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    shortround3's Avatar
    shortround3 Posts: 6, Reputation: 1
    New Member
    		  
    #1

    May 18, 2008, 07:25 AM
    AWG size for 40 amps.
    Remodeling kitchen. I now have an oven with 8AWG and a 30 amp breaker. The new oven requires 40 amps. The run is 20 feet. Will the 8 awg do with a 40 amp breaker?

    Thanks,

    Shortround3.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #2

    May 18, 2008, 08:22 AM
    8 AWG - Copper, is rated for 40 Amps.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #3

    May 18, 2008, 08:51 AM
    #8 in NM and UF cable is rated for 40 amps.

    #8CU THHN and most other conductor/cable types is rated for 50 amps.
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
    Senior Member
    		  
    #4

    May 18, 2008, 01:48 PM
    Quote Originally Posted by stanfortyman
    #8 in NM and UF cable is rated for 40 amps.

    #8CU THHN and most other conductor/cable types is rated for 50 amps.
    Good answer! Complete, with facts!
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