Model Boat Mayhem - Forum

Technical, Techniques, Hints, and Tips => BRUSHLESS Motors and Speed Controllers => Topic started by: john44 on November 26, 2010, 03:39:12 PM

Title: Domestic MCBs
Post by: john44 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
Title: Re: Domestic MCBs
Post by: gingyer on November 26, 2010, 04:29:55 PM
a 40Amp MCB Type D mcb
would work
Title: Re: Domestic MCBs
Post by: john44 on November 26, 2010, 07:14:40 PM
Thanks for that gingyer, will give it a try.

john44
Title: Re: Domestic MCBs
Post by: 6705russell 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
Title: Re: Domestic MCBs
Post by: 6705russell 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
Title: Re: Domestic MCBs
Post by: john44 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