Chint 40A 2 Pole C Curve DC250V Solar MCB

The CHINT NB1-63DC-2P-C40 is a reliable 2-pole DC miniature circuit breaker (MCB) designed for efficient overload and short-circuit protection in photovoltaic (PV), solar energy, battery storage, and industrial DC power systems. Rated at 40A with a C-curve tripping characteristic, this breaker is engineered to safely protect DC circuits operating up to 500V DC.

Manufactured in accordance with IEC/EN 60947-2 standards, the NB1-63DC-2P-C40 delivers dependable switching performance, high breaking capacity, and long operational life in demanding renewable energy and industrial environments. Its compact DIN rail mounting design and robust modular construction make it ideal for solar combiner boxes, DC distribution systems, battery storage installations, and communication power applications.