Chint 40A B Curve RCBO 30mA Type AC 10kA 1 Pole + Neutral

The Chint NB3LEU-B40 is a compact 1 Pole + Neutral RCBO (Residual Current Breaker with Overcurrent Protection) designed to provide combined protection against earth leakage, overload, and short-circuit faults in a single modular device. With a 40A rating, 30mA residual sensitivity, and B Curve tripping characteristic, it is suitable for residential and commercial circuits where both personal protection and circuit protection are required.

This device is part of the Chint NB3LEU series, widely used in modern distribution boards where space-saving, high safety performance, and reliable fault detection are essential.