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When light fixtures are on, the power may flow through the red or black wire depending on the position of the toggle lever. They can also interrupt the circuit flow to help turn the light fixture off. In a typical circuit, traveler wires come with red and black insulation, and they allow electrical currents to move seamlessly between switches. These are "traveler terminals", and the wires that run between them are called "traveler wires". The other two terminals on the body will be used to connect the wires that run between the three-way switches.
3 WAY SWITCH WIRING FULL
This extra terminal is darker in color than the other terminals, and it's known as the "common connection" aspect of the switch.ĭepending on the location of your switch in your full circuit layout, the purpose of the extra connection will be to either facilitate the movement of the current from the power source or move the current from one switch onto the light fixture. While standard switches come with dual terminals, one on either side in the switch, alongside a grounding terminal on the metal strap, three-way switches feature an additional terminal. One of the biggest differences of all is apparent in the nature of the screw terminals on the switch. Additionally, the switch toggle lever doesn't come with the on/off markings present on a single-pole switch. If you examine one of these devices, you'll notice that the body is much larger than a single-pole switch.
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This is because many aspects of the three-way switch can differ drastically from the standard pole switch. Importantly, changing a standard switch for a three-way switch isn't necessarily a straight-forward process.
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Wiring a 3 Way Light Switch and Screw Terminals
3 WAY SWITCH WIRING INSTALL
In this article, we're going to introduce you to everything you need to know about three-way switches and the things that might go wrong if you attempt to install one yourself. While the installation of three-way switches might not be as dangerous as some other electrical projects out there, it's worth noting that any kind of specialist alteration in your home should probably be handled by a professional. If you don't have 3-way switches already installed in your home, then you may be tempted to try installing them yourself. For instance, in a large room, or hallway, you can install three-way switches at both ends for convenience.ģ-way switches can be a common fixture in some homes, particularly those with multiple floors when homeowners want to control lighting around a hallway or set of stairs. Its unique wiring means that you can control a ceiling light and other fixtures from two locations in the same room. If you're new to the electrical world, then the first thing you need to know is that a three-way switch is simply a variation of the basic single-pole switch.
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