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question about motor controller amp rating

Discussion in 'Electronic Basics' started by robb, Jul 22, 2007.

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  1. robb

    robb Guest

    i have a sewing machine motor controler (wired in series with motor) that
    uses a
    "carbon pile element" where pressure on the pile causes decrease resistance
    and more current to flow and at some pressure point a short by passes the
    carbon pile

    controler is rated at 95-145 volts and 0.7 amps

    now someone has claimed no troubles using the controller with 120v - 1 amp
    motor

    is this true ? why or why not

    ithought the motor would potentially try to draw more current than the
    controller was rated for and of course overheat etc

    any help greatly appreciated
    r
     
  2. neon

    neon

    1,325
    0
    Oct 21, 2006
    some designers as a rule allow for some design overstress. i do it for sure so 36% is good but not neccessary he or she might use it the question remaining is for how long Heat destroy fevices so for intermittent use it may last forever.
     
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