Need to find a 20a 100v DC surface mount circuit breaker.

bigbillsd · November 2018

I am not finding something like this. My solar panel manufacturer wants a 20a breaker between the panels and charge controller. I had to change my panel configuration to serially connecting them to lower the amperage to prevent tripping of my existing cheap breaker. I am finding it "difficult" to find any 20 amp breakers that support more than 48 volts DC. As this is in an RV, space is a major factor, hence the surface mount requirement.

Anyone know of a source?

Thanks, Bill

Estragon · November 2018

https://www.solar-electric.com/mnepv.html

Mount on a little piece of rail?

https://www.solar-electric.com/dinra35x7.html

mike95490 · November 2018

Midnight Solar sells switch rated DC breakers for 150V for about $20. Then you need to mount it to a flat panel with a slot and screw holes, it has bolt & nut terminals for Ring Lugs.

Photowhit · November 2018

There are small plastic boxes called 'project boxes' I would install a Midnite 20 amp surface mount breaker in one, you could add some

Midnite makes a surface mount 20 amp DC breakers, Naws web site is down (again!) here is a link to another store's;

https://www.altestore.com/store/enclosures-electrical-safety/overcurrent-devices-fuses-breakers/panel-mount-circuit-breakers/midnite-solar-20-amp-150vdc-panel-mount-breaker-p11513

Midnite Solar 20 Amp 150VDC Panel Mount Breaker

Midnite Solar 20 Amp 150VDC Panel Mount Breaker

Project box;

https://www.radioshack.com/products/radioshack-project-enclosure-5x2-5x2?variant=20332261701

You could also just use a surface mount electrical dual gang box cut and mount it to one side, and add wire reliefs to the other side.

Image: https://images-na.ssl-images-amazon.com/images/I/51PLvZ0QVPL._SL1000_.jpg

https://www.amazon.com/Leviton-42777-2WA-Surface-Mount-Backbox/dp/B003AUI374/

Need to find a 20a 100v DC surface mount circuit breaker.

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