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Thread: Wire wound resistor wattage identification by dimensions

  1. #1
    Join Date
    Aug 2003
    Posts
    3

    Wire wound resistor wattage identification by dimensions

    Where can I find a chart or other method to identify the wattage of a Wire Wound Variable Resistor?
    The label is: OHMITE DIVIxxHM NO. 0568 250 ohm xx46 (xx= illegible characters). It is 4" long x 1/2" outside Dia. x 1/4" inside dia.
    I am replacing it with a slightly larger wattage rheostat for convenience and because the original ceramic tube broke when it blew.
    I've checked a few distributors and other elec. sites to no avail. Also looked in a few basic elec. reference books. Any ideas.

  2. #2
    Join Date
    Feb 2003
    Posts
    3,172

    Re: Wire wound resistor wattage identification by dimensions

    Look for one with the same resistance and physical size.

  3. #3
    Join Date
    Jun 2003
    Location
    Hawthorne, NY
    Posts
    2,389

    Re: Wire wound resistor wattage identification by dimensions

    Have you tried the Ohmite website?
    http://www.ohmite.com/cgi-bin/showpa...uct=210_series

    It's now the 210 series and is 50 watts for that physical size.

  4. #4
    Join Date
    Aug 2003
    Posts
    3

    Re: Wire wound resistor wattage identification by dimensions

    Thanks Bennie. The situation is that my customer brought me the broken part instead of a service call.

    [ September 07, 2003, 09:06 AM: Message edited by: macon ]

  5. #5
    Join Date
    Aug 2003
    Posts
    3

    Re: Wire wound resistor wattage identification by dimensions

    Thanks Hbiss. I have the exact replacement P/N and the rheostat P/N from the Ohmite link you provided.

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