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Question about fuses

Discussion in 'General Electronics Discussion' started by kevodfx, Apr 30, 2014.

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  1. kevodfx

    kevodfx

    2
    0
    Apr 30, 2014
    Hi all

    I recently pulled a fuse from a Pioneer AMP. It is an SOC CES6 125V/10A fuse. I am familiar with cylindrical/barrel type fuses, but this one seems to be made of a hard gray plastic or ceramic instead of the typical glass housing I am used to. When I replace this fuse, do I have to get one of these or can I use a typical fuse with the standard glass housing?

    Thank you for your help!
     
  2. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

    8,393
    1,271
    Nov 28, 2011
    I Googled those markings and discovered that the fuse is made by http://www.socfuse.com and the data sheet is at http://www.socfuse.com/products/pdf/P90_E.pdf

    The CES is a 0.25x1.25" (3AB/3AG) ceramic cartridge fuse, described as "inrush withstanding", which I guess is similar to, or the same as, slow blow. It's also constructed like an HRC (High Rupturing Capacity) fuse (see http://en.wikipedia.org/wiki/Fuse_(electrical)#Breaking_capacity) and is specified with a breaking current of 10,000 amps!

    You should only replace it with a fuse with those characteristics - inrush withstanding, and high rupturing capacity.

    The closest I can find on the net is the Littelfuse 358 which has a breaking current of 1500 amps. It's available from Mouser: http://nz.mouser.com/ProductDetail/...=sGAEpiMZZMtxU2g/1juGqZOsOv/Z5rddkuaQmLm4MLY=

    You haven't put your location on your profile so I don't know which supplier to recommend. Mouser ships worldwide but freight outside America can be pretty expensive.

    When you order a replacement, get several. Most likely there is a fault that caused the original fuse to blow, and it will probably do the same to the new one.
     
    kevodfx likes this.
  3. kevodfx

    kevodfx

    2
    0
    Apr 30, 2014
    Awesome response. Thank you very much! I am in the US so it should not be an issue to ship. I was hoping this was something I could pickup at my local hardware store. Alas for simple endeavors...
     
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