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Disconnect Boxes and Breakers => E Panel's, Disconnect Boxes and Breakers => Topic started by: harryn on March 22, 2024, 12:55:46 AM

Title: MNDC-GFP80 as a solar panel disconnect
Post by: harryn on March 22, 2024, 12:55:46 AM
Hi, I am just double checking the suitability of this breaker in an application.

- Solar array max Voc ~ 100 volts

- Solar array current Imax ~ 30 amps

- Feeding a Victron solar charge controller

- Off grid cabin

The goal is a simple double pole breaker to cut off both poles of the solar array.


Is there any reason why this would not be used ?

Thank you,

Harry



Title: Re: MNDC-GFP80 as a solar panel disconnect
Post by: boB on March 22, 2024, 01:14:11 AM
Yes, you can do that.

Double pole breakers or solar gfi are used all the time on un-grounded PV systems.

I think that MidNite possibly has some dual-ganged or individual DC breakers you can use .

https://www.midnitesolar.com/products.php?menuItem=products&productCat_ID=16

If the breaker(s) is polarized, make sure to connect the positive breaker post to the plus PV side and reverse for the negative PV end.

boB