Specifications

26
COMPACT
®
NS circuit breaker
COMPACT
®
NS circuit breaker: functions and characteristics
Accessories
Motor operator
COMPACT
®
NSJ400N circuit breaker with
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
■ 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.
Automatic operation
■ 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.
Manual operation
■ Transfer to manual mode using switch (9) 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.
Installation and connection
■ 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
.
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.
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 to 0.32 inches/5 to 8 mm, not supplied.
6 Manual spring charging handle.
7 I (ON) push button.
8 O (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).
86012
E28037
manu
push OFF
O
2
2
1
1
push ON
I
O OFF
charged
auto
1 3
5 6
89
2
10
4
7
MERLIN GERIN
compact
NSJ 400 N
In = 400A
circuit breaker
600V
IEC947
.2
240V
480V
600V
65k
35k
25k
Ic
u
UTE VDE BS CEI UNE NEMA
50/60Hz
UL inter. ratings
RMS Sym Amps
220/240V
380/415V
85kA
45kA
Ics = 100% Icu
Uimp = 8kV
Characteristics
NSF NSJ
Response time (ms) Opening < 500
Closing < 80
Max. cycles frequency per minute 4
Control voltage (V) AC 50/60 Hz 48–60 48–60
110–130 110–130
208–277 208–277
380–480 380–415
440–480
DC 24–30 24–30
48–60 48–60
110–130 110–130
250 250
Consumption AC (VA) Opening ≤ 500
Closing ≤ 500
DC (W) Opening ≤ 500
Closing ≤ 500
Minimum operating order 700 ms
Operating voltage 85–110 % rated voltage