ABB S403 M C16 Miniature Circuit Breaker S403 M C16

The miniature circuit breaker, also known as automatic circuit breaker, protective switch, or modular switch, from manufacturer ABB with type number S403 M C16 is an electrical switch for protecting electrical circuits. It serves to secure electrical installations against overload and short circuit. The device has the dimensions 10 x 10 x 10 cm and weighs 0.33 kg. Miniature circuit breakers are essential components in electricity distribution and protect lines and connected loads from damage. They find typical application in building automation, in control cabinets, and in industrial power supply.