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    jboy123's Avatar
    jboy123 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 20, 2008, 11:18 AM
    2 wire 220 volt connection
    I am replacing an electrical cooktop with a new one. The old cooktop was wired with white/black hot and the ground connected (no red). The new cooktop has white/black/red/ground. The feed is only a 2wire with ground (220v verified). What is recommended for connecting the new cooktop.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Jul 20, 2008, 06:06 PM
    Your ONLY option is to run a new 120/240v circuit, such as 6/3NM cable if you need a 50A circuit.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #3

    Jul 21, 2008, 09:57 AM
    Stan,

    I believe a cooktop only needs 30 Amp and an Oven/Range combinition is 40 Amps.
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #4

    Jul 21, 2008, 10:06 AM
    Don, this greatly depends on the unit.
    True, most cooktops are 30A, and most free standing ranges can use a 40A, there are many that require more, especially these days.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #5

    Jul 21, 2008, 10:08 AM
    Okay,

    Is that why although the NEC list 30 and 40 amp respectively, you are still directed to the plate on the unit?
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