Schneider Electric Class 615 User Manual

Compact® NSF and NSJ

150 to 600 A Circuit Breakers

Class 615

CONTENTS Page

Section 1—The Compact

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

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

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

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Table of Contents

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 1—The Compact® Circuit Breaker Line

SECTION 1—THE COMPACT® CIRCUIT BREAKER LINE

CIRCUIT BREAKERS—PAGE 8

06153032

h s u p o t p i r t

Rated Current (A)

COMPACT

Interrupting Rating at 480 V

15–100 15–250 150–600 400–1200 1250–2500

NSE100

18 35 35 50 —

—65656585

——100150—

SWITCHES—PAGE 17

Rated Current (A)

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h s u p o t p i tr

COMPACT

70 150, 250 400, 600 800, 1200 1600–2500

NSE100A

MOTOR CIRCUIT PROTECTORS—PAGE 19

3–75 100–250 400–600 800–1200

NSE100A

06153033

Rated Current (A)

COMPACT

NSF150

NSF250

NSF150A

NSF250A

NSF150A

NSF250A

NSJ400

NSJ600

NSJ400A

NSJ600A

CK400–CK1200 CM1250–CM2500

CK800NA

NSJ400A

NSJ600A

CK800NA

CM1600HA

CM2000HA

CM2500HA

h s u p o t ip tr

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

SECTION 2—GENERAL CHARACTERISTICS

COMPLIANCE WITH STANDARDS

MERLIN

compact

06153060

NSF 250 N

600Y/347V 50/60Hz

UL/CSA interrupting ratings RMS sym. Amps

240V ac 480V ac 600Y/347V ac

current limiting (see curves in catalog)

IEC947.2

220/240V 380/415V~

Ics=100% Icu Ui 750V

cat A

UTE VDE BS CEI UNE NEMA

65k 35k 18k

85kA 36kA

Uimp 8kV

Icu

Section 2—General Characteristics

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 2—General Characteristics

Tropicalization Compact

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:

NS circuit breakers comply with NF C 63-100 standard level 2 conditions (95% relative

• 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

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

Suitability for Isolation (Positive Contact Indication)

06153037

Installation in Class II Switchboards

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

Circuit Breaker Marking

06153038

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.

Switch Marking

06153039

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 2—General Characteristics

Suitability for Isolation (Positive Contact Indication)

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

Isc

06153040

The exceptional limiting capacity of the Compact

Prospective Isc Peak

Limited Isc Peak

Limited Isc

tsc

Actual Current

Prospective Current

Prospective Isc

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

Longer Service

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

Life of Electrical Installations

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

Mechanical Effects Reduced electrodynamic forces, therefore less risk of electrical contacts or busbars being distorted or

broken.

Electromagnetic Effects

Less disturbance for measuring devices located near electrical circuits.

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 3—Circuit Breakers

SECTION 3—CIRCUIT BREAKERS

RATINGS AND INTERRUPTING RATINGS

UL 489 Listed Ratings

Compact® Circuit Breakers NSF150 NSF250

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06153062

Number of Poles

Rated Voltage (V)

h s u p o t p i r t

Rated Current (A) In

Interrupting Ratings (kA rms)

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

AC 50/60 Hz 600Y/347 600Y/347

40° C 150 250

240 V 65 100 65 100

480 V 35 65 35 65

600 Y/ 347 V 18 25 18 25

600 V — — — —

IEC 947-2 and EN 60947-2 Ratings

Compact® Circuit Breakers NSF150 NSF250

Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Rated Operational Voltage (V) Ue

Rated Current (A) In

Ultimate Breaking Capacity (kA rms) Icu

Service Breaking Capacity Ics

Utilization Category

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

Uimp

AC 50/60 Hz 690 690

DC 500 500

40° C 150 250

AC 50/50 Hz 220/ 240 V 85 100 85 100

380/ 415 V 36 70 36 70

440 V 35 65 35 65

500 V 30 50 30 50

525 V 22 35 22 35

600/ 690 V 8 10 8 10

DC 250 V (1 pole) 50 85 50 85

500 V (2 pole in series)

(% Icu) 100% 100% 100% 100%

3, 4, 4 OSN* 3, 4

N H N H

3, 4, 4 OSN* 3, 4

750 750

N H N H

50 85 50 85

A A A A

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 3—Circuit Breakers

UL 489 Listed Ratings

Compact® Circuit Breakers NSJ400 NSJ600

06153061

h s u p o t p i r t

Number of Poles

Rated Voltage (V)

Rated Current (A) In

Interrupting Ratings (kA rms)

AC 50/60 Hz 600 600

40° C 400 (100% Rated Circuit Breaker) 600

240 V 65 100 150 65 100 150

480 V 35 65 100 35 65 100

600 Y/ 347 V — — — — — —

600 V 182525182525

*Oversized Neutral

IEC 947-2 and EN 60947-2 Ratings

Compact® Circuit Breakers NSJ400 NSJ600

Number of Poles

06153063

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Uimp

Rated Operational Voltage (V) Ue

Rated Current (A) In

Ultimate Breaking Capacity (kA rms)

Icu

Service Breaking Capacity Ics

Utilization Category

*Oversized Neutral

AC 50/60 Hz 690 690

DC 500 500

40° C 400 600

AC 50/50 Hz 220/240 V 85 100 150 85 100 150

380/415 V 45 70 150 45 70 150

440 V 42 65 130 42 65 130

500 V 30 50 70 30 50 70

525 V 22 35 50 22 35 50

600/690 V 10 20 35 10 20 35

DC 250 V (1 pole) — 85 — — 85 —

500 V (2 pole in series)

(% Icu) 100% 100% 100% 100% — 100%

3, 4, 4 OSN* 3, 4

N H L N H L

3, 4, 4 OSN* 3, 4

750 750

N H L N H L

—85—— 85—

A A A A — A

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

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

06153064

250 A

Trip Units for Compact® NSF150–NSF250 Circuit Breakers

Rating (A) In

3P 50° C 14.2 19 28.5 38 47.5 57 66.5 76 85 95 118 142 166 190 213 237

4P3T 60° C 13.5182736455463728190112 135158180203225

4P4T 70° C 12.8 17 25.6 34.2 43 51 60 68 77 85 107 128 150 171 192 214

Circuit Breaker

Rating (A) In

4P OSN 50° C 95 142 118 237 142 237

Overload Protection

Thermal

Short-circuit Protection

Magnetic

Neutral Protection

*Oversized Neutral

Compact® NSF150 N/H ■■■■■■■■■■ ■ ■

Compact® NSF250 N/H ■ ■■■

Compact

NSF150 400 500 1000 1250 1500

Compact® NSF250 5–10 x In

TM15DP–TM250DP Trip Units

40° C 152030405060708090100125150 175200225250

TM100OSN–TM150OSN Trip Units

Phase Neutral Phase Neutral Phase Neutral

40° C 100 150 125 250 150 250

60° C 90 135 112 225 135 225

70° C 85 128 107 214 128 214

3P Non-adjustable

4P3T

4P4T

4P OSN*

Non-adjustable Adjustable

4P3T No Neutral Protection

4P4T 1000 1250 1500 5–10 x In

4P OSN*

x 250 A

Ir Im

TM 250 D

250A / 40°C

Ir Im

Non-adjustable, No Neutral Protection

Non-adjustable

1000 1250 1500

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

TRIP UNITS FOR COMPACT® NSJ400 AND NSJ600 CIRCUIT BREAKERS

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

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

• NSJ400—150, 250 and 400 A

• NSJ600—600 A

Trip Units STR23SP, STR53UP and STR23SP-OSN

•

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 Circuit Breakers

Overload Protection (Long Time)

Tripping Threshold (A)

Tripping Time (s) (Min–Max)

Short-circuit Protection (Short Time)

Tripping

Time Delay (ms)

Short-circuit Protection (Instantaneous)

Tripping Threshold (A)

Adjustable Neutral Protection (Three Position Switch)

Other Functions

Indication of Fault Type ■ (Standard)

Equipment Ground-fault Protection (T) ■

Built-in Ammeter (I) ■

Zone-selective Interlocking (ZSI) ■

Communication (COM) ■

Im / Isd

Accuracy ± 15%

Max. Overcurrent Time Before Tripping Fixed ≤ 40

Total Breaking Time ≤ 60 ≤ 60 ≤ 140 ≤ 230 ≤ 350 ≤ 60

Switch Settings Protection Level

Position 1 4P 3D No Protection No Protection No Protection No Protection

Position 2 4P 3D + N/2 0.5 x Ir 0.5 x Ir 0.8 x Ir 0.75 x Ir

Position 3 4P 4D 1.0 x Ir 1.0 x Ir 1.6 x Ir 1.5 x Ir

20–70° C Adjustable (48 Settings) 0.4–1 x In

At 1.5 x Ir 120–180 17–25 34–50 69–100 138–200 277–400 120–180

At 6 x Ir 5–7.5 0.8–1 1.6–2 3.2–4 6.4–8 12.8–16 5–7.5

At 7.2 x Ir 3.2–5.0 0.5–0.7 1.1–1.4 2.2–2.8 4.4–5.5 8.8–11 3.2–5.0

STR23SP STR53UP

Fixed Adjustable Fixed

Adjustable (7 Settings) 2–9 x Ir

Fixed ≥ 9 x In Adjustable (7 Settings) 1.5–9 x In Fixed ≥ 9 x In

Adjustable (7 Settings) 1.5–7 x Ir Adjustable (7 Settings) 2–9 x Ir

Adjustable (4 Settings + Constant I2t Function)

≤ 15 ≤ 60 ≤ 140 ≤ 230

STR23SP OSN (Oversized Neutral)

Fixed ≤ 40

NSJ250/400N NSJ400/600N

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

Electronic Trip Unit STR23SP and STR23SP-OSN (Oversized Neutral)

06153065

Ir Im

test

Io = sensor

.63

short time

%Ir

105

x Ir

ImIr

STR 23 SP

long time

x In

.85

.88

.93

.95

.98

x Io

alarm

Protection • 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: NSJ400/600N:

— 4P 3D: no protection — 4P 3D: no protection

— 4P 3D + N/2: neutral protection at 0.8 x Ir — 4P 3D + N/2: neutral protection at 0.75 x Ir

— 4P 4D: neutral protection at 1.6 x Ir — 4P 4D: neutral protection at 1.5 x Ir

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

Indications Load indication (LED) in front (6):

• Lights solid at 90% of Ir threshold

• Flashes at >105% or greater of Ir threshold

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

unit or other accessories.

Setting Example 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.

06153066

.63

x In

400 x 0.5 x 0.8 = 160 A

.88

.85

.93

.95

.98

x Io

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

Electronic Trip Unit STR53UP

test

x In

.90 .93

.88

.85

x Io

0,5

(s) @ 6 Ir

06153067

Protection • Long-time (LT) overload protection, adjustable threshold, based on actual rms current, as defined

STR 53 UP

.95

.98

tsd

Isd

(s)

4 5

1.5

x Ir

.3 .3

I2t

off

%Ir >Ir >Isd >Ig

4 6

1.5

x In

(s)

.4 .4

x In

I2t

off

test

μ P

> Ir

> Im

> Ih

In I1 I2 I3

tsd

IsdIr li

Ir Isd I

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

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: no protection — 4P 3D + N/2: neutral protection at 0.5 Ir — 4P 4D: neutral protection at Ir

Overload Indications (%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 ground-

fault 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

• 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

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

Options for Electronic Trip Unit STR53UP

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

Type

Tripping threshold

Tripping time (ms)

Ig Adjustable (8 Settings) 0.2–1 x In

Accuracy ± 15%

Max. overcurrent time before tripping (Tg) Adjustable (4 Settings + Constant I2t Function) 60, 140, 230, 350

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

Residual Current

Ammeter (I) 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.

06153068

In I1 I2 I3

Zone-selective Interlocking (ZSI)

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

Opto-electronic Outputs

Communication (COM)

Possible Combinations

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 4—Trip Units

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

Portable Test Kit and Full-function 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.

06153069

Mini Test Kit

06133786

Hand-held 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

06153070

Portable Test Kit

06133014

Full-function Test Kit

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

SECTION 5—SWITCHES

RATINGS AND INTERRUPTING RATINGS

UL 1087 Listed Ratings

Section 5—Switches

06153061

h s u p o t p i tr

Number of Poles

Rated Voltage (V)

Rated Current (A)

AC 50/60 Hz 600Y/ 347 600Y/ 347

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

3, 4, 4P OSN* 3, 4

150 250

IEC 947-3 Ratings

Compact® Switches NSF150A NSF250A

Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Uimp

Rated Operational Voltage (V) Ue

Rated Operational Current (V) Ie

Making Capacity (kA peak)

Short-time Withstand Current (kA rms)

*Oversized Neutral Protection

Icw

AC 50/60 Hz 690 690

DC 500 500

AC23A 690 V 160 250

DC23A 250 V 160 250

DC23A 500 V (2 poles in series) 160 250

Icw (kA rms) 2.5 3.5

Duration (s) 3 3

3, 4, 4P OSN* 3, 4

750 750

3.6 4.9

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 5—Switches

UL 489 Listed Ratings

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h s u p o t p i r t

Number of Poles

Rated Voltage (V)

AC 50/60 Hz 600 600

Rated Current (A)

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

3, 4, 4P OSN* 3, 4

400 600

IEC 947-3 Ratings

Compact® Switches NSF150A NSF250A

Compact® Switches NSJ400A NSJ600A

Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Uimp

Rated Operational Voltage (V) Ue

Rated Operational Current (V) Ie

Making Capacity (kA peak)

Short-time Withstand Current (kA rms)

*Oversized Neutral Protection

Icw

AC 50/60 Hz 690 690

DC 500 500

AC23A 690 V 400 630

DC23A 250 V 400 630

DC23A 500 V (2 poles in series) 400 630

Icw (kA rms) 5 8

Duration (s) 3 3

3, 4, 4P OSN* 3, 4

750 750

7.1 8.5

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.

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

SECTION 6—MOTOR CIRCUIT PROTECTORS

RATINGS AND INTERRUPTING RATINGS

UL 489 Recognized Component

Compact® Circuit Breakers NSF150HC NSF250HC

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Number of Poles

Rated Voltage (V)

Rated Current (A) In

AC 50/60 Hz 600Y/347 600Y/347

40° C 150 200 250

Magnetic Trip Setting Im

IEC 947-2 and EN 60947-2 Ratings

Compact® Circuit Breakers NSF150HC NSF250HC

Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Rated Operational Voltage (V) Ue

Rated Current (A) In

Ultimate Breaking Capacity Icu

(kA rms) 380/415 V 70 70

Service Breaking Capacity Ics

Utilization Category

Uimp

AC 50/60 Hz 690 690

DC 500 500

40° C 150 200 250

AC 50/60 Hz 220/240 V 100 100

440 V 65 65

500 V 50 50

525 V 35 35

660/690 V 10 10

DC 250 V (1 pole) 85 85

500 V (2 poles in series) 85 85

(% Icu) 100% 100%

Section 6—Motor Circuit Protectors

900-1800

750 750

1000– 2000

HC HC

1250– 2500

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 6—Motor Circuit Protectors

UL 489 Recognized Component

Compact® Circuit Breakers NSJ400HC NSJ600HC

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h s u p o t p i tr

Number of Poles

Rated Voltage (V)

Rated Current (A) In

AC 50/60 Hz 600 600

40° C

Magnetic Trip Setting Im

IEC 947-2 and EN 60947-2 Ratings

Compact® Circuit Breakers NSF150HC NSF250HC

Number of Poles

Rated Insulation Voltage (V) Ui

Rated Impulse Withstand Voltage (kV)

Rated Operational Voltage (V) Ue

Rated Current (A) In

Ultimate Breaking Capacity Icu

(kA rms) 380/415 V 70 70

Service Breaking Capacity Ics

Utilization Category

Uimp

AC 50/60 Hz 690 690

DC 500 500

40° C 400 600

AC 50/60 Hz 220/240 V 100 100

440 V 65 65

500 V 30 30

525 V 35 35

660/690 V 20 20

DC 250 V (1 pole) 85 85

500 V (2 poles in series) 85 85

(% Icu) 100% 100%

400 (100% Rated Circuit Breaker)

600

2000–4000 3000–6000

750 750

HC HC

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

SECTION 7—MOUNTING CONFIGURATIONS

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

FIXED MOUNTING

Section 7—Mounting Configurations

CONNECTIONS

Mounting on Rails

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s pu to trip

Mounting on Backplate

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o t p i r

Flush Mounting

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to ip r t

See Section 8—Connections for details. Compact® NSF and NSJ circuit breakers suitable for reverse feeding.

Front Connection

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h s u

p i tr

Rear Connection

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s u p

o t

i r t

PLUG-IN MOUNTING

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Mounting through Front Panel

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Mounting on Rails

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Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 7—Mounting Configurations

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

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.

Parts of a Plug-in Configuration

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.

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Connected

RemovedDisconnected

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

Compact® NSF and NSJ 150 to 600 A Circuit Breakers

Section 7—Mounting Configurations

Accessories • 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

Connection of Auxiliaries

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.

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