What is a disconnect switch?

A disconnect switch, also known as a disconnect or isolator switch, is a crucial safety device used in electrical systems to ensure that a circuit can be completely isolated from its power source. It allows for maintenance or repair work to be performed safely by cutting off the electrical supply. Disconnect switches can be operated manually or automatically and are commonly found in industrial, commercial, and residential applications. They help prevent electrical accidents by providing a clear means to de-energize equipment.