ND16 Series Universal Circuit Breaker

The product description

NDW16 series universal type circuit breaker (hereinafter referred to as circuit breaker) applied to ac 50 hz, rated current 100 a, 4000 a, the rated working voltage of 400 v power distribution network, used to assign power, for circuit and power supply equipment overload, owe voltage, short circuit protection and transformer neutral point grounding directly TN in the distribution system of single-phase earth fault protection with gold attribute.It can also be used for overload, undervoltage and short circuit protection of motors in AC 50Hz and 380V networks. Under normal conditions, it can be used for infrequent circuit conversion and infrequent starting of motors, respectively.The circuit breaker has manual, lever and motor operation modes, over-current protection has overload long delay and short circuit instantaneous action trip, and single-phase ground protection has instantaneous or delay action trip.The transient over-current trip of the circuit breaker is electromagnetic type, and the overload long time delay trip is composed of current transformer and bimetal thermal relay.Single-phase earth protection trip is composed of current transformer (3TA or 4TA) grounding module and shunt excited trip module, among which there are two kinds of grounding module, electronic type and electromagnetic type, which can be selected by users.