Electrical device used to open and close an electric circuit.

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1answer
2k views

How to determine what 3-way switch system was used?

How can I tell if an old Knob & Tube 3-way switch is still legal by the modern NEC? Specifically I am trying to tell if my switch is a "California 3-way" (or "Coast 3-way", "Hollywood 3-way", ...
2
votes
1answer
1k views

Covered or Locking Light Switch?

I have an attic fan that is operated by a regular old light (toggle) switch. The problem is that the switch was installed by the previous owner in the master walk-in closet, right where one would ...
3
votes
1answer
211 views

Identify type of switch

Can anyone identify the type of switch this is? There are 4 connectors at the bottom and 3 at the top. I've already purchased a 2 gang 2 way switch which turned out to be the wrong one (it only has ...
2
votes
1answer
190 views

Is it safe to replace a switch with a dimmer on halogen spots?

I live in Europe (so we're on 220V), and in the house we've got two halogen spots (on a transformer) on a plain switch. Is it safe to replace the switch with a dimmer (like these)? Do the transformer ...
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vote
2answers
770 views

How do I install a 2 gang low voltage bracket?

Purchased varying 1 gang and 2 gang low voltage screw-in type brackets as seen here. Upon inspection they appeared to simply sit in the wall with the the screws being screwed into the side of the dry ...
1
vote
1answer
257 views

Installing a surface switch

I have a little utility room with bare cement walls. So I want to install a little surface switch. As far as i understand normally switches are installed on a hot wire, but this switch has no ...
2
votes
1answer
456 views

Adding new lights to a switch

I have a single light controlled by a switch in my garage. It's really pathetic, so I decided to add some shop lights to the same switch. Upon opening up the light wiring box, I found not 1 but 4 ...
6
votes
1answer
547 views

What do I need to replace 4 light switches on the same circuit?

So we have a single light in our living room that can be turned on/off from four different switches at various entrances to the living room. We're currently replacing all the switches in our house as ...
5
votes
1answer
12k views

Is it ok to wire light switches and lights with 12/2 cable?

It sounds like light switches and lights are usually wired with 14/2 cable. Is it okay to use 12/2 cable instead? Would I need special switches?
2
votes
3answers
8k views

Is there such thing as a 4-way dimmer?

I have a 4-way switch I want to replace with a dimmer. I understand I can put the dimmer at one of the other 3-way switches, but they're more out of the way. Does such a device exist? If not, what ...
1
vote
2answers
370 views

Installing a switch for a water heater's lower element

I'd like to install a switch for the lower element of my water heater. I haven't even looked inside the water heater yet, but I'm a little confused about what the best way to go about doing this ...
10
votes
1answer
8k views

How exactly does a 3-way switch work?

I just finished replacing all of the switches and outlets in my apartment, after fighting a long war with a weird 3-way switch. Needless to say, I won, but I'm still trying to grasp the concept of how ...
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votes
7answers
4k views

Home light switch circuit with 5 switches

I'm new to the amazing wold of electronics and starting out small. I think... Early 2010 me and the wife bought a house that was build in 1979. Now I started replacing light switches and encountered ...
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4answers
4k views

How do I take a live wire off of a two way switch?

if I know how to take the live wire off then my job is easier.
7
votes
4answers
1k views

What should I do with a double gang box if I no longer need two separate switches?

We're relocating our TV to a side of our living room that has a power outlet controlled by a wall switch. The switch is part of a double gang box (1 switch controls the porch light, the other ...