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Fuse

Discussion in 'Electrical Engineering' started by Kilowatt, May 7, 2004.

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  1. Kilowatt

    Kilowatt Guest

    I blew a fuse on my UPS. The fuse holder says the fuse is a T 5.0A fuse.
    Wal-Mart didn't have any that were the same length as the one I had. We
    couldn't even tell by the markings that Wal-Mart had on the fuses to be able
    to tell what ratings they were.

    I went to Radio Shack and they didn't have one but I did notice that they
    cost almost 3 times as much as they did at Wal-Mart.

    From the fuses I looked at Radio Shack it looks like the clear glass tube
    fuses only have two types.
    All the fuses that are slow blow are the same length but longer than the
    instant trip kind which are all the same size but shorter.

    Other than that you can put a 1 amp fuse or a 5 amp fuse in the same holder.
    Right?
     
  2. w_tom

    w_tom Guest

    There are AGC (larger) and GMA (smaller) types. There are
    slow blo and regular versions. That determines how fast or
    how much overcurrent that fuse will withstand without
    blowing. Then there are low voltage (32 volt) and 250 volt
    versions. First learn the voltage and type (regular or slo
    blow) to obtain correct fuse of same physical size. Chances
    are the fuse must be a 250 volt type. If in doubt, get the
    250 volt type. If fuse not available, then a temporary fuse
    of less amperes is quite acceptable. Chances are your UPS has
    internal problems; will be killing fuses anyway. Even a 2 amp
    fuse should work without failing if only for testing UPS
    integrity.
     
  3. Kilowatt

    Kilowatt Guest

    My UPS fuse blew when I plugged in another computer that had a bad power
    supply.

    I am pretty sure I can select the right fuse when I find one.

    One thing I wanted to mention again is that the fuses at Radio Shack where
    3X as expensive as Wal-Mart but neither place had the fuse.

    Are the 32V fuses fit in a 250V fuse holder? I bet those are the knife
    type.
     
  4. w_tom

    w_tom Guest

    Go to the parts drawers. Parts there sell for typically 5
    and ten times. These are full retail prices. Walmart
    discounts.

    Other well stocked sources for that fuse are Home Depot and
    Lowes.
     
  5. Brian

    Brian Guest

    Did you ever think of contacting the original manufacture of your product?

    I blew a fuse on my UPS. The fuse holder says the fuse is a T 5.0A fuse.
    Wal-Mart didn't have any that were the same length as the one I had. We
    couldn't even tell by the markings that Wal-Mart had on the fuses to be able
    to tell what ratings they were.

    I went to Radio Shack and they didn't have one but I did notice that they
    cost almost 3 times as much as they did at Wal-Mart.

    From the fuses I looked at Radio Shack it looks like the clear glass tube
    fuses only have two types.
    All the fuses that are slow blow are the same length but longer than the
    instant trip kind which are all the same size but shorter.

    Other than that you can put a 1 amp fuse or a 5 amp fuse in the same holder.
    Right?
     
  6. Kilowatt

    Kilowatt Guest

    Of course. I would like to try to find it locally first though. Thanks
    I know it is a UPS but it is not a very important UPS. :)
     
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