There are three types of circuit breaker: the general circuit breaker, the modular circuit breaker and the differential circuit breaker. Their role is to ensure the safety of electrical installations, to avoid any risk of overload, overvoltage or short-circuit. To do so, they each have a high sensitivity defined by a threshold value, measured in amperes. Above this value, a power cut is automatically triggered to avoid any incident. The general circuit-breaker’s role is to protect your entire installation, while the divisional circuit-breaker focuses specifically on individual electrical circuits. As for the differential, it detects any current leakage. There are different types to suit the needs of each room and electrical installation : A: for electronic equipment ; AC: for domestic installations ; F: for more sophisticated environments.    Therefore, by installing the right switches and circuit breakers, you ensure not only the protection of your equipment, but also the safety of people by preventing potential electrical hazards.