Residual Current Device Rcd. It can also provide some protection against electrical fires. An rcd or residual current device is a life saving device which is designed to prevent you from getting a fatal electric shock if you touch something live such as a bare wire.
It is more advanced than a standard circuit breaker and works by monitoring the flow of electrical current between live and neutral conductors. Item options sign in for your pricing. When using electrical equipment or power tools hazards such as damaged leads and cords faulty wiring and dampness can lead to serious electric shocks or electrocution.
The main application is to prevent electrocution but rcds can also be used to protect equipment especially against fire.
A residual current device rcd residual current circuit breaker rccb or ground fault circuit interrupter gfci is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock. How smoke detectors work. Residual current device rcd it is not quite clear when and by whom the first residual current device rcd was developed but it certainly appeared on the market in the 1950s and was initially used by some utility companies to fight energy theft due to the use of currents from phase to earth instead of phase to neutral. Item options sign in for your pricing.