NSJ and NSF Circuit Breakers

Compact

®

NSF and NSJ

150 to 600 A Circuit Breakers

Class 615

CONTENTS Page

Section 1—The Compact

®

Circuit Breaker Line . . . . . . . . . . . . . . . . . 4

Section 2—General Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Section 3—Circuit Breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Section 4—Trip Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Section 5—Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Section 6—Motor Circuit Protectors . . . . . . . . . . . . . . . . . . . . . . . . . 19

Section 7—Mounting Configurations . . . . . . . . . . . . . . . . . . . . . . . . 21

Section 8—Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Section 9—Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Section 10—Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Section 11—Connection Dimensions . . . . . . . . . . . . . . . . . . . . . . . . 53

Section 12—Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Section 13—Supplementary Technical Information . . . . . . . . . . . . . 57

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Table of Contents

TABLE OF CONTENTS

THE COMPACT

®

CIRCUIT BREAKER LINE ....................................................................................... 4

GENERAL CHARACTERISTICS .......................................................................................................... 5

Compliance with Standards ............................................................................................................. 5

CIRCUIT BREAKERS ........................................................................................................................... 8

Ratings and Interrupting Ratings ..................................................................................................... 8

TRIP UNITS ........................................................................................................................................ 10

Trip Units for Compact

®

NSF150 and NSF250 Circuit Breakers .................................................. 10

Trip Units for Compact

®

NSJ400 and NSJ600 Circuit Breakers ................................................... 11

Electronic Trip Unit Test Kits ......................................................................................................... 16

SWITCHES ......................................................................................................................................... 17

Ratings and Interrupting Ratings ................................................................................................... 17

MOTOR CIRCUIT PROTECTORS ..................................................................................................... 19

Ratings and Interrupting Ratings ................................................................................................... 19

MOUNTING CONFIGURATIONS ....................................................................................................... 21

Fixed Mounting .............................................................................................................................. 21

Connections .................................................................................................................................. 21

Plug-in Mounting ........................................................................................................................... 21

Drawout Mounting ......................................................................................................................... 22

CONNECTIONS ................................................................................................................................. 24

Front Connection ........................................................................................................................... 24

Rear Connection ........................................................................................................................... 25

ACCESSORIES .................................................................................................................................. 26

Location ......................................................................................................................................... 26

Connections .................................................................................................................................. 26

Automatic Secondary Disconnecting Blocks ................................................................................. 27

Auxiliary and Alarm Switches ........................................................................................................ 28

Shunt Trip and Undervoltage Trip ................................................................................................. 30

Motor Operator .............................................................................................................................. 31

Rotary Operating Handles ............................................................................................................. 33

Cable Operating Handles .............................................................................................................. 35

Locking Systems ........................................................................................................................... 36

Interlocking Accessories ................................................................................................................ 37

Front Panel Escutcheons .............................................................................................................. 39

DIMENSIONS ..................................................................................................................................... 41

Fixed Mounted ............................................................................................................................... 41

Plug-in and Drawout Mounting ...................................................................................................... 43

Cable Operating Handles .............................................................................................................. 47

Rotary Operating Handles ............................................................................................................. 48

Front Accessories .......................................................................................................................... 51

Interlocking Systems ..................................................................................................................... 52

CONNECTION DIMENSIONS ............................................................................................................ 53

WIRING DIAGRAMS .......................................................................................................................... 55

SUPPLEMENTARY TECHNICAL INFORMATION ............................................................................. 57

Reflex Tripping .............................................................................................................................. 62

Let-through Curves ........................................................................................................................ 63

Current Limiting Curves ................................................................................................................. 65

UL 489 Test Procedure ................................................................................................................. 67

IEC 947-2 Test Procedure ............................................................................................................. 70

Routine and Maintenance Guidelines ........................................................................................... 73

© 1995–2003 Schneider Electric All Rights Reserved

3


Section 1—The Compact

®

Circuit Breaker Line

SECTION 1—THE COMPACT

®

CIRCUIT BREAKER LINE

CIRCUIT BREAKERS—PAGE 8

pus trip

Rated Current (A)

COMPACT

®

15–100

NSE100

Interrupting

Rating at 480 V

N

18

H

—

L

—

SWITCHES—PAGE 17


70

COMPACT

®

NSE100A

pus trip

15–250

NSF150

NSF250

35

65

—

150, 250

NSF150A

NSF250A

150–600

NSJ400

NSJ600

35

65

100

400, 600

NSJ400A

NSJ600A

400–1200

CK400–CK1200

50

65

150

1250–2500

CM1250–CM2500

—

85

—

800, 1200

CK800NA

1600–2500

CM1600HA

CM2000HA

CM2500HA

MOTOR CIRCUIT PROTECTORS—PAGE 19


COMPACT

®

3–75

NSE100A

pus trip

100–250

NSF150A

NSF250A

400–600

NSJ400A

NSJ600A

800–1200

CK800NA

For NSE, CK and CM circuit breakers see appropriate catalog.

4



Section 2—General Characteristics

SECTION 2—GENERAL CHARACTERISTICS

COMPLIANCE WITH STANDARDS

MERLIN

compact

NSF 250 N

600Y/347V 50/60Hz

UL/CSA interrupting ratings

RMS sym. Amps

240V ac

65k

480V ac

600Y/347V ac current limiting

35k

18k

(see curves in catalog)

IEC947.2

220/240V

380/415V

Ics=100% Icu

Ui 750V

~

~

Icu

85kA

36kA

Uimp 8kV cat A

UTE VDE BS CEI UNE NEMA

Compliance with

North American

Standards

Compliance with

International

Standards

Compliance with the Specifications of Marine

Classification

Organizations

Compact

®

NS circuit breakers are built in accordance with Underwriters Laboratories Inc. UL 489

Standard and Canadian Standards Association CSA C22.2 No. 5.02 Standard. Circuit breakers, switches and their accessories, except where noted, are Listed under UL files E63335, E103740,

E103955, and Certified under CSA files LR69561 and LR88980.

Compact NS circuit breakers and their accessories comply also with the following international standards:

•

IEC 60947-1: general rules

•

IEC 60947-2: circuit breakers

•

IEC 60947-3: switches, disconnectors, switch disconnectors, etc.

In that these standards are applied in most countries, Compact circuit breakers and their accessories comply with European (EN 60947-1 and EN 60947-2) and the corresponding national standards:

•

France NF

•

Germany VDE

•

U.K. BS

•

Australia AS

•

Italy CEI

Compact NS circuit breakers have been approved for marine application by the American Bureau of

Shipping, Bureau Veritas, Lloyd’s Register of Shipping, Registro Italiano Navale, Germanischer Lloyd’s and Det Norske Veritas.

They comply with the following standards:

•

UL 489 Supplement SA. Marine use on vessels over 65 feet in length

•

US Coast Guard specifications

•

IEC 92-504 and marine specifications: inclination, vibrations, insulation resistance

•

IEC 803 Electromagnetic Disturbance Immunity


5



Tropicalization

Compact

®

NS circuit breakers comply with NF C 63-100 standard level 2 conditions (95% relative humidity at 45° C or 80% at 55° C, hot and humid climate conditions). The materials used in Compact

NS circuit breakers will not support the growth of fungus or mold.

They also comply with the following standards:

•

IEC 68-2-30 damp heat

•

IEC 68-2-2 dry heat

•

IEC 68-2-11 salt spray

•

IEC 68-2-1 low temperatures

Pollution Degree

Compact NS circuit breakers are certified for operation in pollution degree III environments as defined by IEC standard 947 (industrial environments).

Environmental

Protection

Suitability for

Isolation (Positive

Contact Indication)

Compact NS circuit breakers take into account concerns for environmental protection. Most components are recyclable and parts are marked as specified in applicable standards.

All Compact NS circuit breakers and switches are suitable for isolation as defined in the IEC 947-2

Standard:

•

The isolation position corresponds to the O (OFF position).

•

The operating handle cannot indicate the OFF position unless the contacts are open.

•

Padlocks may not be installed unless the contacts are open

Installation of a rotary handle or a motor mechanism does not alter the functionality of the position indication system.

The isolation function is certified by tests guaranteeing:

•

The mechanical reliability of the position indication system

•

The absence of leakage currents

•

Overvoltage withstand capacity between upstream and downstream connections

Installation in

Class II

Switchboards

Circuit Breaker Marking

Switch Marking

All Compact NS circuit breakers, even when fitted with a rotary handle or a motor mechanism, can be installed through the door of Class II IEC switchboards (as per IEC 664 Standard). Refer to circuit breaker installation instructions prior to installing circuit breaker.

Installation requires no special insulation because Compact NS circuit breakers provide Class II insulation between the front face and all internal circuits.

6




Suitability for

Isolation (Positive

Contact Indication)

The limiting capacity of a circuit breaker is its ability to limit short-circuit currents.

Isc

Prospective

Isc Peak

Prospective

Current

Prospective

Isc

Limited

Isc Peak

Actual

Limited

Isc

Current tsc t

The exceptional limiting capacity of the Compact

®

NS line is due to the double break technique (rapid natural repulsion of contacts and the appearance of two arc voltages in series with a steep wavefront).

The limiting capacity of the Compact NS line greatly reduces the forces created by fault currents in devices. The result is a major increase in breaking performance. In particular, the service breaking capacity Ics is equal to 100% of Icu.

The Ics value, defined by IEC 947-2, is guaranteed by tests comprising the following operations:

•

Breaking a fault current equal to 100% of Icu three times consecutively

•

Checking that the device continues to function normally

•

Conduction of rated current without abnormal temperature rise

•

Protection functions perform within the limits specified by the standard

•

Suitability for isolation is not impaired

Current limiting circuit breakers greatly reduce the negative effects of short circuits on installations.

Longer Service

Life of Electrical

Installations

Thermal Effects

Mechanical Effects

Electromagnetic

Effects

Less temperature rise in conductors, therefore longer service life for cables.

Reduced electrodynamic forces, therefore less risk of electrical contacts or busbars being distorted or broken.

Less disturbance for measuring devices located near electrical circuits.


7

8


Section 3—Circuit Breakers

SECTION 3—CIRCUIT BREAKERS

RATINGS AND INTERRUPTING RATINGS

UL 489 Listed Ratings

pus trip

Compact

®

Circuit Breakers

Number of Poles

Rated Voltage (V)


AC 50/60 Hz

In

40° C

NSF150

3, 4, 4 OSN*

600Y/347

150

Interrupting Ratings (kA rms)

240 V

N

65

480 V

600 Y/ 347 V

35

18

600 V —

*Oversized Neutral Protection: four-pole OSN 125/250N and 150/250N are same ratings as NSF250A.

H

100

65

25

—

IEC 947-2 and EN 60947-2 Ratings

Compact

®


Number of Poles

Rated Insulation Voltage (V)

Rated Impulse

Withstand Voltage (kV)

Ui

Uimp

NSF150

3, 4, 4 OSN*

750

8

Rated Operational Voltage (V)


Ultimate Breaking Capacity (kA rms)

Ue

In

Icu

AC 50/60 Hz

DC

40° C

AC 50/50 Hz 220/ 240 V

380/ 415 V

440 V

500 V

525 V

600/ 690 V

35

30

22

8

N

85

36

690

500

150

H

100

70

65

50

35

10

DC 250 V (1 pole) 50 85

500 V (2 pole in series)

50 85

Service Breaking Capacity Ics

100% 100%

Utilization Category

A A

*Oversized Neutral Protection: four-pole OSN 125/250N and 150/250N are same ratings as NSF250A.

NSF250

3, 4

600Y/347

250

N

65

35

18

—

H

100

65

25

—

NSF250

3, 4

750

8

35

30

22

8

50

N

85

36

690

500

250

65

50

35

10

85

H

100

70

50 85

100% 100%

A A


pus trip


Section 3—Circuit Breakers


Compact

®


Number of Poles



Interrupting Ratings (kA rms)

AC 50/60 Hz

In

40° C

240 V

480 V

600 Y/ 347 V

600 V

NSJ400

3, 4, 4 OSN*

NSJ600

3, 4

600 600

400 (100% Rated Circuit Breaker) 600

N

65

35

—

18

H

100

65

—

25

L

150

100

—

25

N

65

35

—

18

H

100

65

—

25

*Oversized Neutral


Compact

®


Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse

Withstand Voltage (kV)

Uimp

Rated Operational Voltage (V) Ue

Rated Current (A) In

AC 50/60 Hz

DC

40° C

Ultimate Breaking Capacity

(kA rms)

Service Breaking Capacity


*Oversized Neutral

NSJ400

3, 4, 4 OSN*

750

8

690

500

400

N

85

H

100

Icu

AC 50/50 Hz 220/240 V

Ics

DC

(% Icu)

380/415 V

440 V

500 V

525 V

45

42

30

22

70

65

50

35

600/690 V 10

250 V (1 pole) —

500 V (2 pole in series)

—

100%

20

85

85

100%

A A

L

150

150

130

70

50

35

—

—

100%

A

NSJ600

3, 4

750

8

690

500

600

N

85

45

42

30

22

10

—

— 85

100% —

A —

70

65

50

35

20

85

H

100

L

150

100

—

25

L

150

150

130

70

50

35

—

—

100%

A


9


Section 4—Trip Units

SECTION 4—TRIP UNITS

TRIP UNITS FOR COMPACT

®

NSF150 AND NSF250 CIRCUIT BREAKERS

Compact NSF150 and NSF250 circuit breakers are equipped with thermal-magnetic (TM) trip units.

Protection

•

Against overload (1) with a fixed thermal protection

•

Against short circuits (2) with fixed (on NSF150) or adjustable (on NSF250) magnetic protection t

1

1 2

Ir

250 A

Im

10

9

8

7

x 250 A

6

5

Ir Im

TM 250 D

250A / 40

°C

2

0 Ir Im

I

Trip Units for Compact

®

NSF150–NSF250


Rating (A) In

40° C

3P

4P3T

4P4T

Circuit Breaker

50° C

60° C

70° C

Compact

®

NSF150 N/H

Compact

®

NSF250 N/H

TM15DP–TM250DP Trip Units

15 20

14.2

19

13.5

18

12.8

17

■ ■

30 40 50 60

28.5

38

27 36

47.5

45

25.6

34.2

43

■ ■ ■

57

54

51

■

95

90

85

TM100OSN–TM150OSN Trip Units

Phase Neutral Phase

100 150 125

142

135

128

118

112

107

Rating (A)

4P OSN

In

40° C

50° C

60° C

70° C

Overload Protection

Thermal

3P

4P3T

4P4T

4P OSN*

Short-circuit Protection

Magnetic

Neutral Protection

Compact

®

NSF150

Compact

®

NSF250

4P3T

4P4T

4P OSN*

*Oversized Neutral

Non-adjustable

Non-adjustable

400 500 1000

70 80

66.5

76

63 72

60

■

68

■

Neutral

250

237

225

214

90

85

81

77

■

100

95

90

85

■

125

118

112

107

■

Phase

150

142

135

128

Neutral

250

237

225

214

150

142

135

128

■

175

166

158

150

■

Non-adjustable, No Neutral Protection

Non-adjustable

Non-adjustable

Adjustable

1250 1500

5–10 x In

No Neutral Protection

1000 1250 1500

1000 1250 1500

5–10 x In

200

190

180

171

225

213

203

192

■ ■

250

237

225

214

■

10





®

NSJ400 AND NSJ600 CIRCUIT BREAKERS

Compact NSJ400 and NSJ600 circuit breakers are equipped with current sensors and electronic trip units.

Current Sensors

Trip Units

STR23SP,

STR53UP and

STR23SP-OSN

Four different sizes are available and can be mounted with all trip units:

•

NSJ400—150, 250 and 400 A

•

NSJ600—600 A

•

Protection for loads, from 60 to 600 A

— STR23SP and STR53UP for standard protection

— STR23SP-OSN for oversized neutral protection (factory-installed only)

— STR53UP for generator supplied network protection and long cable runs

•

Trip units STR23SP and STR53UP can be mounted on all Compact NSJ400 and NSJ600 circuit breaker types N, H and L

•

Trip unit STR53UP offers a greater number of optional indication and measurement functions, protection settings and ground-fault protection

•

STR23SP and STR53UP available on four-pole circuit breakers with sealable, 3-position neutral protection setting:

— 4P 3D (neutral unprotected)

— 4P 3D + N/2 (neutral protection at 0.5 x Ir) where Ir is trip unit current setting

— 4P 4D (neutral protection at Ir) where Ir is trip unit current setting

Trip Units for Compact

®

NSJ400 and NSJ600


Overload Protection (Long Time)

Tripping

Threshold (A)

Ir

20–70° C

STR23SP STR53UP

Adjustable (48 Settings) 0.4–1 x In

Tripping Time (s)

(Min–Max)

At 1.5 x Ir

At 6 x Ir

At 7.2 x Ir

Fixed

120–180

5–7.5

3.2–5.0

Adjustable

17–25

0.8–1

0.5–0.7

34–50

1.6–2

1.1–1.4

69–100

3.2–4

2.2–2.8

138–200

6.4–8

4.4–5.5

Short-circuit Protection (Short Time)

Tripping

Time Delay

(ms)

Im / Isd

Accuracy

Adjustable (7 Settings)

2–9 x Ir

± 15%

Adjustable (7 Settings) 1.5–7 x Ir

Max. Overcurrent Time Before Tripping Fixed

≤ 40

Total Breaking Time

≤ 60

Short-circuit Protection (Instantaneous)

Tripping Threshold (A)

Fixed

≥ 9 x In

Adjustable Neutral Protection (Three Position Switch)

Adjustable (4 Settings + Constant I

2 t Function)

≤ 15

≤ 60

≤ 60

≤ 140

≤ 140

≤ 230

≤ 230

≤ 350

Adjustable (7 Settings) 1.5–9 x In

277–400

12.8–16

8.8–11

STR23SP OSN

(Oversized Neutral)

Fixed

120–180

5–7.5

3.2–5.0

Adjustable (7 Settings) 2–9 x Ir

Fixed

≤ 40

≤ 60

Fixed

≥ 9 x In

NSJ250/400N NSJ400/600N

Switch Settings

Position 1 4P 3D

Protection Level

No Protection

Position 2 4P 3D + N/2 0.5 x Ir

Position 3 4P 4D 1.0 x Ir

Other Functions

Indication of Fault Type

Equipment Ground-fault Protection (T)

Built-in Ammeter (I)

Zone-selective Interlocking (ZSI)

Communication (COM)

No Protection

0.5 x Ir

1.0 x Ir

■

■

■ (Standard)

■

■

No Protection

0.8 x Ir

1.6 x Ir

No Protection

0.75 x Ir

1.5 x Ir


11



Electronic Trip

Unit STR23SP and

STR23SP-OSN

(Oversized

Neutral)

t

7

1

6

3

1

2 test

+

-

STR 23 SP

Io = sensor

.8

.9

.7

1

.63

.5

x In

Ir long time

.9

.93

.88

.95

.85

.8

1

.98

x Io

Protection

alarm

90

105

%Ir

Im

5 6

4 7

3

9

2

x Ir

Ir Im

3

4

5

0

Ir Im

I

•

Long-time (LT) overload protection, adjustable threshold, based on the actual rms current

— Adjustable threshold (1) using six lo base settings (0.5–1) and fine adjustment Ir with eight settings ranging from (0.8–1)

— Non-adjustable tripping time (2)

•

Short-time (ST) short-circuit protection

— Adjustable threshold Im (3)

— Fixed time delay (4)

•

Instantaneous (I) short-circuit protection, fixed threshold (5)

•

Neutral protection available on standard four-pole circuit breakers; protection level controlled using three-position switch

— 4P 3D: no protection

— 4P 3D + N/2: neutral protection at 0.5 Ir

— 4P 4D: neutral protection at Ir

•

Neutral protection for STR23SP-OSN (oversized neutral) available on four-pole circuit breakers equipped with oversized neutral protection; protection level controlled using three-position switch

NSJ250/400N:


— 4P 3D + N/2: neutral protection at 0.8 x Ir

— 4P 4D: neutral protection at 1.6 x Ir

NSJ400/600N:


— 4P 3D + N/2: neutral protection at 0.75 x Ir

— 4P 4D: neutral protection at 1.5 x Ir

12


Indications

Test

Setting Example



Load indication (LED) in front (6):

•

Lights solid at 90% of Ir threshold

•

Flashes at >105% or greater of Ir threshold

Test connector in front (7) for connection to test kit to check circuit breaker operation after fitting the trip unit or other accessories.

Question: What is the overload protection threshold of a Compact NSJ400 circuit breaker equipped with trip unit STR23SP where Io = 0.5 and Ir = 0.8?

Answer: In x Io x Ir = 400 x 0.5 x 0.8 = 160 A

The same trip unit with the same settings, mounted on an NSJ600 circuit breaker will have the following tripping threshold: In x Io x Ir = 600 x 0.5 x 0.8 = 240 A.

.7

.63

.5

Io

.8

.9

1

.88

.85

.8

.9

Ir

.93

.95

.98

1

x In

400 x 0.5 x 0.8 = 160 A x Io


13



Electronic Trip

Unit STR53UP

t

8 1

2

3 4

5 6 9 7

1

Io

.7

.6

.5

.8 .9

1

1

x In test

+

-

STR 53 UP

Ir

.88

.90 .93

.95

.85

.8

.98

1

x Io tr

4

8

2

0,5 8

(s) @ 6 Ir

Isd

3

4 5

2

6

7

7

1.5

x Ir tsd

(s)

.2

.1

.3

.3

.2

.1

0

0 o n

I 2 t o ff

%Ir

>Ir >Isd

Ii

2

3

4 6

8

9

1.5

x In

9

>Ig

Ig

.4

.3

.2

.5 .6

.7

.8

1

x In tg

(s)

.3

.2

.4

.4

.3

.2

.1

.1

o n

I 2 t o ff test

µ P

In

> Ir

> Im

> Ih

I1 I2 I3

A

tr tsd

Ir Isd li

2

3

4

6

7

5

Test

Self-monitoring

0

Ir Isd I

I

Protection

Overload Indications

(%Ir)

•

Long-time (LT) overload protection, adjustable threshold, based on actual rms current, as defined by IEC 947-2, appendix F

— Adjustable threshold (1) using six lo base settings (0.5–1) and fine adjustment Ir with eight settings ranging from (0.8–1)

— Adjustable tripping time (2)

•

Short-time (ST) short-circuit protection

— Adjustable threshold Isd (3)

— Adjustable time delay (4), with or without constant I

2 t function

•

Instantaneous (Ii) short-circuit protection, adjustable threshold (5)

•

Neutral protection available on standard four-pole circuit breakers; protection level controlled using three-position switch


— 4P 3D + N/2: neutral protection at 0.5 Ir

— 4P 4D: neutral protection at Ir

•

LED (9) lights solid when current exceeds 0.9 Ir

•

LED (9) flashes when current exceeds long-time threshold Ir

Fault Indications

LEDs indicate the type of fault that caused tripping:

•

Overload (LT protection) or abnormal component temperature (>Ir)

•

Short-circuit (ST or instantaneous protection) (>Isd)

•

Ground-fault (if earth-fault protection option is present) (>Ig)

•

Microprocessor malfunction—both (>Ir) and (>Isd) LEDs go on, plus the (>Ig) LED, if the groundfault protection option is present

The LEDs are battery powered with spare batteries supplied in the adapter box. When a fault occurs, the LED indicating type of fault shuts off after approximately 10 minutes to conserve battery power. The fault data is stored in memory and the LED can be re-illuminated by pressing the battery/LED test button (9). The LED automatically goes off and memory is cleared when the circuit breaker is reset.

•

Test connector in front (8) for connection to test kit (see page 16); used to check circuit breaker operation after fitting trip unit or other accessories

•

Test button (9) for (%Ir), (>Ir), (>Im) and (>Ig) LEDs and battery

The circuit breaker trips for both microprocessor faults and abnormal temperatures.

14


Options for

Electronic Trip

Unit STR53UP

Ammeter (I)



Equipment Ground-fault Protection (T)—see (6) and (7), page 14

Type

Tripping threshold

Tripping time (ms)

Residual Current

Ig Adjustable (8 Settings) 0.2–1 x In

Accuracy ± 15%

Max. overcurrent time before tripping (Tg) Adjustable (4 Settings + Constant I

2 t Function) 60, 140, 230, 350

Total Breaking Time -140, -230, -350, -500

A digital display continuously indicates the current of the phase with the greatest load. By pressing a scroll button, it is also possible to display successively the readings of I1, I2, I3 and I neutral. LEDs indicate the phase for which the current is displayed.

In I1 I2 I3

A

Zone-selective

Interlocking (ZSI)

Opto-electronic

Outputs

Communication

(COM)

Possible

Combinations

A number of circuit breakers are interconnected one after another by a pilot wire. In the event of a short-time or earth fault:

•

If a given trip unit STR53UP detects the fault, it informs the upstream circuit breaker which applies the set time delay

•

If the trip unit STR53UP does not detect the fault, the upstream circuit breaker trips after its shortest time delay

In this way, the fault is cleared rapidly by the nearest circuit breaker. In addition, thermal stresses on the circuits are minimized and time discrimination is maintained throughout the installation.

The use of opto-transistors ensures total isolation between the internal circuits of the trip unit and the circuits wired by the user.

Transmission of the following data to Digipact

®

distribution monitoring and control modules:

•

Settings

•

Phase and neutral currents (rms values)

•

Highest current of the three phases

•

Overload condition alarm

•

I

•

T

•

I + T

•

I + COM

•

I + T + COM

•

ZSI

•

ZSI + I

•

ZSI + T

•

ZSI + I + T

•

ZSI + I + COM

•

ZSI + I + T + COM


15



ELECTRONIC TRIP UNIT TEST KITS

The test kits presented below are compatible with Compact

®

and Masterpact

®

MP/MC/M circuit breakers.

Tests performed by test kits are only functional tests designed to electrically test the operating integrity of the trip unit, the flux shifter and the mechanical operation of the circuit breaker. Tests are not designed to calibrate the circuit breaker.

Mini Test Kit and

Hand-held Test Kit

The Mini Test Kit and the new generation Hand-held Test Kit are portable units which require no external power supply. Both are powered by five 9 V alkaline batteries, not supplied. These test kits are used to check operation of the electronic trip unit and circuit breaker tripping. Connection of either test kit is made via the test port on the front of the trip unit.

Mini Test Kit

Hand-held Test Kit

Portable Test Kit and Full-function

Test Kit

The Portable Test Kit and the new generation Full-function Test Kit are calibration units. Both require a power supply of 110 or 240 Vac, 50/60 Hz (two-position selector). These test kits are used to check the operation of the trip unit by measuring actual trip times:

•

At 1.5 x Ir for long-time protection

•

At 15 x Ir for short-time protection

•

At 0.8 x In for ground-fault protection

16

Portable Test Kit Full-function Test Kit



Section 5—Switches

SECTION 5—SWITCHES



pus trip

Compact

®

Switches

Number of Poles

NSF150A

3, 4, 4P OSN*



AC 50/60 Hz 600Y/ 347

150

*Oversized Neutral Protection: four-pole OSN 125/250 and 150/250 are same ratings as NSF250A.

IEC 947-3 Ratings

Compact

®

Switches

Number of Poles


Rated Impulse Withstand

Voltage (kV)


Rated Operational Current (V)

Making Capacity (kA peak)

Short-time Withstand Current

(kA rms)

*Oversized Neutral Protection

Icw

Ui

Uimp

Ue

Ie

8

AC 50/60 Hz

DC

AC23A 690 V

DC23A 250 V

DC23A 500 V (2 poles in series)

Icw (kA rms)

Duration (s)

3.6

2.5

3

690

500

160

160

160

NSF150A

3, 4, 4P OSN*

750

NSF250A

3, 4

600Y/ 347

250

8

4.9

3.5

3

690

500

250

250

250

NSF250A

3, 4

750


17


Section 5—Switches


pus trip

Compact

®

Switches

Number of Poles


AC 50/60 Hz

NSJ400A

3, 4, 4P OSN*

600


400

*Oversized Neutral Protection: four-pole OSN 125/250 and 150/250 are same ratings as NSF250A.

NSJ600A

3, 4

600

600

IEC 947-3 Ratings

Compact

®

Switches

Number of Poles



Voltage (kV)


Rated Operational Current (V)

Making Capacity (kA peak)

Short-time Withstand Current

(kA rms)

*Oversized Neutral Protection

Icw

Ui

Uimp

Ue

Ie

8

AC 50/60 Hz

DC

AC23A 690 V

DC23A 250 V

DC23A 500 V (2 poles in series) 400

7.1

690

500

400

400

Icw (kA rms)

Duration (s)

5

3

NSF150A

3, 4, 4P OSN*

750

8

8

3

690

500

630

630

630

8.5

NSF250A

3, 4

750

Short-circuit

Withstand Current

Molded case switches are identical to molded case circuit breakers, except they are not equipped with trip units and sensors. Molded case switches open when the handle is switched to the OFF position or in response to an auxiliary tripping device such as a shunt trip or an undervoltage release.

These switches open instantaneously at a non-adjustable, factory preset, magnetic trip point calibrated to protect only the molded case switch itself. Magnetic settings:

•

NSF150/250 A switches: 2000 A

•

NSJ 400/600 A switches: 6000 A

These switches are suitable for use on a circuit capable of delivering not more than:

•

240 V: 100 kA for NSF switches and 150 kA for NSJ switches

•

480 V: 65 kA for NSF switches and 100 kA for NSJ switches

•

600 V (600Y/347 for NSF switches): 25 kA

Switches are Listed under UL file E103740 and Certified under CSA file LR 88980.

18



Section 6—Motor Circuit Protectors

SECTION 6—MOTOR CIRCUIT PROTECTORS


UL 489 Recognized Component

pus trip

Compact

®


Number of Poles


Rated Current (A) In

Magnetic Trip Setting Im

AC 50/60 Hz

40° C

NSF150HC

3

600Y/347

150

900-1800


Compact

®


Number of Poles



Voltage (kV)


Ui

Uimp

Ue



(kA rms)



In

Icu

Ics

NSF150HC

3

750

8

AC 50/60 Hz

DC

40° C

AC 50/60 Hz

DC

(% Icu)

690

500

150

HC

100 220/240 V

380/415 V

440 V

500 V

525 V

660/690 V

250 V (1 pole)

10

85

500 V (2 poles in series) 85

70

65

50

35

100%

A

NSF250HC

3

600Y/347

200

1000–

2000

250

1250–

2500

NSF250HC

3

750

8

690

500

200

HC

100

10

85

85

70

65

50

35

100%

A

250


19


Section 6—Motor Circuit Protectors

UL 489 Recognized Component

pus trip

Compact

®


Number of Poles



Magnetic Trip Setting

In

Im

AC 50/60 Hz

40° C

NSJ400HC

3

600

400 (100% Rated

Circuit Breaker)

2000–4000


Compact

®


Number of Poles



Voltage (kV)




(kA rms)



NSF150HC

3

750

Ui

Uimp

Ue

In

Icu

Ics

8

AC 50/60 Hz

DC

40° C

AC 50/60 Hz

DC

(% Icu)

690

500

400

HC

100 220/240 V

380/415 V

440 V

500 V

525 V

70

65

30

35

660/690 V

250 V (1 pole)

20

85

500 V (2 poles in series) 85

100%

A

NSJ600HC

3

600

600

3000–6000

690

500

600

HC

100

70

65

30

35

20

85

85

100%

A

NSF250HC

3

750

8

20



Section 7—Mounting Configurations

SECTION 7—MOUNTING CONFIGURATIONS

FIXED MOUNTING

Refer to circuit breaker installation instructions before installing circuit breaker, accessories or wiring.

Mounting on Rails

Mounting on Backplate Flush Mounting to h trip pus h to trip pus h to trip

CONNECTIONS

See Section 8—Connections for details. Compact

®

NSF and NSJ circuit breakers suitable for reverse feeding.

Front Connection

Rear Connection to h trip

PLUG-IN MOUNTING pus h to trip

Mounting through

Front Panel



21



The plug-in configuration makes it possible to:

•

Extract and/or rapidly replace the circuit breaker without having to touch connections

•

Allow for addition of future circuits at a later date

Parts of a Plug-in

Configuration

When the circuit breaker is in the connected position, the primary voltage is fed through the circuit breaker by means of multiple finger disconnects. Control voltage of internal accessories is provided through secondary disconnects.

Compact

®

circuit breaker (fixed mounted)

•

Set of power and secondary disconnects that are added to the circuit breaker

•

Plug-in base for mounting through a front panel or on rails

•

Safety trip, to be installed on the circuit breaker, which causes automatic tripping if the circuit breaker is ON before engaging or withdrawing it; the safety trip does not prevent circuit breaker operation, even when the circuit breaker is disconnected

•

Mandatory short terminal shields

The plug-in mounting is Listed under UL file E113555 and Certified under CSA file LR 69561.

DRAWOUT MOUNTING

The chassis is made up of two side plates installed on the base and two other plates mounted on the circuit breaker.

Connected

Disconnected Removed

Chassis Functions

All functions of the plug-in base, plus:

•

Disconnected position: the power circuits are disconnected, the circuit breaker is simply

"withdrawn" and may still be operated (on, off, push-to-trip)

•

Circuit breaker may be locked using 1 to 3 padlocks—diameter 0.19 to 0.31 inch (5 to 8 mm)—to prevent connection

•

Auxiliaries can be tested using manual auxiliary connector

Mounting

•

On a backplate, through a front panel or on rails

•

Horizontally or vertically

22


Accessories

Connection of

Auxiliaries



•

Auxiliary switches for installation on the fixed part of the chassis, indicating the "connected" and

"disconnected" positions

•

Toggle collar for circuit breakers with toggle through front panel, intended to maintain the degree of protection whatever the position of the circuit breaker (supplied with a toggle extension)

•

Keylock which, depending on the bolt fitted, can be used to:

— Prevent insertion for connection

— Lock the circuit breaker in connected or disconnected position

•

Telescopic shaft for extended rotary handles

Control voltage is provided through automatic secondary disconnects in the connected position only.

See Section 8—Connections for more details. Electrical accessories can be tested in the disconnected position with an external wiring harness.

The drawout-mounted chassis is Listed under UL file E113555 and Certified under CSA file LR 69561.


23


Section 8—Connections

SECTION 8—CONNECTIONS

FRONT CONNECTION

Connection to

Cables

Cable connectors for Compact

®

NSF150 and NSF250 circuit breakers surround the circuit breaker terminals. They are positioned by an insulating lug pack which is anchored to the circuit breaker case.

Cable connectors for Compact NSJ400 and NSJ600 circuit breakers bolt onto the circuit breaker terminals or the terminals of the plug-in base.

pus h to trip

One-wire Cable

Two-wire Cable

Copper or Aluminum

Cable

L

S

L

NSF150

Steel Lug (15–60 A)

S

#14 AWG–#3/0 AWG Cu (Solid or Stranded)

#12 AWG–#4/0 AWG Al (Stranded Only)

2.5–95 mm

2

CU/AL

NSF150/250

Aluminum Lug (70–250 A)

S

#2/0 AWG–250 kcmil Cu (Stranded Only)

70–120 mm

2

#4/0 AWG–300 kcmil Al (Stranded Only)

95–150 mm

2

0.79 in.

20 mm

L

0.79 in.

20 mm

NSJ400

1 Cable

S

L

#2 AWG–600 kcmil Cu (Stranded Only)

35–300 mm

2

#2 AWG–500 kcmil Al (Stranded Only)

35–240 mm

2

Cu/AL

1.2 in.

31 mm

NSJ600

1–2 Cable

S

L

#2/0 AWG–350 kcmil Cu (Stranded Only)

70–185 mm

2

#2/0 AWG–500 kcmil Al (Stranded Only)

70–240 mm

2

1.2–2.4 in.

31–61 mm

24


Connection to

Bars

pus h to trip


Section 8—Connections

Compact

®

NSF150 to NSJ600 circuit breakers are equipped as standard with captive nuts and screws for direct connection to bars:

•

Compact NSF150/250 circuit breakers—M8 screws

•

Compact NSJ400/600 circuit breakers—M10 screws

D e

∅

L d

Compact

®

Circuit Breaker

Pole Pitch in. / mm in. / mm in. / mm in. / mm in. / mm in. / mm

NSF150/250

1.4 / 35

-1 / 25

-0.4 / 10

< 0.35 / 9

-0.23 / -6

< 0.32 / 8

NSJ400/600

1.8 / 45

-1.3 / 32

-0.64 / 16

< 0.51 / 13

0.11–0.39 / 3–10

< 0.4 / 10

∅

D d e

L

REAR CONNECTION

Fixed Mounting

For connection of bars or cables with compression lugs. Rear connections are easily installed on the circuit breaker terminals. The same connection may be installed flat, edgewise or at a 45° angle. All combinations are possible. The circuit breaker is mounted on a backplate.

pus h to trip

One Long + Two Short

Four Positions

Plug-in Mounting and Drawout

Mounting

For connection of bars or cables with compression lugs. Rear connections are installed flat. The plug-in base or the chassis are mounted through a front panel.

Plug-in Mounting


pus h to trip

Drawout Mounting

25


Section 9—Accessories

SECTION 9—ACCESSORIES

LOCATION

Internal accessories comply with requirements of Underwriters Laboratories Inc. UL 489 and Canadian

Standard Association C22.2 No. 5.1 Standards. All internal accessories are Listed for fixed installation per UL file E103955 and Certified under CSA file LR 69561.

Auxiliary Switch

(OF1)

Alarm Switch

(SD)

Auxiliary Switch

(OF2)

Overcurrent

Trip Switch (SDE)

Auxiliary Switch

(OF1)

Auxiliary Switch

(OF2)

Auxiliary Switch

(OF3)

Alarm Switch

(SD)

Overcurrent

Trip Switch (SDE)

Shunt Trip (MX) or Undervoltage

Trip (MN)

Shunt Trip (MX) or Undervoltage

Trip (MN)

NSF150/250 NSJ400/600

CONNECTIONS

Fixed Mounting

Each electrical accessory is fitted with numbered terminal blocks for wires with the following maximum size:

•

#16 AWG (1.5 mm

2

) for auxiliary switches, undervoltage and shunt trip or undervoltage trip

•

#14 AWG (2.5 mm

2

) for the motor operator

Auxiliary circuits exit the device through a knock-out in the front cover.

Plug-in and

Drawout Mounting

26




AUTOMATIC SECONDARY DISCONNECTING BLOCKS

Accessory circuits exit the circuit breaker via one to three secondary disconnecting blocks (nine wires each). For Compact

®

NSJ400/600 circuit breakers connection wires for the options installed with trip unit STR53UP also exit via the automatic secondary disconnecting blocks. These are made up of:

•

A moving part connected to the circuit breaker via a support (one support per circuit breaker)

•

A fixed part mounted on the plug-in base, equipped with connectors for wires up to

#14 AWG (2.5 mm

2

)

OF1

SD

MN/MX

OF2

SDE

MT

Compact

®

NSF150 and NSF250 Circuit Breakers

OF1

SD

MN/MX

OF2

SDE

MT

OF3

SDV

COM

R/T

Compact

®

NSJ400 and NSJ600 Circuit Breakers

Nine-wire Manual Auxiliary Connector


27



AUXILIARY AND ALARM SWITCHES

Changeover

Switches

Functions

Standards

Installation

Auxiliary switches provide remote information of the circuit breaker status and can thus be used for indications, electrical locking, relays, etc.

•

OF (open/closed): auxiliary switch—indicates position of the circuit breaker contacts

•

SD (trip indication): bell alarm—indicates that the circuit breaker has tripped due to

— Overload

— Short circuit

— Ground fault

— The operation of a shunt trip or undervoltage trip or the "push-to-trip" button which resets when the circuit breaker is reset

•

Operation of a plug-in base or chassis when attempting to withdraw the circuit breaker in ON position; SDE (fault indication): indicates the circuit breaker has tripped due to an overload, short circuit or ground fault; resets when circuit breaker is reset

•

CAM (early-make or early-break function): indicates the position of the rotary handle; used in particular for advanced-opening safety trip devices

•

Connected/disconnected: indicates the position of a drawout circuit breaker

•

Switching of very low loads: all above auxiliary switches are also available in low-level versions capable of switching very low loads (e.g., for controlling PLCs or electronic circuits)

Auxiliary switches comply with UL 489, CSA C22.2 No. 5.1 and IEC 947-5 Standards. “Low-level" switches are not UL Listed.

•

Functions OF, SD and SDE:

— Switches snap into cavities under front accessory cover of the circuit breaker

— For Compact

®

NSF150–NSJ600 circuit breakers, one model serves for all indication functions depending on where it is fitted in the circuit breaker

•

SDE function of a circuit breaker equipped with a thermal-magnetic trip unit requires the SDE actuator

•

CAM: to be fitted in the rotary handle module; depending on how it is installed, it ensures either the

CAO (early-break) or the CAF (early-make) function "Connected/disconnected" function; two parts to be fitted on the chassis and the drawout circuit breaker

28




Electrical Ratings

UL 489 and CSA C22.2 No. 5.1 Ratings

Minimum Rating

Maximum Current and Voltage

Maximum Rating

50/60 Hz

DC

240 V

480 V

600 V

48 V

125 V

250 V

Low-level Switches

1 mA–4 V

5

—

2.5

0.8

0.3

100 mA–10 V

If the maximum voltage and current are exceeded, the lowlevel characteristics of the switch will be compromised. However, the switch will still function as a standard switch to the following specifications:

5

Regular Switches

10 mA–24 V

6 A–480 V

6

6

3

2.5

0.8

0.3

IEC 947 Ratings

Rated Thermal Current (A)

Minimum Rating

Maximum Current and Voltage


(IEC 947-4)

Operational Current (A)

24 V

48 V

110 V

220/240 V

250 V

380/415 V

440 V

660/690 V

—

5

5

—

5

5

5

5

Low-level Switches

5

1 mA–4 V

Regular Switches

6

10 mA–24 V

100 mA–10 V

If the maximum voltage and current are exceeded, the low-level characteristics of the switch will be compromised.

However, the switch will still function as a standard switch to the following specifications: ac dc

6 A–480 V ac dc

AC12 AC15 DC12 DC14 AC12 AC15 DC12

—

1.5

1.5

—

3

3

2.5

2

0.3

—

—

—

5

2.5

0.8

—

1

0.2

0.05

—

0.03

—

—

—

6

6

—

6

6

6

6

6

—

3

3

0.1

5

4

6

6

0.3

—

—

—

2.5

2.5

0.8

—

DC14

0.03

—

—

—

1

0.2

0.05

—


29



SHUNT TRIP AND UNDERVOLTAGE TRIP

A voltage release can be used to trip the circuit breaker via a control signal.

Undervoltage trip

(MN)

Shunt trip (MX)

Operation

Installation and

Connection

•

Trips circuit breaker when the control voltage drops below a tripping threshold

•

Drops out between 35% and 70% of rated voltage

•

Circuit breaker closing is possible only if the voltage exceeds 85% of rated voltage

•

Permanent type

•

If an overvoltage condition exists, operation of circuit breaker closing mechanism will not permit the main contacts to touch, even momentarily

•

Trips the circuit breaker when control voltage rises above 70% of its rated voltage

•

Impulse type

≥ 20 ms or maintained control signals

•

AC shunt trips can be operated at 55% of their rated voltage, making them suitable for ground-fault protection when combined with a Class I ground-fault sensing element

•

The circuit breaker must be reset locally after being tripped by shunt trip or undervoltage trip

(MN or MX)

•

MN or MX tripping has priority over manual (or motor operator) closing; in the presence of a standing trip order such an action does not result in any closing, even temporarily, of the main contacts

•

Endurance: 50% of the rated mechanical endurance of the circuit breaker for Compact

®

NSF150–

NSJ600 circuit breakers

•

Accessories are common to NSF and NSJ circuit breakers and are located within the circuit breaker behind front accessory cover

•

Each terminal may be connected by one #18–#14 AWG (1.0–2.5 mm

2

) stranded copper wire

Electrical Characteristics

AC DC


24, 48, 110–130, 208–277, 380–480, 525, 600 12, 24, 30, 48, 60, 125, 250

Consumption

Clearing Time (ms)

Pickup (MX)

Seal-in (MN)

< 10 VA

< 5 VA

< 50

< 5 W

< 5 W

< 50

30




MOTOR OPERATOR

The motor operator remotely operates the circuit breaker featuring easy and sure operation:

•

All circuit breaker indications and information remain visible and accessible, including trip units settings and circuit breaker connection

•

Suitability for isolation is maintained and padlocking remains possible

•

Double insulation front face

Applications

Automatic

Operation

Manual Operation

Installation and

Connection

•

Local motor-driven operation, centralized operation, automatic distribution control

•

Normal/standby source changeover or switching to a replacement source to optimize energy costs

•

Load shedding and reconnection to optimize energy costs

•

Synchrocoupling—less than five cycle closing time

•

On and off by two impulse type or continuous control signals

•

Depending on the wiring, resetting can be done locally, remotely or automatically

•

Mandatory manual reset following tripping due to an electrical fault

•

Transfer to manual mode using switch with possibility of remote mode indication

•

On and off by two push buttons

•

Recharging of stored-energy system by pumping the lever nine times

•

Padlocking in off position

•

All installation (fixed, plug-in/drawout mounting) and connection capabilities are maintained

•

Connection of the motor operator module behind its front cover to a built-in terminal block, for stranded copper wire #14 AWG (2.5 mm

2

)


31



Accessories for

NSJ400/600

•

Keylock for locking in OFF position

•

Operations counter, indicating the number of ON and OFF cycles; the counter must be installed on the front of the motor operator module.

Characteristics

Response Time (ms)

Max. Cycles Frequency Per Minute

Control Voltage (V)

AC 50/60 Hz

Consumption

Minimum Operating Order

Operating Voltage

DC

AC (VA)

DC (W)

Opening

Closing

Opening

Closing

Opening

Closing

NSF

< 500

< 80

4

48–60

110–130

208–277

380–480

-500

-500

-500

-500

24–30

48–60

110–130

250

700 ms

85–110% Rated Voltage

NSJ

—

—

—

—

—

—

110–130

250

—

—

—

48–60

110–130

208–277

380–415

440–480

24–30

48–60

1 2 3 4 5 6

MERLIN GERIN

compact

NSJ 400 N circuit breaker

6

00V

50/60Hz

UL inter. ratings

RMS Sym Amps

240V

480V

600V

IEC947

65k

35k

25k

Ic

380/415V 45kA

Ics = 100% Icu

Uimp = 8kV

UTE VDE BS CEI UNE NEMA

In = 400A

O OFF charged manu auto

O push OFF

I push ON

1.

Contact position indicator (suitability for isolation)

2.

Outgoing circuit identification labels

3.

Spring status indicator (charged, discharged)

4.

Locking device (keylock) on NSJ400/600

5.

Locking device (off position) using one to three padlocks, diameter

0.2–0.32 in. (5–8 mm), not supplied

6.

Manual spring-charging handle

7.

ON push button

8.

OFF push button

9.

Manual/auto mode selection switch; the position of the switch can be indicated remotely

10.

Operations counter (Compact

®

NSJ400/600 circuit breaker)

10 9 8 7

32




ROTARY OPERATING HANDLES

Operation

•

The direct rotary handle maintains

— Suitability for isolation

— Indication of three positions: O (off), I (on) and tripped

— Access to the "push-to-trip" button

— Visibility of, and access to, trip unit settings

I/ON

(Closed)

I

ON

Closing

Tripped

Reset

O/OFF

(Open

Isolated) tripped reset

O

OFF

•

The circuit breaker may be locked in the off position by using one to three padlocks, padlock shackle diameter 0.19–0.31 in. (5–8 mm); padlocks are not supplied

Directly Mounted

Installation

Models

Variations for

Compact

®

NSF150–

NSJ600 Circuit

Breakers

Replaces the circuit breaker front accessory cover (secured by screws).

•

Standard with black handle

•

VDE type with red handle and yellow bezel for machine tool control

Accessories transform the standard direct rotary handle for the following situations:

•

Motor control centers (MCCs)

— Opening of door prevented when circuit breaker is on

— Closing of circuit breaker inhibited when door is open

•

Machine tool control; complies with CNOMO E03.81.501N; degree of protection IP54

The directly-mounted rotary operating handle is Listed under UL file E103955 and Certified under CSA file LR 69561.


33



Door Mounted

Makes it possible to operate circuit breakers installed inside an enclosure from the front. The handle mechanism can be used in NEMA 3R and 12 enclosure applications. Degree of protection: IP40 as per

IEC 529.

Operation

Models

Installation

Variation for

Compact

®

NSF150–

NSJ600 Circuit

Breakers

•

The unit maintains:


— Indication of the three positions: O (off), I (on) and tripped

— Visibility of and access to trip unit settings when door is open

•

Defeatable interlock prevents opening of door when circuit breaker is on

•

Circuit breaker may be locked in the off position by using one to three padlocks, padlock shackle diameter 0.19–0.31 in. (5–8 mm); padlocks are not supplied; locking prevents opening of the switchboard door

•

Standard with black handle

•

VDE type with red handle and yellow bezel for machine tool control

The extended rotary operating handle is made up of:

•

A unit that replaces the front accessory cover of the circuit breaker (secured by screws)

•

An assembly (handle and front plate) on the door that is always secured in the same position, whether the circuit breaker is installed vertically or horizontally

•

An extension shaft that must be adjusted; the distances between back of circuit breaker and door are

— Compact

®

NSF150/250 circuit breakers: 7.4–24 in. (185–600 mm)

— Compact NSJ400/600 circuit breakers: 8.4–25 in. (210–625 mm)

For withdrawable configurations, the extended rotary handle is also available with a telescopic shaft containing two stable positions. The extended rotary operating handle is Listed under UL file E103955 and Certified under CSA file LR 69561.

34




CABLE OPERATING HANDLE

The extended rotary operating handle is Listed under UL file E103955 and Certified under CSA file LR

69561.

to h pus trip

O

O

FF

Flange-mounted

Handle Cable

Operating

Mechanism

Installation

•

The cable operator maintains:


— Indication of three positions: O (Off), I (On) and tripped

— Access to push-to-test

•

The circuit breaker may be locked in the off position by one to three padlocks, padlock shackle diameter 0.19–0.31 in. (5–8 mm); padlocks are not supplied

•

Door can be locked closed due to interlocking features of handle operator

Handle is mounted on flange of enclosure using specified mounting dimensions while circuit breaker and operating mechanism are mounted to inside of enclosure using two screws.

Cable lengths available in 3-, 5- or 10-foot lengths to accommodate a variety of mounting locations.

Handles are available in painted Nema 1, 3, 3R, 4 (sheet steel) and 12 ratings or chrome (Nema 4, 4x).


35



LOCKING SYSTEMS

Padlocking systems can receive up to three padlocks with diameters ranging from

0.19–0.31 in. (5–8 mm) ; padlocks not supplied.

Locking In the Off

Position

Locking of the Toggle Using a

Fixed Device

Locking of the Toggle Using a

Stationary Device

2 manu/auto O push

OFF

I push

ON

1

Locking of the Motor Operator

Using a Keylock

ON

I

O

OFF

Locking of the Rotary Handle Using a Padlock or a Keylock

ON

I

O

OFF

Locking of the Rotary Handle Using a Keylock

Control Device

Toggle

Direct Rotary

Handle

Function

Lock In Off Position

Lock In Off or On

Position


Means Required Accessories Compact

®

NSF150/250 Compact

®

NSJ400/600

Padlock Removable Device

■ ■

Padlock Stationary Device

Padlock —

■

■

■

■

Keylock Locking Device + Keylock

MCC Rotary

Operating Handle


Extended Rotary

Operating Handle

Motor Operator

Lock In Off Position,

Door Opening

Prevented

Lock In Off Position,

Motor

Mechanism Locked

Out

Padlock —

Padlock —

Keylock Keylock

Padlock —

Keylock

Locking Device (Keylock

Incorporated)

■

■

■

■

■

■

■

36




INTERLOCKING ACCESSORIES

Interlocking prevents simultaneous closing of two circuit breakers.

Control Device Means

Toggle

Sliding Bar Interlocking Mechanical Device

Rotary Handle (Directly or Door Mounted)

Mechanical Interlocking

2 Keylocks and 1 Key

NSF150–NSJ600

■

■

■

Interlocking of

Circuit Breakers with Toggle

Control

Two models:

•

For Compact

®

NSF150–NSF250 circuit breakers (three-pole or four-pole)

•

For Compact

®

NSJ400–NSJ600 circuit breakers (three-pole or four-pole)

Padlocking systems can receive one or two padlocks with diameters ranging from

0.19–0.31 inch (5–8 mm). Both interlocked circuit breakers should be fixed version or plug-in version.

Two sliding interlocking bars can be used to interlock three circuit breakers installed side-by-side, in which case one circuit breaker is in the ON position and the two others in the OFF position.

Interlocking with Toggle Control

Interlocking of

Circuit Breakers with Rotary

Handles

For Compact

®

NSF150–NSJ600 circuit breakers

I

ON

ON

I tripped push to trip reset

O

OFF

O

OFF

I

ON

ON

I tripp ed

O

OFF

O

OFF

Interlocking with Rotary Handles


37



Interlocking with

Keys

For circuit breakers equipped with rotary handles or a motor mechanism. Interlocking with keys may be easily implemented by equipping each of the Compact

®

circuit breakers, either fixed or drawout mounted, with a directly mounted rotary operating handle and a standard keylock, but with only one key for the two keylocks. This solution enables interlocking between two circuit breakers that are geographically distant or that have significantly different characteristics.

Use:

•

A keylock adapter (different for each device)

•

Two identical keylocks with a single key

ON

I pus to trip

O

OFF

ON

I to trip reset

O

OFF

Interlocking with Keys

38




FRONT-PANEL ESCUTCHEONS

For Fixed or Plugin Mounting

Front-panel

Escutcheons for

Toggle

Door escutcheon provides better appearance of the door contact.

Secures to the panel, from the front.

pus h to trip

Front-panel

Escutcheon for

Motor Operator

Module or Rotaryoperating Handle

Secures to the panel by four screws, from the front.

O

OFF discha rged discha rged

2

2

O

O

I

I

1

1

I

ON pus h to trip

O

OFF

Toggle Boot

•

Protection up to NEMA 3M

•

Fits on front of circuit breaker


39



For Drawout

Mounting

Toggle Collars

The toggle collars make it possible to maintain degrees of protection regardless of the circuit breaker position (connected, disconnected).

•

Front panel escutcheons are obligatory (identical to those for rotary handle and ammeter module)

•

Toggle collars secured by two screws on the circuit breaker

•

Front panel escutcheons secured on the switchboard

•

Toggle extension is supplied with the toggle collar

Front panel escutcheons for motor operator, rotary operating handles are the same as for the fixedmounted circuit breaker with the same equipment.

push to trip

Outgoing Circuit

Identification

Compact

®

NS circuit breakers come with labels designed for handwritten indications.

MAIN PU

MP

M

A

I

N

P push to trip

It is also possible to use preprinted Telemecanique labels, catalog No. AB1

•

Compact

®

NSF150–NSF250 circuit breakers: eight characters

•

Compact

®

NSJ400–NSJ600 circuit breakers: sixteen characters

Sealing Accessory

This accessory includes the elements required to fit lead seals to prevent:

•

Front accessory cover removal

•

Rotary handle removal

•

Opening of the motor operator

•

Access to accessories

•

Access to trip unit settings

•

Access to ground-fault protection settings

•

Trip unit removal

•

Terminal cover removal

•

Access to power connections

40


SECTION 10—DIMENSIONS


Section 10—Dimensions

FIXED MOUNTED

Dimensions

2P, 3P 4P

Electrical Clearances

13.8

35

Z

P1

P2

P4

H1 H3 H54

X

H H2

H53

X

A

Y

L

L1

A—Short Terminal Covers for Rear Connection

Mounting on Backplate

2P, 3P

K1 K1

K1

K

4P

K1 K1 K1

K2

K

L2

Y

L

X

0.4

10


2P, 3P

U (E)

K1

K

13.8

35

0.4

10

4P

K2

K

G1

X

G5

G4

G

∅T

∅T4 (D)

Y

D—Only For Rear Connected Circuit Breakers

Front Panel Cutouts

For Fixed or Plug-in Circuit Breakers

Cutout A

Y

A

X

X

X

C

C1

Z

B/C

P5

P6

Y

R1

R


X

G

∅T

Y

E—U

≤ 0.78 in. (20 mm) When Using

Secondary Disconnecting Blocks

(Compact

®

NSF150 and NSF250

Circuit Breakers)

Cutout B

Y

R4(3P)

R2

R5(4P)

X

C3

C2

Cutout C

Y

Y

X

X

C3

C2

Dimensions: in. / mm

41



Front-panel Cutouts

With Toggle Boot With Escutcheon

X

C21

C20

X X

C6

C7

Y

R12

R13

Front Accessories: See Page 39

Z

P6

Y

R6

R7


NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

G5

5.51

140

8.93

227

C

1.14

29

1.63

41.5

L2

5.51

140

7.28

185

H

3.16

80.5

5.01

127.5

C1

2.99

76

4.56

116

P1

3.18

81

3.75

95.5

H1

6.33

161

10.03

255

C2

2.12

54

3.64

92.5

P2

3.38

86

4.33

110

H2

3.70

94

5.61

142.5

C3

4.25

108

7.24

184

P4

4.37(*)

111(*)

6.61

168

P5

3.26

83

4.21

107

H3

7.40

188

11.22

285

C6

1.69

43

2.08

53

H53

3.74

95

6.69

170

C7

4.09

104

5.74

146

P6

3.46

88

4.40

112

H54

7.48

190

13.38

340

C20

1.33

34

1.83

46.5

R

0.57

14.5

1.24

31.5

K

0.68

17.5

0.88

22.5

C21

3.38

86

4.96

126

R1

1.14

29

2.48

63

K1

1.37

35

1.77

45

G

2.46

62,5

3.93

100

R2

2.12

54

2.81

71.5

L

2.06

52.5

2.75

70

G1

4.92

125

7.87

200

R4

4.25

108

5.62

143

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

R7

2.28

R12

1.69

R13

3.38

ØT

0.23

ØT4

0.86

U**

- 1.25

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

58

3.66

93

43

2.48

63

86

4.96

126

6

0.23

6

22

1.25

32

- 32

- 1.25

- 32

* P4 = 4.96 in./126mm for Compact® NSF250N/H/L Circuit Breaker

** U

≤ 0.78 in./20mm When Using Secondary Disconnecting Blocks (Compact® NSF150 and NSF250 Circuit Breakers)

NOTE: Door cutouts require a minimum distance between the center of the circuit breaker and the door hinge point

∆

3.93 in./100 mm + (h x 5).

L1

4.13

105

5.51

140

G4

2.75

70

4.46

113.5

R6

1.14

29

1.83

46.5

h

∆

42




PLUG-IN AND DRAWOUT MOUNTING

Dimensions

Plug-in (On Base)

M

Z (

*

)

2P, 3P 4P

K1 K1

H17

X

X

H16

(*)

L2

Y

L

P7

P8

P9 P4

Drawout (On Chassis)

M

2P, 3P 4P

H19

H18

P7

P9

P8

Z

P2

P4

X

P12

X

Y

L6

L7

L8

(

*

)

X

Y

L6

L9

L10

(*)



43



Mounting

Through a Backplate

(Plug-in Base)

2P, 3P

K1

K

4P

K2

K

Through a Backplate

(Chassis)

2P, 3P

K1

K

4P

G11

G10

X

G13

G12

T

Y

K5

K6

On Rails (Plug-in Base or Chassis)

2P, 3P

U

K21

K20

4P

K22

K20

X

G21

G20

∅T

Y

Y

K7

Y

K5

X

X

G11

G10

T

Y

K11

K12

X

G13

G12

K2

K

K13

Y

K11

X


Plug-in Mounting

See Fixed-mounted Installation Page 41

X

Z

P44

Drawout with Extended Front-panel Escutcheons

Y

R8

R9

X

C11

C17

44




NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

C11

4.05

103

6.10

115

C17

1.67

42.3

1.65

42

G10

3.74

95

5.90

150

G11

7.48

190

11.8

300

G12

3.42

87

5.39

137

G13

6.85

174

10.7

274

G20

1.47

37.5

2.95

75

G21

2.95

75

5.90

150

H16

4.03

102.5

6.20

157.5

H17

8.07

205

12.40

315

H18

4.07

103.5

5.51

140

H19

8.26

210

11.02

280

K

0.68

17.5

0.88

22.5

K1

1.37

35

1.77

45

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

K5

2.14

54.5

2.81

71.5

K6

4.29

109

2.81

143

K11

2.91

74

7.40

91.5

K12

5.82

148

3.60

183

K13

7.20

183

7.20

228

K20

1.37

35

8.97

50

K21

2.75

70

1.96

100

L

2.06

52.5

2.75

70

L1

4.13

105

5.51

140

L2

5.51

140

7.28

185

L6

3.64

92.5

4.33

110

L7

7.28

185

8.66

220

L8

8.50

216

98.46

250

L9

8.66

220

10.43

265

L10

9.88

P2

3.38

P4

4.37(*)

P7

1.06

P8

1.77

P9

2.95

P12

1.25

P44

4.84

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

251

11.61

295

86

4.33

110

111(*)

6.61

168

27

1.06

27

45

1.77

45

75

3.93

100

32

1.25

32

123

5.78

147

* P4 = 4.96 in./126mm for Compact NSF250N/H/L Circuit Breaker

** U

≤ 0.78 in./20mm When Using Automatic Auxiliary Connectors (Compact NSF150 and NSF250 Circuit Breakers)

R8

2.91

74

3.54

90

R9

5.82

148

7.08

180

U**

≤ 1.25

≤ 32

≤ 1.25

≤ 32

ØT

0.23

6

0.11

3


45



Motor Operators

2P, 3P 4P

X

H22

H20

H21

H23

X

L2

Y

L

P33

P32

Z


Y

L12

L11

L1

L

X

X

X

C23

C22

Y

R14

R15

P45

Z

Dimension Table

NSF150/250N/H/L

NSJ400/600N/H/L

Inch mm

Inch mm

C22

1.14

29

1.63

41.5

C23

2.99

76

4.96

126

H20

2.46

62.5

3.93

100

H21

3.81

97

5.98

152

H22

1.79

45.5

3.26

83

H23

2.87

73

4.84

123

L

2.06

52.5

2.75

70

L1

4.13

105

5.51

140

L2

5.51

140

7.28

185

L11

3.58

91

4.84

123

L12

1.79

45.5

2.42

61.5

P32

7.00

178

9.84

250

P33

5.62

143

8.46

215

P45

5.70

145

8.54

217

R14

1.90

48.5

2.53

64.5


∆

3.93 in./100 mm + (h x 5).

h

∆

46


CABLE-OPERATING HANDLES

Compact NSF

5.19

132

4.31

109

9.38

238

10.38

264

8.75

222



7.01

178

4.86

123

0.31

8

1.06

27

Compact NSJ

4.31

184

13.5

343

4.31

109

9.38

238

10.38

264

11.32

287

7.01

178

7.996

203

0.31

8

1.06

27



47



ROTARY-OPERATING HANDLES

Dimensions

2P, 3P

L12

4P

H23

X

H20

60

°

DD

I

60

°

O

X

H24

Y

L15

L11

L1

L

60

DD

I

60

O

L2

Y

L

X

P34

P35 (A)

P36 (B)

P37 (C)

Z

A—Without Keylock

B—With Ronis™ Keylock

C—With Profalux™ Keylock

Ronis and Profalux are trademarks of HF Sécurité


Fixed or Plug-in Mounted


X

X

C23

C22

Z

P43

Y

R14

R15

P44

Z

Mandatory to Fit Front Panel

Escutcheon

Motor Control Center Type Direct Rotary-operating Handle

Front-panel Cutout Dimensions

X

L7

L12

L8

Y

R8

R9

X

C11

C17

G39

X

G38

H24 H10

X

H9

Y

K14

K15

P42

±

2

Max.

0.04–0.12 in.

1–3 mm

Y

48




Dimensions

Fixed or Plug-in Mounted

Cut Shaft at Length:

P38—4.96 in. (126 mm) NSF150/250

P38—5.90 in. (150 mm) NSJ400/600

P38

Z

Front-panel Cutout

45

°

L12

G36

G37

Y

∅T7

H24

X

∅T6

X


Cut Shaft at Length:

P38—4.80 in. (122 mm) NSF150/250

P40—5.90 in. (150 mm) NSJ400/600

X

60

°

I

O

L14

L13

L12

H24 H26

X

H25

60

°

Y

P40

Z


∆

3.93 in./100mm + (h x 5)

h

∆


49



NSF150/250N/H

NSJ400/600N/H/L

Inch mm

Inch mm

NSF150/250N/H

NSJ400/600N/H/L

Inch mm

Inch mm

Inch

H26

2.95

75

2.95

75

C11

4.05

103

6.10

155

C17

1.67

42.5

1.65

42

K14

1.96

50

2.85

72.5

C22

1.14

29

1.63

41.5

K15

3.93

100

5.70

145

P35

6.10/7.04

P36

6.14

P37

6.45

NSF150/250N/H mm 155/179

156 164

NSJ400/600N/H/L

Inch

7.08

7.08

7.40

mm

180 180 188

L

2.06

52.5

2.75

70

C23

2.99

76

4.96

126

G36

1.41

36

1.41

36

G37

2.83

72

2.83

72

L1

4.13

105

5.51

140

L2

5.51

140

7.28

185

G38

1.61

41

2.00

51

G39

3.93

100

5.70

145

L7

2.71

69

3.34

85

L8

4.72

120

6.29

160

H9

2.36

60

3.26

83

H10

4.72

120

6.29

160

L11

3.58

91

4.84

123

L12

0.36

9.25

0.19

5

L13

1.47

37.5

1.47

37.5

H20

1.10

28

1.47

40

H23

2.87

73

4.84

123

H24

0.35

9

0.96

24.5

H25

1.47

37.5

1.47

37.5

L14

2.95

75

2.95

75

L15

2.16

55

2.61

66.5

P34

4.76

121

5.70

145

P38

7.28 min.

23.6 max.

185 min.

600 max.

8.22 min.

23.6 max.

209 min.

600 max.

P40

9.76 min.

23.6 max.

272 min.

600 max.

23.6 max.

248 min.

600 max.

10.7 min.

P42

4.92

125

5.86

149

P43

3.50

89

4.40

112

P44

4.84

123

5.78

147

R8

2.91

74

3.54

90

R9

5.82

148

7.08

2.53

5.07

180

R14

1.90

R15

3.81

ØT6

0.16

ØT7

1.96

48.5

97

64.5

129

4.2

0.16

4.2

50

1.96

50

50




FRONT ACCESSORIES

Extended Escutcheons

For Toggle

M

A D

Toggle Boot

M8

A3

D3

Front-panel Escutcheons

For Toggle

M2

M3

A1

D1 D2

For Extended Escutcheon, Motor Operator Module or Rotary Handle

A2

M6

M7

D1 D2

NSF150/250N/H

NSJ400/600N/H/L

Inch mm

Inch mm

A

3.58

91

4.84

123

A1

2.71

69

4.01

102

A2

6.18

157

7.44

189

A3

3.70

94

1.37

35

D

1.37

35

5.27

134

D1

0.13

3.5

0.13

3.5

D2

0.25

6.5

0.25

6.5

D3

1.57

40

2.36

60

M

2.87

73

4.84

123

M2

4.52

115

6.10

155

M3

4.01

102

5.59

142

M6

4.48

114

6.45

164

M7

3.97

101

5.94

151

M8

3.70

94

5.27

134


51



INTERLOCKING SYSTEMS

Interlocking Systems with Rotary-operating Handles

Dimensions Front-panel Cutout

F

J

H

A

H

Y

X

C

D

B

K

F

G

Z

L

N

M

NSF150/250

NSJ400/600

Inch mm

Inch mm

A

12.79

325

16.38

416

B

3.54

90

4.53

115

Interlocking Systems with Toggles

Dimensions Three-pole

C

3.44

87.5

3.94

100

D

6.89

175

7.87

200

F

6.14

156

8.27

210

G

5.23

133

6.18

157

H

0.36

9.25

0.20

5

J

0.35

9

0.97

24.6

K

11.61

295

15.20

386

L

2.97

75.5

3.94

100

M

5.90

150

6.89

175

N

2.95

75

2.93

74.5

Front-panel Cutout

X

R2

Y

R19

Y

R2

X

C3

C2

Z

P5

Y

L16

L17

L

NSF150/250N/H

NSJ400/600N/H/L

Inch mm

Inch mm

C2

2.12

54

3.64

92.5

C3

4.25

108

7.24

184

L

2.06

52.5

2.75

70

L16

5.51

140

7.28

185

L17

9.64

245

12.79

325

R2

2.12

54

2.81

71.5

R19

5.51

140

7.28

185

P5

3.26

83

4.21

107

52



Section 11—Connection Dimensions

SECTION 11—CONNECTION DIMENSIONS

Fixed Mounted

P13

X

G5

G4

X

G4

2.75

G5

5.51

NSF150/250N/H

Inch mm 70 140

Inch 4.46

8.93

NSJ400/600N/H/L mm 113.5

227

* P13 = 0.84 in./21.5 mm for Compact

®

NSF250N/H Circuit Breaker

K1 P13

1.37 0.76*

35 19.5*

1.77

1.02

45 526

Z

K1

Y

K1

Front Connections

Rear Connections

Bar Connection

NSF 150/250 (M8 Screws)

Z

NSJ 400/600 (M10 Screws)

Z

0.55

14

4.46

113.5

X

2.75

70

X

Cable Connection

NSF 150/250

Z

NSJ 400/600

Z

Z

X

0.55

14

4.46

113.5

2.75

70

X

X

NSF 150/250

0.39

10

∅0.33

∅8.6

∅0.78

∅20

0.51

13

NSJ 400/600

0.59

15

∅0.33

∅13

∅0.91

∅23.2

0.55

14

0.70

18

1.69/

43 (*)

3.46

/88 (**)

Z

0.23

6

X

2.75

70

1.18

30

1.99/

50 (*)

4.52

/115 (**)

Z

0.31

8

X

4.46

113.5

(*) Short RC : 1.96

/50

(**) Long RC : 4.52/ 115

(*) Short RC : 1.69

/43

(**) Long RC : 3.46/ 88

Dimensions of Energized Parts: See Section 8—Connections


1.83

46.5

4.46

113.5


53


Section 11—Connection Dimensions

Plug-in or Drawout Mounting

2P, 3P

K1 K1

4P

K1 K1 K1

X

X

Z

Y

Rear Connections

Rear Connections Fitted at Lower Limit Rear Connections Fitted at Upper Limit

Y

X

G33

E

NSF150/250N/H

NSJ400/600N/H/L

P22

P23

Z

X

G35

E

P22

P23

Z

X

Inch mm

Inch mm

E

0.15

4

0.23

6

G33

2.5

63.5

4.09

104

G35

3.16

80.5

5.07

129

K1

1.37

35

1.77

45

P22

2.93 4.86

74.5

123.5

4.50

114.5

7.14

181.5

P23

2.59

66

3.93

100

4.52

115

6.57

167

54



Section 12—Wiring Diagrams

SECTION 12—WIRING DIAGRAMS

Manually-operated Circuit Breaker

314 312 352 354 Z11 e+

T1

R1

D1 C1 92 94

12 14 22 24 32 24

CE

82 84

D1 C1 92 94 12 14 22 24 32 34 72 74 82 84

I d trip unit (3)

OF1 OF2 OF3

MN

(1)

MX

SD

(2)

SDE

D4 C2 91 11 21 31

SDV

71 81

CAF1 CAF2 CAO1

311

CD

351 Z12 e

-

T2

R2

D4

C2 91 11 21 31

81

Motor-operated Circuit Breaker

314 312 352 354

CE

Z11 e+

T1

R1 D1 C1 92 94 12 14 22 24 32 24 84 A2 A4 B4

D1 C1 92 94 12 14

22 24 32 34

72 74 82 84

GN (4)

B2 A2 A4 B4 trip unit (3)

I d

MN

(1)

MX

SD

D4 C2 91

OF1 OF2 OF3

11 21

(2)

SDE

BK (4)

31

SDV

71 81

A1

MT

L1

311

CD

351

Z12 e

-

T2

R2

D4 C2 91 11 21 31

All schemes are shown without the control voltage present, all devices open and relays in the de-energized position.

Switches CD, CE: on drawout chassis.

Switches CAO, CAF: on rotary handle.

Symbols

CAF = early-make switch

CAO = early-break switch

CE = "connected" position indication switch

CD = "disconnected" position indication switch

MN = undervoltage trip

MT = motor operator

MX = shunt trip

OF = position indication switch

SD = trip indication switch

SDE = overcurrent trip switch

SDV = ground-fault indication switch

A1

Legend

(1) Undervoltage or shunt trip

(2) For plug-in/drawout versions, SDV and OF2 switches can be installed together, but only one of them will be connected through automatic secondary disconnecting blocks

(3) Options are only installed on trip unit STR53UP

(4) Wiring supplied, mandatory to connect

L1

Color code

VT: Purple

YE: Yellow

RD: Red

BK: Black

GN: Green

GY: Grey

WH: White

OR: Orange

BL: Blue


55


Section 12—Wiring Diagrams

Motor Operator—Automatic Resetting After Tripping

Use of the Motor Operator (Standard Wiring Diagram)

CN1 - CN 1

+

CN2 - CN 2

Ð

DP1

H1

ON

OFF

A2 A4 B4

82

GN (1)

84 B2 A2 A4 B4

H2 trip unit

SDE

BK (1)

81 A1

A1

MT

L1

L1

Motor Operator + Undervoltage Trip Motor Operator + Shunt Trip

ON OFF ON OFF

D1 A2 A4 B4 C1 A2

Mandatory manual reset after tripping due to an electrical fault.

Symbols

DP1 = protection circuit breakers

OFF = opening push button

ON = closing push button

H2 = "manual" position indication

H1 = electrical fault indication

MT = motor operator

SDE = electrical fault indication switch

(1) Jumper is supplied and must be connected by user. Overcurrent trip switch is strongly recommended to lock remote or automatic resetting after an overcurrent fault.

A4 B4

56



Section 13—Supplementary Technical Information

SECTION 13—SUPPLEMENTARY TECHNICAL INFORMATION


®

NSF150–NSF250 CIRCUIT BREAKERS

TM15DP

10 000

5 000

2 000

1 000

500

t(s)

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 25 x In

.02

.01

Reflex Tripping: t < 10 ms

.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir


.5 1 2 5 10 20 50 100 500 1000 10 000

Reflex Tripping: See Page 62


TM20DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 20 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

TM40DP

10 000

5 000

2 000

1 000

500

t(s)

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 12.5 x In

.02

.01

.005


.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

57



TM50DP

10 000

5 000

2 000

1 000

500

t(s)

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 10 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

TM60DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 16 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

TM70DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 14.8 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir


TM80DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 13 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

58


TM90DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

.2

.1

.05

Im = 11.5 x In

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir

TM250DP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

2

1

.5

20

10

5

Im = 4.8...9.8 x In

.2

.1

.05

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir




TM100-225DP

10 000

5 000

2 000

1 000

500

t(s)

200

100

50

20

10

5

2

1

.5

Im = 5...10 x In

.2

.1

.05

.02

.01


.005

.5 1 2 5 10 20 50 100 500 1000 10 000

I / Ir


59



EFFECT OF HIGH TEMPERATURES

When the ambient temperature is greater than 40° C, overload protection characteristics are slightly modified. When determining tripping times using time/current curves, the Ir values corresponding to the thermal setting on the circuit breaker must be reduced using the coefficients below:

45° C

0.975

50° C

0.95

55° C

0.925

60° C

0.90

65° C

0.875

70° C

0.85

Example

What is the tripping time for a TM200DP circuit breaker with a 400A fault current and an ambient temperature of 40° C?

•

Ir = 200 A

•

I/Ir = 400/200 = 2

On the time/current curve, t = 100 s.

Consider the same conditions, except an ambient temperature of 65° C. What is the tripping time?

•

Ir = 200 x 0.875 = 175 A

•

I/Ir = 400/175 = 2.28

On the time/current curve,

≈

65 s.

60





®

NSJ400–NSJ600 CIRCUIT BREAKERS

STR23SP

10 000

5 000

t(s)

20

10

5

2

1

.5

.2

.1

.05

2 000

1 000

500

200

100

50

.02

.01

.005

.002

.001

.5 .7 1

Ir = 0.4–1 x In

Im = 2–9 x Ir


I = 11 x In

2 3 4 5 7 10

I / Ir

20 30 50 70100 200300

STR53UP Ground-fault Protection

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

10

5

2

1

.5

I 2 t ON

Ig = 0.2–1 x In

.2

.1

.05

I 2 t OFF

0.4

0.3

0.2

0.1

.02

.01

.005

.002

.001

.05 .07 .1

.2 .3 .4 .5 .7 1

I / In


2 3 5 7 10 20 30

STR53UP

10 000

5 000

t(s)

2 000

1 000

500

200

100

50

20

Isd = 1.5

I

2 t = ON

10

5

2

1

.5

Isd = 1.5

I 2 t = OFF

.2

.1

.05

Ir = 0.4–1 x In tr = 1–8 s (6 Ir)

For Hot Start (0.9 x Ir) Divide

Max. Time by 2, Min. Time by 4

Isd = 1.5–7 x Ir

Tsd = 0–0.3 s

.02

.01

.005

.002

.001

.5 .7 1

Ii = 1.5–9 x in

2 3 4 5 7 10

I / Ir


20 30 50 70100 20030


61



REFLEX TRIPPING

All Compact

®

NS circuit breakers and switches incorporate the exclusive reflex tripping system.

This extremely simple system breaks very high fault currents by mechanically tripping the device via a

"piston" actuated directly by the pressure produced in the breaking units resulting from a short circuit.

For high short-circuit thermal withstand, this system provides a faster break. Reflex tripping curves are exclusively a function of the circuit breaker rating.

20

NSJ600

NSJ400**

10

t

(ms)

8

7

6

5

4

TM70DP...TM250DP

TM15DP...TM60DP

NSF250

NSF150*

3

2 3 4 6 10 20 30 40 60

I (kA RMS)

* 4P OSN Compact

®

NSF125/250N and NSF 150/250N Ratings Are Same As NSF250

** 4P OSN NSJ 400/600N Ratings Are Same As NSJ600

100 200

62


LET-THROUGH CURVES AT 480 V

Maximum Peak

Let-through

Current (Amperes)

200



100

80

70

60

50

40

30

20

N

H

L

NSJ400/600

NSF250

NSF150**

10

8

7

6

5

4

2 3 4 6 10 20 30 40 60 100

Available Short Circuit Current (RMS Symmetrical Amperes x 10

3

)

200 300

**4P OSN Compact

®


Maximum Letthrough I

(Amperes

2

t

2

Seconds)

2

10

7

5

3

2

10

6

5

3

2

10

5

N

N

H

L

NSJ400/600

H

NSF250

NSF150**

5

3

2

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®



63



LET-THROUGH CURVES AT 600 V

Maximum Peak

Let-through


200

100

80

70

60

50

40

30

20

N

H/L

NSJ400/600

N

H

NSF250

NSF150**

10

8

7

6

5

4

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®



(Amperes

2

t

2

Seconds)

2

10

7

5

3

2

10

6

N

H/L

NSJ400/600

N

H

NSF250

NSF150**

5

3

2

10

5

5

3

2

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®


64




CURRENT-LIMITING CURVES AT 380/415 V

Maximum Peak

Let-through


200

100

80

70

60

50

40

30

N

H

L

NSJ400/600

20

N

N

H

NSF250

NSF150**

TM40–150DP

H

NSF150

TM30DP

NSF150

TM15–20DP

10

8

7

6

5

4

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®



(Amperes

2

t

2

Seconds)

2

10

7

5

3

2

10

6

N

H

NSJ400/600

N H

NSF250

NSF150**

TM40–250DP

5

3

2

10

5

N

H

NSF150

TM30DP

NSF150

TM15–20DP

5

3

2

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®



65



CURRENT-LIMITING CURVES AT 690 V

Maximum Peak

Let-through


200

100

80

70

60

50

40

30

L

NSJ400/600

20

10

8

7

6

5

4

2

N

N

H

NSF250

NSF150**

TM40...250DP

TM30DP

TM15...20DP

3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®



(Amperes

2

t

2

Seconds)

2

10

7

L

NSJ400/600

5

3

2

10

6

5

3

2

10

5

N

H

NSF250

NSF150**

TM40...250DP

TM30DP

TM15...20DP

5

3

2

2 3 4 6 10 20 30 40 60 100


3

)

200 300

**4P OSN Compact

®


66




UL 489 TEST PROCEDURE

Standard Tests

For electronic trip circuit breakers and uncompensated thermal-magnetic circuit breakers rated 40° C, the test sequences are as shown in the table below:

Test

200% Calibration at 25° C (77° F)


Calibration of Adjustable Instantaneous Trip

Overload

Tungsten Lamp Load


Temperature and 100% Calibration at 25° C (77° F)

Endurance

200% Calibration at 25° C (77° F) Repeated

135% Calibration at 25° C (77° F) Repeated

Interrupting Ability (Y sequence)

Interrupting Ability (Z sequence)

200% Trip Out at 25° C (77° F)

Dielectric Voltage Withstand

■

①

Applies only to circuit breakers rated 50 A or less, and 125 or 125/250 V or less.

②

Applies only to thermal-magnetic breakers rated 40° C.

X

①

②

■

■

■

■

■

Sequence

Y

■

■

■

■

■

■

■

Z

■

■

■

■

Standard

Specifications

Temperature

Calibration

The temperature rise at the circuit breaker and at its terminals does not exceed specified limits when connected with specified cables or bus bars (see below) and at its rated current.

Examples of specified wires and bus:

•

75° C Copper Wire

Rating

100 A

250 A

400 A

600 A

800 A

1000 A

1200 A

•

Copper Busbar

3

3

4

2

2

1

1

Number

1

Size

#1 AWG (60° C)

#3 AWG

250 kcmil

3/0 AWG

350 kcmil

300 kcmil

400 kcmil

350 kcmil

Rating

1600 A

Number

2

2000 A 2

2

2500 A

4

3000 A 4

(1200 A or Less—1000 A / in

2

)

Size

1/4 x 3

1/4 x 4

1/4 x 5

1/4 x 2-1/2

1/4 x4

200% calibration at 25° C—the circuit breaker must trip within time limits which depend on the rating from three minutes for 30 A rated circuit breakers to 30 minutes for over 2000 A rated circuit breakers.

135% calibration at 25° C—the circuit breaker must trip within two hours for circuit breakers rated more than 50 A.


67



Overload

Calibration of adjustable instantaneous trip—the circuit breaker must trip within the range of 80–120% of the maximum marked tripping current and 75–125% of the minimum marked tripping current.

•

Up to 1600 A—50 operations at 600% of rated current

•

2000 and 2500 A—25 operations at 600% of rated current

•

3000–6000 A—three operations at 600% of rated current followed by 25 operations at 200% of rated current

Endurance

Interrupting Ability

The power factor shall be from to 0.45–0.50 lagging.

The circuit breaker must complete an endurance test:

•

Operations at rated current and rated voltage

•

Followed by no load operation.

100 A

225 A

400 A

600 A

800 A

1200 A

1600 A

2000 A

2500 A

3000 A

The power factor shall be 0.75–0.80 lagging.

Frame Size Number of Cycles of Operations

With Current Without Current

500

500

500

500

6,000

4,000

1,000

1,000

500

400

4,000

4,000

5,000

5,000

3,000

2,000

2,000

2,000

2,000

1,100

Total

10,000

8,000

6,000

6,000

3,500

2,500

2,500

2,500

2,500

1,500

Interrupting ability (Y sequence)—after endurance tests and calibrations are repeated, the circuit breaker completes an opening (O) followed by a close-open operation (O-t-CO), with specified current.

Frame Rating

100 A

①

225 A

400 A

600 A

800 A

1200 A

1600 A

2000 A

3000 A

①

Above 250 V

RMS Sym. Amperes

(3-pole O-and-CO)

3,000

3,000

5,000

6,000

10,000

14,000

20,000

25,000

35,000

Interrupting ability (Z sequence)—a three-pole circuit breaker rated 240, 480 or 600 V has to complete an opening operation (O) and a close-open operation (O-and-CO) on each pole, at rated voltage, followed by an opening operation (O) using all three poles.

Frame rating

100 to 800 A

1000 to 1200 A

1600 A

2000 A

3000 A

RMS Sym. Amperes

Each Pole

O-and-CO

8,660

12,120

14,000

14,000

25,000

Common

O

10,000

14,000

20,000

25,000

35,000

68


Dielectric

Optional Tests

Tests On

Accessories



After testing, the circuit breaker must withstand for one minute a voltage of 1000 V plus twice the rated voltage between:

•

Line and load terminals with circuit breaker in open, tripped and off positions

•

Terminals of opposite polarity with circuit breaker closed

•

Live parts and the overall enclosure with circuit breaker open and closed

•

High available fault current—circuit breakers having passed all the standard tests may have the UL

Listing label applied at higher values than the standard; test sequence is as follows:

— 200% calibration

— Interrupting capacity: an opening operation followed by a close-open operation (O-and-CO) on all poles are performed on the circuit breaker

The power factor over 20000 A shall be 0.15–0.2 lagging:

— Trip out at 250%

— Dielectric at twice the rated test voltage

•

100% rated—circuit breakers having passed all the standard tests may have the UL Listing label applied to use the circuit breaker in an enclosure when carrying 100% of its maximum rating

The circuit breaker is submitted to additional temperature tests performed as standard tests, except that the circuit breaker is installed in an enclosure. The dimensions and possible ventilations shall be recorded and shall be marked on the circuit breaker.

Shunt trip and Undervoltage Trip—these devices are submitted to temperature, overvoltage, operation, endurance and dielectric tests.

Overvoltage Test—the device must be capable of withstanding 110% of its rated voltage continuously without damage (this test does not apply to a shunt trip with an "a" contact connected in series).

Operation:

Shunt Trip—must operate at 75% of its rated voltage (except shunt trip devices for use with groundfault protection shall operate at 55%).

Undervoltage Trip—must trip the circuit breaker when the voltage is less than 35% and may trip the circuit breaker between 35 and 70% of its rated voltage and shall pick-up and seal when the voltage is at 85% or more of its rated voltage.

Endurance—the device must be capable of performing successfully for 10% of the number of "with current" operations of the circuit breaker.

Auxiliary and Alarm Switches—auxiliary and alarm switches must be submitted to temperature, overload, endurance and dielectric tests.

Overload Test—the test consists of fifty operations making and breaking 150% of rated current at rated voltage, with a 75–80% power factor in ac and non-inductive load in dc.

Endurance—the switch must make and break its rated current at rated voltage, with a 75–80% power factor in ac, and non-inductive load in dc for 100% of the number of operations "with current" for auxiliary switches, and 10% of this number for alarm switches.

Motor Operator—the motor operator shall perform the number of "without current" operations indicated for the circuit breaker endurance tests. The first 25 operations shall be conducted at 85% of the motor operator voltage rating. The circuit breaker is to be tripped during these tests. The next 25 operations shall be conducted at 110% of the motor operator voltage rating. The balance shall be completed at rated voltage without tripping the circuit breaker.


69



IEC 947-2 TEST PROCEDURE

Standard Tests

Consisting of seven parts, the IEC 947 Standard applies to all low-voltage equipment designed for industrial application.

Three documents are to be consulted for circuit breakers and switches:

•

IEC 947-1: general regulations

•

IEC 947-2: circuit breakers

•

IEC 947-3: switches

Two Categories of

Devices

The IEC 947-1 standard defines two categories of devices:

•

Category A—devices not specifically designed to carry out chronometric selectivity

•

Category B—devices specifically designed to carry out chronometric selectivity; these circuit breakers possess a compulsory additional characteristic: short-time withstand (Icw)

Breaking Capacity

Ultimate Breaking

Capacity: Icu

Breaking

Performance During

Operation: Ics

Icu is the value to be taken into account when calculating an installation. The rule remains: Icu > Icc

(maximum fault current of the installation).

This characteristic indicates the ability of the device to eliminate short-circuit currents less than Icc and with a greater likelihood of occurring, generally near the application. Ics is expressed in % of Icu (values retained by the standard IEC 25-50-75-100% of Icu). This test sequence designed to check the Ics performance, groups together on the same device, following the breaking test (O-CO-CO, see page

72), certain checks such as:

•

Temperature rise under In

•

Calibration at 1.45 In

•

Leakage current (for devices suitable for disconnection)

The leakage current should not exceed 2 mA under the application voltage (0.5 mA when new). These checks ensure that the device is able to carry out all its functions after elimination of a fault of Ics value and to be put back in operation; hence the notion of breaking power performance during operation Ics.

70


Isolation

Function



Recognition and definition of the disconnection capacity for industrial low-voltage equipment:

Until recently, circuit breaker standards have established no regulations concerning the isolation function. Only the installation standards provided some rather vague information. The IEC 947 standard takes this function into account. In the "general regulations" section, it clearly states:

•

The manufacturing regulation

•

The tests to be performed

The circuit breaker standard should define the manner in which the tests are to be performed (under study). The manufacturing regulations state, for example:

•

Both the isolation and the inner contact distances (open > 8 mm)

•

A device indicating the true position of the contacts (operating handle if representative of the state of all the contacts)

•

When a "locked" position is provided, this should only be possible with "open" contacts

The tests to be performed are as follow:

•

Shock wave voltage strength (Uimp)

V

12.3 kV

U

0.9

0.5

Uimp

0.1

0 t1 t2 1.2

50 t

µs

1.2/50 µs–12.3 kV plus 25% between open contacts in comparison with devices not fitted with the applied isolation function according to the figure below. The test is validated if no triggering occurs between the contacts.

•

Measurement of leakage current—under 110% of the device application voltage, maximum leakage currents proposed per pole:

— 0.5 mA new device

— 2 mA device after Ics

— 6 mA device after Icu or after endurance tests, representative of the "end of service life."


71



Test Sequences

Sequence

1–General Characteristics

2–Breaking Capacity During Operation

3–Ultimate Breaking Capacity (Icu)

4–Admissible Short Duration Current (Icw)

Combined Sequence

Category of Devices

All Circuit Breakers

All Circuit Breakers

A

B if Icu > Icw

B

•

Icw = Ics Replaces Sequences 2 and 4

•

Icw = Ics = Icu Replaces

Sequences 2, 3 and 4

Tests

•

Trip Unit Control

•

Dielectric Properties

•

Mechanical and Electrical Endurance

•

Overload

•


•

Temperature Rise

•

145% Calibration (3 Phases Test)

•

Breaking Capacity During Operation (Ot-CO-t-CO)

•


•

Temperature Rise

•

145% Calibration (3 Phases Test)

•

200% Calibration (Each Pole Separately)

•

Ultimate Breaking Capacity (O-t-CO)

•


•


•


•

Short-time Current Withstand

•

Temperature Rise

•

Breaking Capacity at Admissible Short-time Current (O-t-CO)

•


•


•


•

Short-time Current Withstand Icw

•

Breaking Capacity at Ics (O-CO-CO) at Maximum Relay Temp.

•


•

Temperature Rise

•


72




ROUTINE AND MAINTENANCE GUIDELINES

Recommended

Inspection

Intervals

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices.

See NFPA 70E.

• This equipment must only be installed and serviced 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 Failure to follow these instructions will result in death or serious injury.

Inspection of

Terminals

Cleaning

Mechanical

Checks

CAUTION

HAZARD OF EQUIPMENT DAMAGE

Molded case circuit breakers contain factory-sealed and calibrated elements. The seal must not be broken and the circuit breaker must not be tampered with. Molded case circuit breakers should not be field adjusted or repaired. In the case of a malfunction, the circuit breaker should be replaced or inspected at the Schneider Electric factory, or by an authorized representative.

Failure to follow this instruction can result in equipment damage.

Merlin Gerin circuit breakers are designed to be maintenance-free. However, all equipment with moving parts requires periodic inspection to ensure optimum performance and reliability. It is recommended that the circuit breakers be routinely inspected six months after installation, followed by annual inspection. Intervals can vary depending on particular usages and environments.

•

Connections to circuit breaker terminals should be inspected. If there is discoloration due to overheating, the connections should be disassembled and the surface cleaned before reinstallation.

It is essential that electrical connections be made carefully in order to prevent overheating.

•

Check for terminal tightness.

Remove dust and dirt that have accumulated on the circuit breaker surface and terminals.

Even over long periods of time, circuit breakers are not often required to operate on overload or shortcircuit conditions. Therefore it is essential to operate the circuit breaker periodically. To trip the circuit breaker, push the push-to-trip button.


73



Insulation

Resistance Tests

When a circuit breaker is subjected to severe operating conditions, an insulation resistance test should be performed as indicated in NEMA standard publication No. AB4-1996. An insulation resistance test is used to determine the quality of the insulation between phases and phase-to-ground. The resistance test is made with a dc voltage higher than the rated voltage to determine the actual resistance of the insulation.

The most common testing method employs a "megger" type instrument. A 1000 V instrument will provide a more reliable test because it is capable of detecting tracking on insulated surfaces.

Resistance values below one megohm are unsafe and should be investigated. An insulation test should be made:

•

Between line and load terminals of individual poles with the circuit breaker contacts open

•

Between adjacent poles and from poles to the metallic supporting structure with the circuit breaker contacts closed. The latter test may be done with the circuit breaker in place after the line and load conductors have been removed, or with the circuit breaker bolted to a metallic base which simulates the in-service mounting.

Electrical Tests

These tests require equipment for conducting pole resistance, overcurrent and instantaneous tripping, in accordance with NEMA Standard publication No. AB4. They are not within the scope of normal field operation.

74


Square D Company

3700 Sixth St. SW

Cedar Rapids, IA 52404

1-888-SquareD

(1-888-778-2733) www.SquareD.com

Schneider Canada Inc.

19 Waterman Avenue,

M4B 1 Y2

Toronto, Ontario

1-800-565-6699 www.schneider-electric.ca

Catalog No. 0615CT9901R4/03 10/2003

Replaces 0615CT9901 dated 03/1999.

©

1997–2003 Schneider Electric All Rights Reserved

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