It is used to control a light receptacle or other device from a single location. When you wire a switch to a 120 volt circuit it functions to interrupt a single hot wire.
Leviton 20 Amp Single Pole Ac Quiet Toggle Switch White
What is a single pole switch. It is commonly used for onoff applications such as light switches. They have two screw terminals plus a ground screw. A single pole single throw switch serves in circuits as on off switches. Its useful for controlling three sources on and off at the same time. A characteristic feature of a single pole toggle switch is that it has on and off markings on the toggle. If you examine any single pole light switch your house youll see its two brass terminals and the ground screw.
One screw terminal is for the hot wire that feeds the switch from the power source. Single pole switches are most commonly used in home lighting circuits to control one or more lights or fixtures from a single location such as the entrance to a room. The single pole switch is the general purpose workhorse of switches. Three pole or three way switches are used to control one or more lights or fixtures from multiple locations such as the top and bottom of a flight of stairs. It has only one pole which is another way of saying it has a single pair of connection terminals. Three pole or three way switches are used to control one or more lights or fixtures from multiple locations such as the top and bottom of a flight of stairs.
But in single pole three way can control three inputs to three outputs simultaneously. This means it only has one input terminal and only one output terminal. The other terminal is for a second hot wire called a switch leg that runs only between the switch and the light fixture. Single pole switches are most commonly used in home lighting circuits to control one or more lights or fixtures from a single location such as the entrance to a room. This is something you will not find on three way or four way switches. Single pole switches are the most common light switches in a home.
It is a switch that provides a simple connect or disconnect capability across two terminals. A single pole switch usually refers to a single pole single throw switch spst. A single pole single throw spst switch is a switch that only has a single input and can connect only to one output. A double pole double throw dpdt knife switch. When the switch is closed the circuit is on. If you have one light switch that turns your light on and off then thats a single pole light switch.
A single pole single throw spst switch is a switch that only has a single input and can connect only to one output.