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    AnnaZ's Avatar
    AnnaZ Posts: 1, Reputation: 1
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    #1

    Feb 15, 2008, 10:50 AM
    30 amp buss fuse - TL vs W
    RE: electric clothes dryer fuse to replace

    What is the difference between these 30 amp buss fuses -- TL vs W?

    When should I use TL and when W?
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Feb 16, 2008, 06:05 AM
    The W series is a fast acting fuse, and the TL series is a Time Delay.


    Time delay is designed to allow the high inrush current from a motor starting to flow, and allow the motor to start. The inrush current reduces down to normal running current after a few cycles.

    A W offers more precise protection, if needed, by limiting current to a level closer to the fuse rating. Depending on the size motor, or other device with high inrush current, a W fuse may open if the inrush current is too great.


    For most purposes, including this dryer, the Time Delay fuse is recommended.
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