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Need Advice On Limit Switch, Electrical Components

Discussion in 'Ice Management' started by White Gardens, Dec 24, 2014.

  1. White Gardens

    White Gardens 2000 Club Member
    Messages: 2,665

    Getting my pre-wetting system set up for my truck.

    What I'm going to do is use this limit switch. When the lever on my hydraulic salt spreader hits it, it will engage the 12v electric pump. This will help to keep me from having to hit a rocker switch or toggle at the same time as I turn on the spreader.

    There will be a rocker switch though to cut power to the circuit when I don't need to use the liquid pre-treatment, or the tank runs empty.

    micro Switch.jpg

    For this pump

    pump.jpg


    The micro switch shows up to a 15amp current. The pump is 11 amp draw.

    But, my concern is that I might still need a circuit relay where the limit switch will engage the relay rather than the switch being part of the main draw.

    If anyone has any insight on this, I would appreciate it. Otherwise I know a good local auto electric shop that might be able to help me out.

    Thanks




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    micro Switch.jpg

    pump.jpg
     
  2. White Gardens

    White Gardens 2000 Club Member
    Messages: 2,665

    I actually just purchased a relay.

    Seeing the numbers on the limit switch leads me to believe the amp draw is going to be too much for the switch.

    The relay will also give me the option to add a bigger electrical pump, or multiple pumps if need be also.



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  3. John_DeereGreen

    John_DeereGreen PlowSite.com Addict
    Messages: 1,879

    Good choice on the relay. I'd be willing to bet that pump draws over your switch limit on startup.
     
  4. White Gardens

    White Gardens 2000 Club Member
    Messages: 2,665

    The 15amp number came from the Ac current draw.

    I noticed the DC current draw was far less.
     
  5. White Gardens

    White Gardens 2000 Club Member
    Messages: 2,665

    The 15amp number came from the Ac current draw.

    I noticed the DC current draw was far less.


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