🔌 2-Pack 12V-24V DC Reset Fuse Holder with Manual Reset for Car Audio Stereo Switches and Solar Inverter Systems - 40A Inline Circuit Breaker Reset Fuse Review

I've looked through countless versions of this and found that the amperage can be random compared to the "rating". I bought these 40 amp breakers to replace a pair of 50 amp breakers from another supplier that tripped at 20 amps. They stay cooler and don't fire at 8 p.m. The voltage drop is also a little less than the poor 50A circuit breakers (which makes sense since the heating of the bimetal due to the overcurrent flowing will trip this circuit breaker).

Bought 2 40 and 2 30 for a solar power panel I am building - liked the form factor. Put 40a on the output of my 30a AC charger and shut down within 20 seconds. Replaced it with a second one and it worked for about an hour before shutting down. Oddly, I replaced the 40 amp fuse with one of the 30 amp fuse and everything worked fine. Rereading the Revain page, it recommends increasing the fuse size by 1.25-2x the expected current - I should have read more carefully. I will replace both.

Not suitable for solar panel. It adds line resistance and heats up. Because of this, performance fluctuates and drops. I've had a set of these that I've been using for about a year and when the sun comes out and my panels are putting out 400 watts the output drops every 30 seconds and then back down to 400 watts. I blamed my charge controller. I blamed my wiring. I even vinyl my panels. Then last week one of those switches started tripping and I replaced it with a double pole circuit breaker…

I bought and installed two of these to use as disconnect and circuit breakers. One for the battery circuit and one for the solar panels. However, they are very difficult to reset if you press the button to disable them. I thought I had a bad solar regulator until I checked the voltage with a voltmeter. I found that both circuits were open when the lever was in the closed position. I'm not sure what the secret of resetting it is, but just because the hand returns to its original position doesn't