E9 40 Amp Circuit Breaker with Manual Reset | 12V - 72V DC IP67 Waterproof Protection Switchable 40A

We use these T-Tocas high amp DC circuit breakers at my college for high amp lithium battery cable protection and as systems disconnects for out 12 volt DC Lithium battery arrays. They are far more durable than anything else on the market, and we have been teaching DC high amp 12 volt systems for 20 years. The Amp Capacity handles the high amp DC circuits we design and build for many years of very heavy usage. There are two stud orientations that allow excellent fit in all situations. Safety and quality and reliability are mandatory for 12 volt high amp systems, and only T-Tocas properly and consistently provides all this for the value you pay.

I absolutely love these circuit breakers! They work and are convenient as as get out for car audio installs.

Excellent CB, very easy to install and use as a switch with the easy reset button. Works as advertised and seem very well constructed.

It does the job. I bought this to replace my years old breaker. The design is similar. It works just fine. It would be nice if it came with more electrical isolation proofing but I'm sure that would make it more expensive and at worst less compatible. Only time will tell if it lasts

Quality product, protects and acts as a cutoff switch.

Great quality and easy to install. I added an inverter to my camper and needed a 250amp circuit breaker. This one does what I needed and seems well made. I have used this company's items before and have always been satisfied with them.

Worked very well for relocating my battery to the trunk!

The image I provided is to compare 300a breakers. Both were purchased on Amazon last year. The red one was my first purchase and kept tripping at 150a by the time I had it installed and noticed I was past the return window. This yellow one is so much better quality in every single way! And it was only a few dollars more! Well worth the few extra bucks