Breakers AC, DC & AC/DC - Solar Safety Part 2 - 12v Solar Shed

In a follow up to part one ( ) I'm looking at breakers. I talk briefly about how they work and then I take look inside an AC breaker, a AC & DC Breaker and a DC only breaker. It turns out they have some similarities as well as some differences.
Remember, please use the correctly designed breaker for your circuit. Do not use AC breakers on DC circuits (or vice versa).
The above video is only presented for interest - please complete your own research - nothing contained within comes with any guarantee.
MJLortons Circuit Breaker Video: • How Does a Circuit Bre...
Product links:
❗️These links are affiliated and I may earn a small commission if you purchase❗️
Midnite Solar Breaker (US): ebay.us/bcOL8b
Midnite Solar Breaker (UK): goo.gl/koT86A
DIN Rail: goo.gl/PshFHD
See Part One all about Fuses: • Fuses - Solar Safety P...

[@DocMicha]

Super tear down. there is another very important difference. I was told by an old fellow of a well known German relay manufacturer: Its the chemistry of the contacts. While AC contact do not have this arc so much, DC contacts have to withstand a longer duration arc, so the contacts of an AC would not last and even worse they could weld together if switching a high load, where they are supposed to separate. So never do use AC breakers for DC, otherwise they could catch fire!

[@josepeixoto3384]

Nice to see them open, i learned about that only a year ago or so;

[@willfoley25]

Great info! Safety, safety, safety. People need to understand this!

[@Kuro-Velfire]

Thanks Mr Weich, your observations helped me make my mind. Really appreciate it

[@howardsway782]

Thanks Adam, good video - keep 'em coming!

[@thewalkingtrade2678]

Thanks I was asking the same question myself.

[@michaelaquino28]

Thank you for the great explanation

[@tahraqapie4783]

clearly explained, subscribed

[@Mechone11]

You should be using a double pole dc breaker breaking the positive and negitive simutaneously as per code on solar panels

[@jorarofu]

Hello Adam! First, thank you so for your very informative videos.

[@affordablesolarguy]

wow,, I have tested my AC breakers on my solar system and they worked flawlessly. Never thought to rip them open and look for differences though. You rock. Still though, the only thing I can think of that could ark that way is lightning strike. And I don't think the magnet will save anything. ;) Like high voltage DC is much more likely to arc than any 12 volt system could ever dream of arcing.

[@DaveTheBigTomato]

Very good job.

[@dariogallego6219]

Hi there! Thank you for the video. One quick question, in a two panels system with a microinverter (plug and play), where should I install my circuit breakers, in the DC or AC side?

[@mmeyer9317]

Well Done o’l Boy! 💪

[@arcachofo]

Good video, thanks for the info.

[@its.r.r]

Thank you for a very descriptive and detailed video on the differences between the types of breakers. It was just what I needed.

[@ZerHour]

Great video ,the points on most potential still confuses many of my electrically minded friends , argument being if a charger outputs say 60 amps going to a leisure battery they say that is a lot of potential so why wire the positive on the polarity sensitive breaker to the battery if the charging current is flowing from a charger ?

[@tanishqbhaiji103]

If you read the datasheet, most AC breakers are rated for 48-60V DC nominally systems with 72V DC peak voltage.

[@oldtimeengineer26]

Thanks and yes you have labeled that point very well. Hope you got the midnite solar breaker bake together and working

[@KD0CAC]

Adam , you could use an automotive load tester to test breakers & fuses .