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Author Topic: Domestic MCBs  (Read 1370 times)

john44

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Domestic MCBs
« on: November 26, 2010, 03:39:12 PM »

Has anyone used 240v MCBs on brushless motor control circuits?
I have a 40 amp brushless motor. Running on 12v what MCB,would be required?
or would blade fuses be a better option?

john44
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gingyer

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Re: Domestic MCBs
« Reply #1 on: November 26, 2010, 04:29:55 PM »

a 40Amp MCB Type D mcb
would work
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john44

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Re: Domestic MCBs
« Reply #2 on: November 26, 2010, 07:14:40 PM »

Thanks for that gingyer, will give it a try.

john44
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6705russell

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Re: Domestic MCBs
« Reply #3 on: November 26, 2010, 07:49:08 PM »

Hi John

A typical mcb would not work as the tripping/ curve characteristics are designed for a voltage of 180-250volts.

The best bet would be a 40amp blade fuse...

Russ
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6705russell

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Re: Domestic MCBs
« Reply #4 on: November 26, 2010, 08:24:39 PM »

John,
 
In addition to my last post you could also fit a marine circuit breaker, these are rated at 12 volt....

Thanks

Russ
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john44

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Re: Domestic MCBs
« Reply #5 on: November 26, 2010, 10:12:55 PM »

Hi Russ
 thanks for the info. I think a blade fuse is what I shall opt for.

cheers

John
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