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    cks04's Avatar
    cks04 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 4, 2010, 01:59 PM
    100amp blown fuses
    I am having a problem with blown fuses,restaurant has a 100 amp box just for a/c units
    But recently of the heat the fuses blown once all the a/v are on.
    Last year we have the same units but we did not have any problems at all.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Aug 4, 2010, 02:15 PM

    This is in a restaurant?

    Call and electrician or HVAC guy right away.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Aug 4, 2010, 06:54 PM

    I agree with Stan but you may be experiencing a "brownout" with lowered voltage in. In this case, if watts are the same, the amperage draw will go up. I would guess these are 240V or higher.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Aug 4, 2010, 07:05 PM

    Any number of causes. One such cause is a momentary power glitch and no anti-short cycling timer.

    No random delays on start up.

    And LOTS of other things.
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