30 Amp DC Miniature Circuit Breaker with Box IP65 Waterproof (15A 20A 40A 50A 120A for Choice) 2P 12V 24V 400V DC Disconnect Switch and AC110-400V MCB (Suitable for Thick Wire)

Cannot beat this little kit for the money and easy to install

I have used this as a solar disconnect for a small system that produces less than 30 amps. I have used it for about 6 months and it works just fine so far.

Instructions are mainly in Chinese but the product is very well built and seems like it will be durable and water proof.I'm using them as cut off switches for my solar panels on my boat.

To start this off - I was a bit worried about whether or not the product had a proper construction internally to be considered a breaker (versus some of the ones out there that have zero circuit trip capability and are literally just a switch, even though they appear to be a breaker).Thankfully this one when disassembled appears to have the full set of components that one would expect of an equivalent name brand breaker, everything looks proper and seems to be well made.The external box that houses the breaker is roomy and seems to be well made, time will tell if it will hold up to exterior conditions - The breaker itself feels solid with a good click on each movement of the breaker itself. My only complaint on sturdiness is that when tightening the screws for larger diameter wire, the body of the breaker begins to separate - They use 4 brass rods to hold the breakers together and they seem to be very flimsy so, be careful when tightening that you don't split the breaker.

Merci