JVM2X NSX series moulded case circuit breaker is one of breaker which adopts international advanced design, manufacture technology to develop, the rated insulating voltage is 750V, suitable for AC50Hz(60Hz), rated working voltage 690V or below, rated working current is 12.5 to 1250A of circuit and used in distributing electric energy. Infrequent making and breaking in the normal conditions and protecting when circuit is overload, short circuit and under voltage. Circuit breaker with rated frame current 400A or blew, can be used in mouse-cage motor’s non-frequent start, breaking during working, protecting motor from overload, short circuit, under-voltage.
Rated insuiating voltage : 750v
Rated operating voltage : 690 and below
Ultimate short breaking capacity : 18KA~150KA
Servies short circuit breaking capacity : 18KA~150KA
*Characteristics:compact size,high breaking ability,short arcing-over distance,some of the "0"arcing-over distance,shakeproof.
*Be able to bear the influence of moisture in the air or salt fog and oil fog or mould or nuclear industry environment.
*Be working reliably under the condition of normal vibration on ship.
*Be working reliably when the earthquake(4g) occuring.