If you had three entrances to a room you may want a light switch at each entrance. There are no onoff markings on the switch toggle.
Ka 2243 Three Way Switch Wiring Symbol Wiring Diagram
Three way switch symbol. The term 3 way actually describes the inner workings of the physical switch which is different from a standard toggle switch. Such markings are not needed with this type of switch as they are. There are three screw terminals on the body of the switch in addition to the green grounding. 4 way switch the 4 way switch symbol describes one or more 4 way switches which are commonly found in very long hallways or stairways where there is more than two access points. Most of the switch symbols can be changed in their appearance style and color to meet the requirements. If you have the symbol for a regular switch a 3 way switch isthe same symbol with a 3 next to it like a subscript.
The switch symbols below include spst spdt dpst dpdt make contact break contact two way contact 2 position switch 3 position switch 4 position switch limit switch inertia switch mercury switch and also delay switch such as time delay switch time delay break flow actuate switch liquid level actuated switch gas flow actuated switch temperature actuated switch and. Use it for drawing electrical design floor and building plans devices and equipment layouts in the conceptdraw pro diagramming and vector drawing software. The 3 way switch symbol is used to describe a pair of light switches which are found in areas such as a hallway or stairway where a 3 way switch is located at opposite ends. As above with the three way switch but here three switches will control typically a light or group of lights. The vector stencils library switches contains 25 symbols of electrical switches. Now discussing 3 way light switch wiring diagram as also discussed above the color codes of the wires as having three insulated conductors as black as hot red as switch wire or called traveler and white as common wire as also shown when light is connected to both black and white wires.
There are two clear giveaways that identify a switch as being a three way type. The vector stencils library switches is included in the electric and telecom plans solution from the building plans area of conceptdraw solution park. Add a small 3 to the upper right corner of the symbol as though you were cubing it to indicate a three way switch.
Gallery of Three Way Switch Symbol
