Have you ever wondered how a three-way switch works? It’s a common piece of electrical hardware that’s found in many homes, but the precise workings of it can seem surprisingly mysterious. After all, you don’t want to mess around with electricity carelessly. By understanding what a three-way switch is and how it works, you can safely use it to manage your home’s lighting.
The common in a three-way switch refers to the terminal that connects the switch to the electrical circuit. This versatile device is made up of three wires – two of them hot and one neutral. Each hot wire carries power from the circuit breaker panel to the switch. The neutral wire brings the power back from the switch to the light fixture or other electrical device. The common terminal or wire is the connection point between the two hot wires and the neutral wire. In order for the switch to work correctly, each wire must be securely connected to its respective terminal.
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