Circuit breaker replacement unit (retrofit)

Block replacement circuit breaker (retrofit )are designed to upgrade the input and output blocks of electrical energy in the existing NKU voltage up to 690 V AC frequency 50 or 60 Hz, to conduct current in normal mode, infrequent operational switching on and off (the number is specified in the operating manual for a particular AV from the delivery set) of the specified circuits and protection of electrical equipment from overloads and short circuits. BZAV is a mounting base on which a new AB with contact leads-adapters is installed. The mounting base ensures mating with the mounting holes of the circuit breaker to be replaced. The contact leads-adapters ensure precise mating of the new circuit breaker leads with the busbars for connection of the replaced AB