Chint 25A B Curve RCBO 30mA Type AC 10kA 1 Pole + Neutral

The Chint NB3LEU-B25 is a compact and highly reliable 1 Pole + Neutral RCBO (Residual Current Breaker with Overcurrent Protection) designed to provide complete circuit protection in a single device. It combines earth leakage protection, overload protection, and short-circuit protection, making it ideal for modern residential and commercial electrical installations where safety and space efficiency are important.

With a 25A rated current, 30mA residual sensitivity, and B Curve tripping characteristic, this RCBO is suited for final circuits with low inrush current such as socket outlets, lighting circuits, and general-purpose distribution. The 30mA earth leakage sensitivity provides additional personal protection against electric shock, while also reducing the risk of fire caused by insulation faults.

Part of the NB3LEU series, this device is widely used in consumer units and distribution boards where compact, all-in-one protection is preferred over separate MCB and RCD devices.