Two Pole Light Switch Diagram. In the schematic diagram above the light mode is off but the light is turned on when the switch is toggled. Streetlights signs traffic signals seasonal decorations fire and police call boxes antennas municipal communications.
When a bulb is controlled by two switches a gang 2 way switch is used. This switch allows the flow of current only when it is kept on. Assuming it is a steel box.
One gang two way switch wiring.
In some applications however such as hallways and larger rooms having a single switch can be inconvenient so it might be useful. It can be also called as an onoffon switch as it has an off position in the center. A switch loop single pole switches light dimmer and a few choices for wiring a outlet switch combo device. The basic type of pilot neon light switch can be wires same as combo of switch and outlet device as shown in fig below.