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Title: 250A breaker to MNBDM wiring
Post by: Trukinbear on October 23, 2020, 05:57:36 PM

Hi guys, I've got the MNBDM mounted in my E-panel. Looking at the connection to the 250A main DC breaker, terminals on the MNBDM say + and -, but both of the wires from the breaker are yellow and appear to be connected together at the end(?). Perhaps this just a 'normally closed' situation where polarity doesn't matter but as soon as I snip the wires apart the breaker will trip, right? Or am I just confused?

Title: Re: 250A breaker to MNBDM wiring
Post by: FNG on October 26, 2020, 04:56:57 PM

The MNEDC175RT and MNDC250RT breakers have the trip coil, This coil is not polarity sensitive so the + or - from the BDM can go to yellow wires and you don't have to worry about polarity

Title: Re: 250A breaker to MNBDM wiring
Post by: Trukinbear on October 26, 2020, 05:50:28 PM

Thank you!

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Disconnect Boxes and Breakers => E Panel's, Disconnect Boxes and Breakers => Topic started by: Trukinbear on October 23, 2020, 05:57:36 PM