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3-way Switch Wiring Diagram Line to Light Fixture

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Ashley
Published on 2021-12-16
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In another configuration, the power supply enters the fixture first, goes into one switch, and finally terminates at the other switch closing the circuit. This wiring diagram helps you understand the type of cables you will require for this configuration. In building wiring, multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location. A common application is in lighting, where it allows the control of lamps from multiple locations, for example, in a hallway, stairwell, or large room. In contrast to a simple light switch, a single-pole, single-throw (SPST) switch, multiway switching uses buttons with one or more additional contacts, and two or more wires are run between the switches. When the load is controlled from only two points, single-pole, double-throw (SPDT) switches are used. Double pole, double throw (DPDT) switches allow control from three or more locations. In alternative designs, low-voltage relay or electronic controls can switch electrical loads, sometimes without the extra power wires.
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3-way Switch Wiring Diagram Line to Light Fixture
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