A double pole switch is an electrical switch that controls two separate circuits simultaneously. It has two sets of contacts, allowing it to turn on or off both the live and neutral wires of a device. This feature makes it ideal for high-voltage applications, such as in home wiring or industrial equipment, where safety and efficiency are crucial. These switches are commonly used in light fixtures and appliances that require a higher voltage, ensuring that the entire circuit is disconnected when the switch is off. By controlling both poles, double pole switches help prevent electrical hazards and improve overall safety in electrical systems.