Legrand Residual Current Circuit Breaker with Overload (RCBO) and positive contact indication for control. Gives protection against short circuits and overloads, and isolation of electrical circuits. It protects people from direct and indirect contact and protecting installations from insulation faults. Power supply either from the top or the bottom. This Din mounted combo RCD/MCB now comes in a compact 1 module size to save space in distribution boards on both residential and commercial installations.