AC Motor Wireing

Discussion in 'General Electronics Chat' started by garybuska, Jun 17, 2015.

  1. garybuska

    Thread Starter New Member

    Aug 12, 2014
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    I have a AC motor that came out of a cross cut shredder it has four wires coming out of it
    they are Red White Blue and Black There is a Capacitor that I think goes across the Blue and Black wires.
    This motor can run in either direction How would I hook it up?
    Direction is not that important but how would I make it run the other way if I need it to.

    Thanks
    Gary Buska
     
  2. #12

    Expert

    Nov 30, 2010
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    Got any hints, like a brand name or model number of the shredder? Part numbers on the motor? Is it a tiny motor? Is it more like 1/4 HP?
     
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  4. garybuska

    Thread Starter New Member

    Aug 12, 2014
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    Thanks motor came out of a medium duty 38082 cross-cut shredder
     
  5. MaxHeadRoom

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    Jul 18, 2013
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    Last edited: Jun 17, 2015
  6. garybuska

    Thread Starter New Member

    Aug 12, 2014
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    I followed the diagram that you attached and the motor runs like a champ. I may try to use this in my work area as a fan or maybe put a grinding wheel on it as use it as a grinder. From what I can see it looks like it has a built in thermal cutoff wired directly to the coil.
    The thing I liked about it best was the fact that it is brush-less. I had even thought about using it for a small wood lathe but being that it is only rated medium I do not think that would be wise. I wired the input through a combo switch circuit breaker that will trip as well just in case.
     
  7. mcgyvr

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    Oct 15, 2009
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    Caution.. Safety guards (spindle guard, tongue guard, work rest, eye shield,etc..) MUST be added to make it a suitable grinder.
     
  8. #12

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    Nov 30, 2010
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    Tongue guard? :eek:
    Which part is that? Srsly, I thought you meant the same thing as, "work rest".
     
  9. mcgyvr

    AAC Fanatic!

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    Nope.. Tongue guard is at the top of the opening to keep the shattered bits of the wheel from being embedded into your body when the wheel explodes..
    Or anything that does happen to get pulled into the wheel from coming back out.. hopefully
    https://www.osha.gov/SLTC/images/grinderdrawing.jpg
     
    #12 likes this.
  10. MaxHeadRoom

    Expert

    Jul 18, 2013
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    For a shredder I suspect it will be a 4 pole motor, if so, will not give the 3000+ needed for a bench grinder, a hand grinder is usually ~12krpm and uses a Universal (Brushed) motor.
    Max.
     
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