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Moulded-Case Circuit Breaker SM40E1 intelligent adjustable MCCB

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 SM40E1 series intelligent adjustable moulded-case circuit-breaker ( IAMCCB for short hereafter), is one of the SM40 series products and a new-style one-developed by this factory be means of the international advanced know-how of design and manufacture theory and suitable for the non-frequent conversion in the circuit of AC 50Hz, rated insulating voltage 800V, rated working voltage 400V and below, and rated working current up to
1600A and the non-frequent starting of motors. The breaker functions overload long-delay inverse-time limit,short-circuit short-delay inverse-time limit, short-circuit short-delay definite-time limit, short-circuit instantaneous and under-voltage protections so as able to protect lines and power equipments against damages.