Moulded Case Circuit Breaker(MCCB) provides reliable protection for medium and low voltage power distribution. NCM2 series molded case circuit breakers cover 250A-1600A and are suitable for photovoltaic energy storage, industrial control, construction, etc. It has the advantages of high breaking, modularization, and intelligent tripping, bimetallic strip + electromagnetic tripping, supports AC 500V/DC 1500V, breaking capacity 6kA/10kA, and fast response to overload, short circuit, and grounding. The frame current is 250A-1600A, 1P-4P, and operates at -5℃ to +40℃. The modular design supports accessory expansion and realizes remote monitoring.