Review on BULVACK 300 Amp Circuit Breaker with Manual Reset | Car Marine Trolling Motors Boat ATV Power Protection Fuse | Audio System 12V-48V DC (300A) by Brent Porter

Need better post insulators. Special care should be taken when installing on top of batteries in a metal battery box. After a few weeks, voltage fluctuations occur and the inverter shuts down with an undervoltage alarm. I was able to run a TV, fridge, microwave and small vacuum cleaner prior to installation which meant I wasn't even close to maxing out the inverter without issues. After installation, I can't even start the vacuum cleaner without turning off the inverter. That's a few days outside of the return window, of course.