Review on Stinger SGP90501 Resettable Circuit Breaker by Jonah Koehnke

First of all the unit looks great and attaches well to 4 gauge wire on the expensive automatic switch. I bought the 80 amp version but I am giving this review for the 50 amp model as there is a major safety issue. My 80 amp version is used on a system that runs at 60 amps for about 3 hours a day. The device runs almost every day. I called tech support and they said maybe this unit is in fact the 50 amp version. I couldn't tell from the device. This is a big inconvenience for me, I need to remove it. For users who buy the 50 amp version when it is in fact the 80 amp version, this is clearly a fire hazard. So my advice is to test your switch somehow before installing it. Make sure it works with the expected current. The Stinger guys didn't worry too much about my stumbling problem. They asked if it was used for automotive purposes. It's not - it was used in a solar charging system (very expensive) that sets its $600 controller to a 60 amp current limit. So they said that this is not the problem they want to solve as it is not used in the car application. As an electrical engineer designing fuses and circuit breakers for many projects, I think this is nonsense. The 12V DC current flowing through the circuit breaker should not matter if used for solar or automotive applications. I've asked for a datasheet detailing the curves for when (how much current in what time) these switches need to be triggered - and they don't (or couldn't) provide one. So buyers beware. Check your switch first or risk a fire.