Electrical life AC contactor is affecting the life of key factors

AC contactor is a frequent switching on and off for the main circuit or the electrical control circuit is large, widely used to control motors and other electrical loads. Electrical life AC contactor is affecting the life of key factors, life in  mcb circuit breaker  life of 5% to 20%. Electrical life AC contactor AC contactor test is to verify the  Circuit breaker , quality and an important tool. Topics based on AC contactor electrical life test requirements, developed industrial  Air circuit breaker  as the center of AC contactor electrical life means life test device introduced electric power, simulated load and computer control hardware design of three parts.