Auxiliary contacts Rated current auxiliary contacts rated current is given to the rated working voltage

Main contacts Rated current according to the rated voltage, rated power, rated working system, the use of such categories, and enclosure type determined to ensure normal operation of the contactor current value. electric meter Rated current auxiliary mcb circuit breaker current is given to the rated voltage, rated operating frequency, using categories and electrical life while under the current value of the auxiliary Circuit breaker generally not greater than 5A. Use category Use category is based on the contacts of different control objects during run their own different characteristics and requirements. Different types of contacts with the turn-on, breaking capacity and electrical life requirements are not the same.