Remove timer

Discussion in 'General Electronics Chat' started by ydavis, Feb 21, 2007.

  1. ydavis

    Thread Starter New Member

    Feb 21, 2007
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    0
    Sorry if this is too elementary, but I don't want to mess up my electrical system.
    I have a in-wall timer and I'd like to switch it to a regular switch. When I took off the timer, there were 3 wires - black, white, and red (I don't have a grounding wire). Which two do I connect to the regular switch?:confused:
    Thanks!
     
  2. Gadget

    Distinguished Member

    Jan 10, 2006
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    Those colours mean nothing unless we know what country and electrical system you use..... For instance, over here red is 230v phase, black is neutral and green is earth....or alternately.... Brown is phase, blue is neutral and green/yellow is earth.

    As I understand it, in the USA black is actually 110 volt Phase.. white is neutral, and I have NO idea what they use as earth.
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Sounds like you had a cruddy electrician. If the proper code was followed, the white should be AC neutral, the black AC hot, and the red AC hot in a 230 volt installation. The wiring obviously does not follow code.

    You will need a meter or test lamp to figure out the wiring. With luck, there will be 115 VAC between the black and white wires (with the breaker on - be careful). If that's the case, you might be safe to assume that the red wire carries 115 volts to the load.
     
  4. ydavis

    Thread Starter New Member

    Feb 21, 2007
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    Gadget: I live in the USA and green is earth (ground).

    beenthere: If there is 115 VAC between the black and white, I should connect the switch to the black and red?
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Guardedly, yes. I would want to meter the wiring to insure that the white was neutral, just to be sure. But it's just about got to be that way.
     
  6. ydavis

    Thread Starter New Member

    Feb 21, 2007
    3
    0
    Thanks a lot beenthere!:)
     
  7. tek_fool

    New Member

    Feb 24, 2007
    12
    0
    ..........
     
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