Author Topic: Circuit Breaker Question...  (Read 2730 times)

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Offline NyxTopic starter

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Circuit Breaker Question...
« on: May 16, 2008, 09:56:48 AM »
If I want to protect my robot (running on 24V), with a circuit breaker (say 70A cutoff), would it be OK to use a household 120VAC 60A circuit breaker, or will it not work correctly (or not have the same rating) at 24VDC?
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Offline TrickyNekro

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Re: Circuit Breaker Question...
« Reply #1 on: May 16, 2008, 11:37:13 AM »
Why don't you simply use a fuse...
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Offline NyxTopic starter

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Re: Circuit Breaker Question...
« Reply #2 on: May 16, 2008, 03:54:56 PM »
Cause fuses are not reusable. The same question would apply to fuses, by the way.
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Offline kd5kfl

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Re: Circuit Breaker Question...
« Reply #3 on: May 16, 2008, 07:08:32 PM »
I use Heinemann AC circuit breakers in DC applications. For about 20 years now. Never a problem.
A 20 amp AC breaker holds at 20 DC and trips below 25 DC, just like on 120 VAC
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Offline Admin

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Re: Circuit Breaker Question...
« Reply #4 on: May 18, 2008, 12:01:13 PM »
Fuses will take up less space and probably save you money . . . unless you blow fuses every day . . .
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