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Micro Switch help

Discussion in 'General Electronics Discussion' started by Hannon, May 31, 2013.

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  1. Hannon

    Hannon

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    May 31, 2013
    Last edited: May 31, 2013
  2. duke37

    duke37

    5,364
    769
    Jan 9, 2011
    That looks like a standard microswitch.

    There are miniature and subminiature switches.
    What is the size?

    The one you show seems to be a make only, most are change over and so have three connections.
     
  3. Hannon

    Hannon

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    May 31, 2013
    It would be about 27mm that's not including the pin on the left
     
  4. duke37

    duke37

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    769
    Jan 9, 2011
    The standard microswitch body is 27.8*15.9*10.3 (Maplin)

    I have some old catalogs here
    Maplin GW71N
    RS 159-4411 (cheaper but they come in fives)

    Check that I am correct.
     
  5. Hannon

    Hannon

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    May 31, 2013
    Hi Duke37 thanks for all your replies, this was the micro switch that i took out of a pressure washer this afternoon.
    The plunger on top of it is just falling in I'd say the spring inside is broken. It's the 16a 125-250v ac, 1hp 125v ac, 2hp 250v ac part I'm wondering about. I have seen one written as 16A 1/2Hp 125/250V AC would this do the job ? My one here has only two pins and have seen mainly ones with three pins. If i use a three pin one will the spare third pin stay live when the solenoid flicks back ?
     
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