NS 630A Moulded Case Circuit Breaker

Category: .

Application of  NS MCCB                                                                                 

NS,  NSX series Moulded Case Circuit Breaker(MCCB) is suitable for using in the circuit of AC 50/60Hz, please make remarks when ordering, rated insulating voltage 750V, rated working voltage below 690V, and rated current is 16A to 1250A for distributing electric energy, and infrequently OFF/ON under normal condition. The intelligent MCCB, which the rated frame rank current is 800A and below, also can be used for infrequently switching and starting of squirrel cage motor and for protecting motor from over-load, short circuit and under-voltage.

Type Rated currentIn(A) Note
NS-100 12.5,16,20,25,32,40,50,63,80,100 Tadjustable (0.8~1In)

M adjustable (5~10In)

NS-160 16,20,25,32,40,50,63,80,100,125,160
NS-250 160,180,200,225,250
NS-400 315,350,400
NS-630 400,500,630
NS-1250 800,1000,1250 Tadjustable (0.8~1In)

M fixed

NS-1600 1000,1250,1600

Accessories

Accessories Rated operating voltage Consumption For type
Pick-up Seal-in
Shunt release(MX) 24V
100V
220/230V
380/400V
<10VA <5VA NS-100~630
Under-voltagerelease(UN) 220/230V
380/400V
<10VA <5VA
Accessories Rated operating voltage Consumption For type
AC12 AC15
Auxiliary contact(OF) 380/400V 6 3 NS-100~630
Alarm contact(AL) 380/400V 6 3

Rotary handle
Direct rotary handle
Degree of protection:IP40
Function:
1) suitability for isolation
2) indication of three positions 0(off) I(on) and tripped
3) press “push to trip” button, can trip-free
4) visibility of and access to trip unit settings
5) the circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied)
Extended rotary handle
Degree of protection:IP55
Function:
1) Suitability for isolation
2) Indication of three positions 0(off) I(on) and tripped
3) Visibility of and access to trip unit settings when the door is open
4) Door opening prevented when circuit breaker is on
5) The circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied).Locking prevents opening of the switchboard door

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