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post #1 of 4 Old 03-10-2013 Thread Starter
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DC switch panel

I have 3 switches with no power. There is a square push button next to switch that is marked "FUSE". Are these suppose to reset? I push the fuse but doesn't seem to do anything. Doesn't appear to open where you can replace a fuse. Any input on this would be appreciated.
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post #2 of 4 Old 03-15-2013
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Re: DC switch panel

They are not circuit breakers, they are fuse holders.

To replace the fuse, push and twist the cap, counter-clockwise. You will then be able to remove the cap and insert a fuse.

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post #3 of 4 Old 03-17-2013
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Re: DC switch panel

Not always push-and-twist. If they are the standard "Sea Dog" type panel, get your reading glasses and take a squint at the left side of the "FUSE" buttons. You will see a small tab in a slot on the left side of each.

Carefully, because old plastic can be brittle and break, press in the small tab with a toothpick or paper clip or small screwdriver. Now the red button will fly out and a small spring will get lost--unless they stay attached to the standard glass fuse that is inside.

Pull the red button out, with fuse attached. Replace fuse, press it all back in place, the tab will latch in again by itself, unless it was old and brittle and broke off. In which case, you have to buy a new fuse panel because they don't sell just the plastic bits.

Or for the price of postage, I'll let you have an old panel with four still good, two with tabs popped off.

Those are the older standard "automotive" type glass fuses in there. PITA to replace them that way, but I suspect using those pop-tabs instead of conventional screw-down fuse holders probably save them two bucks on the price of the panel. Or it prevents gremlins from stealing your fuses.
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post #4 of 4 Old 03-17-2013 Thread Starter
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Re: DC switch panel

Thanks Hellosailor, That is exactly what they are. But after closer examination I am going to replace the switch panels with new. After 40 years they have seen better days. The fuses won't remove from half of them and things are getting brittle. Thanks for the reply.
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