Siemens 5SM3345-6

The Residual Current Circuit Breaker (RCCB) is a critical safety device designed to protect electrical circuits from overcurrent conditions. This particular model is a 4-pole type A breaker with a rated current of 125A and an operating voltage range of 230-400V.

It operates on the principle of residual current operation, which means it can detect even the smallest leakage currents in the circuit. The breaker is designed to trip when such a current is detected, thereby preventing potential hazards and damage to equipment or personnel.

This model is equipped with a 4-pole design for enhanced protection against short circuits and overloads. It also features a Type A rating, which indicates its suitability for use in AC power systems. The breaker has an operating current of 125A and a trip current sensitivity of 30mA, ensuring reliable operation under various conditions.

The RCCB is designed with a depth of 70mm, making it suitable for use in a wide range of applications. It also comes with a FI (Fuse Indicator) protector, which provides an additional layer of protection against faults and overloads.