VKW2-1600 Universal Circuit Breaker (hereinafter referred to as circuit breaker) is mainly used in the distribution network of AC 50Hz, rated working voltage 400V, rated current 200A to 1600A, (690V) Used for distributing power, protecting line and power equipment from overload, under-voltage, Short Circuit, single-phase grounding, etc. . The circuit breaker has the functions of communication and intelligent protection, which can avoid unnecessary power cut and improve the security and reliability of power network operation. Circuit breakers up to 630A may be used as motor protection to control the occasional starting and stopping of the motor.