Fuse blown indicaor

Discussion in 'General Electronics Chat' started by SaravanaA, Jan 7, 2016.

  1. SaravanaA

    Thread Starter New Member

    Dec 30, 2015
    15
    0
    Hi
    how to design 230v fuse blown indicator circuit ?????
    please give proper circuit diagram
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,526
    2,369
    Neon lamp!
    You can buy the fuse carriers complete with neon installed.
    Max.
     
  3. SaravanaA

    Thread Starter New Member

    Dec 30, 2015
    15
    0
    power source is generator .....in automotive purpose
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,003
    3,232
    I'm confused. :confused:
    You said it was a 230V circuit.
     
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  5. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,026
    3,790
    The light goes out when the fuse blows

    image.jpg
     
    cmartinez, #12 and absf like this.
  6. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,526
    2,369
    As per posted in #2, If a neon is placed across the fuse it lights when the fuse is blown, I use this style of fuse holder in present panel building.
    Made by BussFuse.
    Max.
     
    Last edited: Jan 8, 2016
  7. #12

    Expert

    Nov 30, 2010
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    I've done more complicated circuits with a red/green LED, but it was just a design experiment, not an elegant method for a 230 VAC line. A UL approved neon indicator is way simpler and safer than what I did as a curiosity project.
     
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  8. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,783
    945
    Indication of a blown fuse at my house always included quiet and darkness. A flashlight and replacement fuse soon brightened the situation.
    What kind of 240 volt equipment are you powering that doesn't indicate it has no power and needs a secondary indicator to show it is not working?
     
  9. #12

    Expert

    Nov 30, 2010
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    Meh. Sometimes an idiot light is convenient. I designed 5 idiot lights in my air conditioner so it tells me whether it has a drain problem, a fan motor problem (two motors), or a Freon problem (High pressure safety-out or Low pressure safety-out).
     
  10. Dodgydave

    Distinguished Member

    Jun 22, 2012
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