Breakers in place of fuses

Discussion of aircraft electrical system design, construction, and problems.

Breakers in place of fuses

Postby GraemeSmith » Fri May 06, 2022 7:35 am

Anyone have any experience with / comments about Low Profile ATC Fuse Breakers?

Like these:

https://www.amazon.com/Gloaso-Manual-Pr ... 64-4493245

Working up to a rewire behind the panel and while looking for "breaker/switch" combinations - came across these.
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Re: Breakers in place of fuses

Postby mike.smith » Fri May 06, 2022 10:09 pm

I use these, of whichever amps I need:

https://www.newark.com/te-connectivity- ... dp/08H0787
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Re: Breakers in place of fuses

Postby GordonTurner » Sun May 08, 2022 8:45 am

Hi Mike.

Took a look at these just to see what you guys were talking about. It seems like the specs show a surprisingly imprecise behavior for overamp tripping, for example, a 300% overload will trip in between one and ten seconds. Is this common? Or is this indicative of not great quality construction?

Not meant to be a critique, these are nice looking switches, just curious.

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Re: Breakers in place of fuses

Postby mike.smith » Sun May 08, 2022 9:03 am

I've only had 1 trip in all the time I've had them. The EIFS switch tripped because of a short. So it did it's job. With all electrical systems being witchcraft and voodoo to me, that's all I know :-)
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