A safety switch is a device that protects you or yourself and others from electric shock in your home or workplace. Safety switches monitor the current that is passing through it and when it detects a ‘leak’ it shuts itself off.
Safety switches can often be mistaken for circuit breakers, which work in a very different way. Ultimately, safety switches are installed to potentially save a life in the event of an electrical incident. It is now law to have a safety switch installed on all circuits up to and including 32Amp circuits, so don’t be alarmed if an electrician is explaining that they need to install one.