63A 1 Pole B Curve 6KA MCB (NB1‑63B1P63)

The 63A 1 Pole B Curve 6KA MCB (SKU: NB1‑63B1P63) is a high-quality miniature circuit breaker from CHINT’s NB1‑63 range, designed to protect electrical circuits from overload and short-circuit faults. With a robust 63 ampere rating and a B curve trip characteristic, this single-pole breaker offers reliable protection for domestic and light commercial electrical installations. Its compact design fits standard DIN rail systems, making it easy to install in consumer units and distribution boards.

Built to meet industry standards, this MCB provides a 6 kA breaking capacity, ensuring it can safely interrupt fault currents up to 6000 amps without damage. The B curve tripping response is ideal for general resistive loads such as lighting circuits and everyday sockets, offering dependable performance where rapid response to overcurrents is required. It is designed for operation on 230 V AC single-phase systems, suited to UK mains and similar supply networks.

Constructed with durable, flame-retardant materials and protected to IP20, the NB1‑63B1P63 withstands everyday electrical demands while maintaining safety and longevity. The thermal-magnetic mechanism ensures that in the event of an overload or short circuit, power is cut quickly and effectively to prevent damage to wiring and connected devices. This MCB is suitable for use in homes, offices, workshops and other environments where reliable circuit protection is a priority.

Whether you are building a new consumer unit or replacing an old breaker, the CHINT NB1‑63B1P63 offers dependable protection you can trust. Its proven performance, compact footprint and easy installation make it a smart choice for electricians and DIY installers alike.

63A 1 Pole B Curve 6KA MCB (NB1‑63B1P63) – Data Sheet