Molded case circuit breaker
The new COMPACT NS line achieves a significant
technical advance in the evolution of molded case
circuit breakers. These circuit breakers use an entirely
new technology in current interruption. Short-circuit
protection is enhanced by a unique double rotating
break (dual break system) which brings an exceptional
current limitation and outstanding endurance on
repetitive short-circuit interruptions.
COMPACT NS circuit breakers offer a continuous
energy supply and convenience of operation:
■ Compliance with most standards and agreements
worldwide.
■ Suitability for isolation with positive break indication.
■ On request, numerous functions for indication,
measurement and control available.
■ Moisture and fungus protection.
■ Reinforced insulation.
■ Snap-in field-installable accessories.
■ Reverse feeding.
■ Maintenance-free operation.
E38774
COMPACT® NS
NSJ400 and NSJ600
Circuit Breakers
Wire range :
14AWG - 350MCM Cu
10AWG - 350MCM Al
60/75°C - 15 to 125A only
MERLIN GERIN
compact
NSJ 400 N
Torque value : lb.in (N.m)
: 150 (17)
14AWG - 1/0
: 200 (23)
2/0 - 4/0
250 - 350MCM : 275 (32)
circuit breaker
600Vac
interrupting ratings
UL/CSA
65kA
35kA
25kA
240Vac
480Vac
600Vac
IEC947.2
Icu
220/240Va
380/415Va
85kA
45kA
Ics = 100% Icu
Uimp = 8kV
Cat A
ccessory terminals
ehind this cover.
aution: Open circuit-breaker
nd disconnect control power
efore removing this cover.
UTE VDE BS CEI UNE NEMA
In = 400A
push
to
trip
STR 23 SE
Ir
Io
.8
.9
.1
.7
Im
.9
.93
.95
.8
1
.88
.98
.85
.63
.5
x In
400
____ 90
------- 105 %Ir
alarm
x Io
5
6
2
10
7
4
3
8
x Ir
Ir
Im
test
Compliance with standards
USA
Canada
Mexico
International
Europe
France
Germany
Great Britain
Italy
UL 489
CSA C22.2 No.5.1
NOM J 266
IEC 947-1 to 3
EN 60947
NF EN 60947-2
VDE 0660
BS EN 60947-2
CEI EN 60947-2
Mounting
■
■
■
Fixed.
Plug-in.
Drawout.
Connections
Busbar connection or compression lugs.
Pressure-type terminals for bare cables.
Rear connections.
■
■
■
Interrupting ratings (RMS sym. kAmps)
NSJ400 - NSJ600
UL 489 Listed and CSA C22.2 No.5.1 Certified
N
240 V
480 V
600 V
65
35
18
H
L
100
65
25
150
100
25
100
70
65
20
100%
150
150
130
35
100%
IEC 947-2 and other Certifications
Icu
Ics
220/240 V
380/415 V
440 V
690 V
(% Icu)
85
45
42
10
100%
Electronic trip unit
Type
Current sensors
Long time
In
Ir
min/max
Im
Currents setting
Delay at 1.5 Ir (sec)
Pickup
Delay
Short time
Instantaneous
Ground fault
I
Ih
Pickup
Delay
STR23SP
150, 250, 400, 600 A
0.4–1 x In
Fixed: 120–180
2–9 x Ir
Fixed
≥ 9 x In
STR53UP
150, 250, 400, 600 A
0.4–1 x In
Adjustable: 17–25, 34–50, 69–100, 138–200, 277–400
1.5–7 x Ir
0–0.1–0.2–0.3
1.5–9 x In
0.2–1 x In
0.1–0.2–0.3–0.4
Magnetic trip unit for motor circuit protection
Rated current (A)
In
Tripping threshold
40°C
NSJ400HC
NSJ600HC
Magnetic
Im
400
600
■
■
Adjustable: 5–10 x In
Installation and connection (inch/mm)
Busbar or cable connection
4.33
110
5.51
140
Cable range
NSJ400/600
1 cable
E34157
E34156
E29238
Dimensions
1 to 2 cables
#2 AWG–600 kcmil Cu
#2/0 AWG–350 kcmil Cu
#2 AWG–500 kcmil Al
#2/0 AWG–500 kcmil Al
35–300 mm2 Cu
70–240mm2 Al
Weight (Ibs/kg)
13.38
340
NSJ400
NSJ600
push
to
trip
push
to
trip
push
to
trip
3P
13.24/6
3P
13.24/6
1.77
45
Bar connection
1.77
45
Cable connection
Installation
push
to
trip
push
to
trip
E28385
E28383
E29030
Fixed front connection
E28384
push
to
trip
push
to
trip
Fixed rear connection
Plug-in mounting
Drawout mounting
Auxiliary devices for indication and control
■
■
■
■
Direct or extended rotary handle.
Cable operating handle.
Padlocking and keylocking devices.
Motor operator featuring short closing time.
Maximum of three SPDT auxiliary switches
+ one alarm switch for tripped position
+ one alarm switch overcurrent trip switch.
■ Shunt trip and undervoltage releases.
■
Square D Company
PO Box 3069, 3700 Sixth St. SW
Cedar Rapids, IA 52406-3069 USA
COMPACT is a registered trademark of Schneider Electric.
Technical Services: 1-800-634-2003
Order No. 0615HO9702
©1997 Square D
All Rights Reserved