ANJOSHI150Amp Circuit Breaker 30A-300A with Manual Reset Waterproof Inline Fuse Holders Inverter for Trolling Motor Auto Car Marine Boat Bike Stereo Audio System Protection

This is not a reflection of how well the prodduct works, but the item I received was extremely fragile and small pieces broke off as soon as I opened it.

This thing is awesome! I have factory breakers installed in my boat but have never seen them like this before. I had a customer come to me to get light bars and an auxiliary fuse block added to his 2019 Polaris Ranger. While the fuse block had its own fuses I wanted to add an inline fuse to the fuse block as well since the power wire would be running just above the plastic skid plate near the drive shaft (where all the factory wires run) and I knew he would be using this in the West Texas Hill Country with a ton of sharp and jagged rocks. So in case anything should happen while out in the middle of no where I wanted to fuse this main power wire close to the battery. While searching for fuses I found this breaker and immediately thought this would be a good idea to be able to fix an issue and reset out on a trail instead of having to carry spare fuses or even possibly having to order one of the fuses online and waiting several days for it to show up. These are awesome and I will definitely be purchasing these for more jobs as they come up.

The terminals are a bit small for 300A continuous.The casing is a bit brittle and sensitive for over tightening.

It worked in my application between my house batteries and a DC-DC charger for a few months. Now the 60 amp rated breaker trips at anything higher than 30 amps. Not reliable.

Served my need effectively

I bought this unit to protect my trolling motor from the unlikely instance of an over draw. I mounted this breaker under a hatch at the battery and ran 6 ga wire from there to the trolling motor 15' away to a terminal block on the transom. Initially, I was disappointed as the terminal lugs on this device are very small ( maybe 3/16" diameter?) and likely designed for 12 or 10 ga wire max. ) I used it on my 6 ga lugs anyway and managed to get a good connection. Everything seemed fine until a month later when I cycled the breaker manually to test. Once i did this, I was unable to get the trolling motor to run or even light up again despite a meter showing 13.4 V at the motor. It appeared to have voltage but not enough current to run ) I then checked the breaker and it had near .5 V drop across it when set and (most disturbingly) still allowed 6-8 Volts to pass when tripped. This device was only a 60 days old and was never wet or shorted. It just failed in a very odd way that leaves me with no confidence in it's design. I ended up taking it out and all returned to normal.

This breaker failed the first time I used it, the worst part is when it failed it fried in the closed position so it didn't provide any protection whatsoever. This breaker will not work as intended. I was lucky that I noticed my wires getting hot and unplugged everything, otherwise this would have burned down my entire rig.

Plastic housing broke when I installed a screw on it. No information provided about a torque spec, so be careful, it is easy to break.