Favorite Single Pole Two Way Switch
The switches have two screw terminals plus a ground screw.
Single pole two way switch. One brass terminal is designated for the incoming hot wire from the power source and the other is for the outgoing hot wire to the fixture. Both wires are usually black which is one of the two colors the national electrical code assigns to hot wires. Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used.
This article discusses the two way switch wiring function working and circuit diagram. Two for incoming hots and two for outgoing hots. The one way single pole two way double pole are the two types of an electrical switch.
The 2 way switch or single pole double throw switch is a three terminal switch. A double pole switch is what you need to control a 240 volt device because 240 volt circuits have two hot wires. As mentioned above each switch is a 3 way i e.
So why is it called a 3 way switch. Now let s look at the 3 way switch. The three terminals are usually named com l1 and l2 but sometimes com 1 way and 2 way are also used.
Basic 2 way circuit power coming in at switch. The difference between a single and double pole switch is that the latter controls two circuits at the same time. The number of throws indicates how many different output connections each switch pole can connect its input to.
While there are various styles they typically have on off markings on a toggle switch to denote whether power is flowing to the device. Red is the other allowable color the. Because it uses two switches and one appliance.