What kind of switch has Off - One On - Two On ??

Discussion in 'The Projects Forum' started by DrAlloway, Apr 7, 2011.

  1. DrAlloway

    Thread Starter New Member

    Apr 7, 2011
    I am making my own heated jacket and gloves for my motorcycle.
    So it is 12v DC

    I would like to have 2 independent circuits in my Jacket and be able to turn them Off, or One On, or the Other On, or Both On. What would such a switch be named ( so I can buy one ) ??

    Also: I would like to have 2 independent circuits in the Gloves but only one small plug to connect to the jacket sleeve. I have found DC power plugs but they all seem to be only 2 leads (ground and power). Do they make ones with 3 leads (common ground, power 1 and power 2). I am thinking like a stero RCA plug but don't know if they can carry 12v DC and 5 amps.

    Thanks for helping out a newbie, Bob
  2. studiot

    AAC Fanatic!

    Nov 9, 2007
    Welcome to AAC

    Each position of your switch is called a 'way' - In your case you require 3 ways.

    Each circuit you switch is called a pole - you require 2 poles (one for the gloves and and one for the jacket.

    So your switch is called a 2 pole 3 way switch.
    These can be obtained as rotary or linear switches.

    Coaxial plugs and cables (especially rca types) are not recommended for power transmission.
    There are a variety of suitable 3pin plugs and mating sockets available designed to accept power (5amp) cable. Some are weatherproof or even totally waterproof. It is also a good idea to go for a locking type, so that it can't work loose once plugged in.
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    Oops. Delete -- I didn't see the both on part.


  4. Bernard

    AAC Fanatic!

    Aug 7, 2008
    I would use two slide switches, or toggle, for each function; one SP-DT- center off & a SP-ST. Power to common of SP-DT, SP-ST, shorts the two NO contacts. Now you have jacket A on or off, jacket B on or off or both on or off. Two more switches for gloves.
  5. DickCappels


    Aug 21, 2008
    A switch is known as an ON-ON-ON type, and it can be connected to provide the functionality you describe.