication and control interface

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 3—Control Unit Types

48049-071-03 01/2002

With DIGIPACT® Modules

MASTERPACT® Communications Functions

06313308

Table 10:

DIGIPACT POWERLOGIC Circuit Monitors Function SC150

DC150 Data Concentrator

SC150

2050

2150

2250

2350

c

Basic Protection and Switching

SC150

®

With POWERLOGIC Circuit Monitors Network (SY/MAX)

Status (open/closed/tripped)

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 Circuit Monitor PowerLogic CIRCUIT MONITOR

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 c

Advanced Protection Voltage imbalance

—

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.

© 1998–2002 Schneider Electric All Rights Reserved

43

MASTERPACT® MP, MF and MC Circuit Breakers Section 4—Maintenance

48049-071-03 01/2002

SECTION 4— MAINTENANCE

DANGER HAZARD 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.

ROUTING INSPECTIONS Perform Routine External Inspection:

By:

• •

• •

Opening and closing the circuit breaker manually

•

Testing operation of the control unit with the mini test kit or the complete test kit

Annually for normal operating conditions and After every 1000 operations for harsh operating conditions

Opening and closing the circuit breaker remotely, using the different auxiliaries successively

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

ELECTRICAL MAINTENANCE 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:

•

• • • •

44

When the maximum allowable mechanical endurance without maintenance is reached

The electrical charging mechanism The main contacts The two toggle return springs Mechanical interlocking

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 4—Maintenance

48049-071-03 01/2002

CHECK ARC CHUTES 06313309

DANGER HAZARD OF ELECTRIC SHOCK, BURN OR EXPLOSION

Lift arc-chute out of circuit breaker.

Pry up arc chute.

Check the condition of the arc chute: • arc chute body not broken, • separators not corroded, • if necessary, replace the arc chute

06313310

• 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.

Disconnect power and loosen screws.

Failure to follow this instruction will result in death or serious injury.

Check Contacts

Worn contacts

06313311

≤ 4000 A x 3 Good contacts

Close the circuit breaker to check the wear of the contacts.

Worn contacts

06313312

≤ 4000 A x 4 Good contacts

© 1998–2002 Schneider Electric All Rights Reserved

45

MASTERPACT® MP, MF and MC Circuit Breakers Section 4—Maintenance

48049-071-03 01/2002

WIRING DIAGRAM

06313313

Drawout Position Switches

Auxiliary Switches

Disconnected Test

Connected

Remote Operation

Undervoltage Shunt Readyor Trip to-close Heavy Duty Trip Device

Standard

Spring Charged

Closed Disconnected

Test

Remote Open

Connected

314

Open

312 322 332 342 354 364 374 324 334 344 352 362 372

Remote Close 42 212 12 22 32 234 222 24 244 14 34 44

311

321

Motor Operator

321

321

351

361

D4

254

A4 252

C2

262

B4

371

M F

F

O O MN

standard

211

XF

OF

231 221

MX

11

21

31

41

D1

C1

A1

251

B1

241

Circuit breaker shown in connected, charged and open position, undervoltage release energized.

46

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 4—Maintenance

06313314

48049-071-03 01/2002

Remote Fault and Overload Indication

Ground-fault Protection

Ammeter

Local Fault Indications and Remote Selected Fault Indication

Zone-selective Interlocking

Load Monitoring

Communication Fault Alarm

Overload Alarm

Selected Fault

Ic2 Ic1

Upstream Circuit Breaker

82 841

LR2

S2

S1

T2

T1

V

LT

1

I option

LT alarm

SDE

81

LR1

T or W option5

4

F1

F2

_

+

24 Vdc

ST

F or FV option6

Data Transmission

Z11

Communication Network3

Z12

R1 R2

e+

e-

out

Gnd

Z option V

R option

in

Z212

Z22

C option

C

Downstream Circuit Breaker

1

84 terminal not available with Z or C option. Zone-selective interlocking with downstream circuit breaker requires removal of jumper from drawout circuit breaker. 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. 2 3

© 1998–2002 Schneider Electric All Rights Reserved

47

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

48049-071-03 01/2002

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) D

06313315

W

H

X

X

Table 11: Dimensions Circuit Breaker Type Dimension

MP08–MP20 in. (mm)

MP25–MP30 in. (mm)

MP40–MP50 in. (mm)

MC08–MC20 in. (mm)

MC32 in. (mm)

MC40–MC50 in. (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)

Table 12: Ventilation Circuit Breaker Type Ventilation

MP08–MP20 in. (mm)

MP25–MP30 in. (mm)

MP40–MP50 in. (mm)

MC08–MC20 in. (mm)

MC32 in. (mm)

MC40–MC50 in. (mm)

(both top and bottom)

None

30.00 (200)

30.00 (200)

None

30.00 (200)

30.00 (200)

© 1998–2002 Schneider Electric All Rights Reserved

48

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

48049-071-03 01/2002

CLEARANCE INFORMATION

Dimensions shown are for the maximum interrupting current of the circuit breaker.

06313316

Figure 30:

Drawout Circuit Breaker (with Arc Chute Cover)

Min. = 0

Min. = 0

Figure 31:

3.94 in. [100 mm]

Min. = 0

Min. = 0

Fixed Circuit Breaker (with Arc Chute Cover) Min. = 0

Min. = 0

06313317

3.94 in. [100 mm]

Min. = 0

© 1998–2002 Schneider Electric All Rights Reserved

Min. = 0

7.88 in. [200 mm]

49

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

STACKING CONFIGURATIONS

06313318

MP08 / MP12 MP16 / MP20 MC08 / MC16 MC20

48049-071-03 01/2002

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.

MP25 / Blank

Blank Compartment

Blank Compartment

MC32

MP40 / MP50 MC40 / MC50

17.5

MP08 / MP12 MP16 / MP20 MC08 / MC16 MC20

26

MP25 / MP30

17.5

Circuit Breaker Zone

90.00 in. [2286 mm] MP08 / MP12 84.00 in. MP16 / MP20 [2134 mm] MC08 / MC16 MC20

22

26

17.5 MP25 / MP30

MC32

MP40 / MC40 / Blank

MP08 / MP12 MP16 / MP20 MC08 / MC16 MC20 22

26

17.5

25.25 in. [641 mm] 21.00 in. [533 mm]

21.00 in. [533 mm]

34.25 in. [870 mm] 14.25 in. [362 mm]

: Ventilation

The depth of the circuit breaker zone (14.25 in. [362 mm]) is equal to the depth of the circuit breaker compartment.

50

•

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.

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

48049-071-03 01/2002

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

MP08 and MC08

MP12

MP16 and MC16

MP20 and MC20

MP25

MP30

MP32

Frame Size (A)

800

1200

1600

2000

2500

3000

3200

MP40 and MC40

4000

MP50 and MC50

5000

Number of Allowable Circuit Breakers Cumulative Load Carrying Load 1

800*

2

1300*

3

1800*

4

2200*

1

1200

2

1900

3

2700

4

3400

1

1600*

2

2600*

3

3600*

4

4500*

1

2000*

2

3200*

3

4500

4

5600

1

2500

2

4000

3

5600

1

3000*

2

4800*

1

3200

2

5100

1

4000*

2

6400

1

5000

*ANSI C37.20.1 values.

© 1998–2002 Schneider Electric All Rights Reserved

51

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

48049-071-03 01/2002

TEMPERATURE DERATING

Table 14: Mounting

Drawout

Fixed

Drawout

52

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.

Continuous Current Rating Based on Temperature Ambient Circuit Breaker Type Ambient Temperature MP08H MP12H

MP16H

MP20H

MP25H

MP30H

MP40H

MP50H

MP63H

40°C

800

1200

1600

2000

2500

3000

4000

5000

6300

45°C

800

1200

1600

2000

2500

2900

3900

5000

6000

50°C

800

1200

1550

2000

2500

2750

3700

4800

5700

55°C

800

1150

1450

1900

2400

2600

3500

4500

5400

60°C

800

1100

1350

1800

2300

2450

3300

4200

5100

40°C

800

1200

1600

2000

2500

3000

4000

5000

45°C

800

1200

1600

2000

2500

3000

4000

5000

50°C

800

1200

1600

2000

2500

2900

3900

5000

55°C

800

1200

1550

2000

2500

2600

3700

4800

60°C

800

1150

1450

1900

2400

2450

3300

4500

MC08N

MC08H

MC16H

MC20H

MC32H

MC40H

MC50H

40°C

800

800

1600

2000

3200

3750

5000

45°C

800

800

1500

2000

3000

3550

4800

50°C

800

800

1400

1900

2800

3350

4500

55°C

750

750

1300

1500

2600

3050

4200

60°C

700

700

1200

1700

2420

2850

3800

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Section 5—Set-up Guide

48049-071-03 01/2002

POWER DISSIPATION Table 15:

Power Dissipation Measured* in Watts Circuit Breaker Type

Mounting MP08

MP12

MP16

MP20

MP25

MP30

MP40

MP50

Fixed

43

95

170

166

305

440

448

700

Drawout

97

220

390

333

490

705

736

1150

MC08

MC16

MC20

MC32

MC40

MC50

97

390

333

800

736

1150

Drawout

MP63 1200

*Measured values for 3-pole circuit breakers at rated current, 40° C ambient temperature.

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 Table 16:

Resistance Between Line and Load Terminals, Measured per Pole in Micro-ohms Circuit Breaker Type

Mounting MP08

MP12

MP16

MP20

MP25

MP30

MP40

MP50

Fixed

14

14

14

8

10

10

10

10

Drawout

32

32

32

17

15

15

9

9

MC08

MC16

MC20

MC32

MC40

MC50

32

32

17

15

9

9

Drawout

MP63 9

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 Altitude ft. (m)

© 1998–2002 Schneider Electric All Rights Reserved

6600 (2000)

9900 (3000)

13200 (4000)

Continuous current correction factor

1.00

0.99

0.96

Voltage correction factor

1.00

0.89

0.79

53

MASTERPACT® MP, MF and MC Circuit Breakers Instruction Bulletin

54

48049-071-03 01/2002

© 1998–2002 Schneider Electric All Rights Reserved

48049-071-03 01/2002

© 1998–2002 Schneider Electric All Rights Reserved

MASTERPACT® MP, MF and MC Circuit Breakers Instruction Bulletin

55

MASTERPACT® MP, MF and MC Circuit Breakers

Square D Company PO Box 3069 3700 Sixth St SW Cedar Rapids, IA, 52406-3069 USA 1-888-SquareD (1-888-778-2733) www.SquareD.com

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. 48049-071-03 01/2002 All Rights Reserved

ECN K455