空中断路器

Air circuit breaker DW45 Air Circuit Breaker (referred to as circuit breaker hereinafter)is a kind of breaker with AC 50Hz,400V,or 690V,and its rated current is 400-6300A.It is mainly used in power distribution network to allocate electric power and protect the line and supply equipment against overload,under voltage,short circuit,single phase grounding fault,etc.The core part of the circuit breaker adopts intelligent type dropout device,which bears accurate alternative protection performance and can avoid unnecessary power failure,thus improve the reliability of power supply.