ABB S403 M C16 Miniature Circuit Breaker

The miniature circuit breaker, also known as automatic circuit breaker or MCB, with the type number S403 M C16 from ABB is an electrical switch for securing electrical installations. It has the dimensions 10 x 10 x 10 cm and weighs 0.33 kg. Miniature circuit breakers protect electrical installations and end devices against overload and short circuit by automatically interrupting the circuit in case of faults. They are typically used in distribution cabinets, switchgear, and control systems in residential, commercial, and industrial buildings.