NB-NF-CW Moulded Case Circuit Breaker

Short Description:

NB- NF-CW moulded case circuit breaker is available in three ranges, standard , hi-break. The performance of The NB- NF- CW mccb range is the result of extensive design & developmentutilizing ADD accredited test station. The current limiting action of NB- NF-CW MCCB provides low values of let-through energy. Full information for this time current characteristic curves are both available on request to provide more information.

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SPECIFICATION

Type	Number of poles	Rated current in(A)	Rated voltage Ue(V)	Short-circuit Interrupting capacity lcu/lcs(KA)
				AC
				230V	380V	400V	440V	500V
NB50-CP	3	10,15,20,30,40,50	AC400(380)AC690(660) DC250	5/2	5/2	5/2	2.5/1	2.5/1
NB60-CP	3	10,15,20,30,40,50,60		5/2	5/2	5/2	2.5/1	2.5/1
NB100-CP	3	50,60,75,100		25/13	10/5	10/5	10/5	7.5/4
NB250-CP	3	125,150,175,200,225,250		30/15	18/9	18/9	15/8	10/5
NB400-CP	3	250,300,350,400		35/25	25/18	25/18	25/18	15/10
NB630-CP	3	500,600,630		50/35	35/25	35/25	35/25	18/10