Circuit Breaker 150amp 50A-300A with Manual Reset Home Solar System Fuse Holder for Car Audio and Amps Protection 12V-48V DC Reset Fuse Inverter Replace Fuses

I've ordered this circuit breaker twice now and both times have NOT broken! I used this when I have installed subwoofers. When it reaches its rated amperage it "pops" and protects my amp. I will buy again 👍🏻

Very good

Project works as expected

A must have for car audio people, so much better than a fuse.

Works great!

So I used mine as a switch and a breaker. I put it on a 72v 3000w 45a e-bike and it never threw so I have no idea if it would when it needed to. All I knew was it was a super convenient main shutoff switch that could handel 50 amps. Its been working great up till now when it no longer has any conductivity from post to post. When you push on it just the right way and really hammer down the pins on the multimeter it jumps unpredictably from 1million ohm to 500k ohm and only a couple ohm sporadically. The only reason I noticed it is because I took it off my bike to test a different project that used a 100watt led and when I turned it on the led only half lit up (like a couple small 5v ones together) but if I skipped the breaker entirely it worked perfectly. (Went blind for a minute) again I was using it as a switch as well but still if you can only cycle it 100 times or less before it breaks do you really want it to protect your project or house and family. No, too cheap for me and I got a similar 60amp one that looked more like a torpedo and that one broke after 10 cycles. Even if you only use it for a switch if you save 10 bucks but spend 10 or whatever and it breaks in a week are you really saving money? You've been warned.

I'm not sure if device as a whole can safely handle 200A current. Terminals are small and contact surface is tiny.IDK, but if you are looking to protect the circut and prevent fire hazard - I would consider going with ANL type of fuse (preferably one accepting wire gauge you are using).

Item is rated for 300amps. Item has VERY small studs for like a #8 wire. Hooking up 2/0 cable (proper rated wire for12vdc@ 300amps) was a joke. It poped at 127amps and never could take more than 96 amps after that. Not for inverter/battery stuff.

Not sure about the quality