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Author Topic: Circuit breaker  (Read 550 times)

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Offline revid

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Circuit breaker
« on: February 16, 2019, 04:37:52 PM »
can an 10 amp

 ac circuit breaker be used in a dc setup?

Offline Southside

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Re: Circuit breaker
« Reply #1 on: February 16, 2019, 06:22:48 PM »
I tried that once and could not get it do what I wanted, which was serve as a switch. No idea why it didn't work.
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Offline Whitman

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Re: Circuit breaker
« Reply #2 on: February 16, 2019, 07:23:59 PM »
If the dc voltage is at or over the rated and amps you are trying to break are  over the Max .It will arc over . From dealing with 135 vdc  it can get real nasty. Rich

Offline maple flats

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Re: Circuit breaker
« Reply #3 on: February 16, 2019, 07:28:19 PM »
No, huge difference between a DC breaker and an AC breaker. The difference is related to the fact that in DC as you break the currant it will jump a big gap, AC does not do that, because the currant flow reverses flow 60x a second in the US, 50x in some countries (60 cycle vs 50 cycle). Inside a DC breaker there is a powder that interrupts the spark as it disconnects, AC does not need that. The breaker you show is for either, it has the powder inside.
logging small time for years but just learning how,  2012 36 HP Mahindra tractor, 3point log arch, 8000# class excavator, lifts 2500# and sets logs on mill precisely where needed,  Peterson ATS upgraded to WPF mill, maple syrup a hobby that consumes my time. looking to learn blacksmithing.

Offline revid

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Re: Circuit breaker
« Reply #4 on: February 16, 2019, 08:07:09 PM »
So Maple Flatts, I can use this breaker for a 24 v system?

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