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Discuss Setting the overload on a motor circuit contactor. in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. biospark80
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    biospark80 Premier Power Ltd

    Location:
    Stoke-on-Trent
    Business Name:
    Premier Power Ltd
    Hi
    I haven't much experience on this subject so thought id ask!.
    I need to choose and set the overload on a circuit contactor containing an overload. It's a 3ph motor rated at 14.1 amp do i set the overload at the same current rating or just above due to the initial inrush?
     
  2. Pete999
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    Pete999 Trusted Advisor

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    Location:
    Northampton
  3. darkwood
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    darkwood It's all about Gmes Staff Member Electrician's Arms

    Location:
    West Yorkshire
    -What are the starting methods used for the motor? DOL, Star/Delta etc
    -If its DOL (Direct on Line) then either the FLC (Full Load Current) of the motor or if your familiar with the motors duty and task then a lower setting may be prefered which help diagnose certain problems early.
     
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  4. darkwood
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    darkwood It's all about Gmes Staff Member Electrician's Arms

    Location:
    West Yorkshire
  5. Spoon
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    Spoon Trusted Advisor

    Location:
    Lancashire
    Hi biospark.
    As darkwood has stated. It depends on the starting method.
    What method do you have?
     
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