Converting a two way light switch to a three way light switch is a great way to solve common problems with light switching. Take a look at the switches in your home.
How To Connect A 2 Way Switch With Circuit Diagram
Can you use a 2 way switch for 3 way. Feed a length of 14 3 type nm cable or 12 3 if youre connecting to 12 gauge wire between the two boxes. Quick tip 15 garage door safety. If its reverse on the active switch simply switch the two contact wires and leave the common wire as it is. A three way switch is designed to work in tandem with another three way switch to allow you to control a fixture from two different locations. The 2 way switch or single pole double throw switch is a three terminal switch. Well break it down pretty soon.
For this reason it doesnt have onoff markings because it can turn off the power when it is both up and down depending on the orientation of the other switch. A regular two way switch allows a user to turn on the lights at one location only while the three way light switch allows you to turn the lights on and off at two locations with ease. A three way switch has no marking because there is no consistent on or off position. Here 1 terminal is the input and the other two are used as outputs. The three way switch is a variation of the standard single pole switch which controls a light only from one locationa third type is the four way switch which is used in conjunction with two three way switches to control lighting from more than two locationsthis configuration may be used in open plan homes or in large kitchens or great rooms where a central bank of lighting fixtures might. Add an electrical box for the second 3 way switch in the basement.
Its okay if this is too complex for you. The convention is on for switch up. You may be surprised with what you have overlooked. Now lets look at the 3 way switch. Two way switches are single pole single throw spst with two connection wires and are wired with 122 or 142 cable between the switch and fixture. The on off can change depending on the position of the second three way switch.
Actually since the other switch is buried as you say you can just use the existing 3 way switch as it is. Its likely youll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. A three way wall switch is single pole double throw spdt with three connection wires and is typically wired with 123 or 143 cable between the two switches.
Gallery of Can You Use A 2 Way Switch For 3 Way
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