DP switch is often used to control three switches in a series on a single circuit from different locations. A twin pole switch can be used to operate two distinct circuits of lights, a fan, or both. In addition to this, the said product is designed for operating circuits like fans or cookers/ovens that must be completely isolated from the supply in order to be maintained safely. Cut both hot wires simultaneously in order to switch a 240-volt circuit. For this reason, you require this DP switch which actually manages two circuits. It is largely utilized for appliances that demand significant loads like showers and stoves.