12V-110V DC Miniature Circuit Breaker, 10 Amp 2 Pole Battery Breaker Protector for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch B10

Quality circuit breaker. Purchased several for my solar projects. The circuit breakers are very good for a 12 V system that utilizes 20 A. I have my solar panel wires attached to the circuit breaker. Works well with Just a on and off switch. Great value. No issues noted.

Pretty simple device that feels well made. Seems to work as claimed though I didn’t test anywhere near load capacity. I’m using this as a temporary on-off switch between a small battery bank and my solar MPPT charge controller for a hobby solar project. Includes mounting hardware, though the aluminum rail is pretty flimsy with sharp corners. This will hold heavy gauge wire, but I’m only using 12 AWG due to low amps.

Easy to install and use. Works as it should. Will be buying more. We installed it on diy solar generator.

These are nice breakers for a solar system.

I have seen some video tear-downs of inexpensive imported circuit breakers. Some, but not all, had builds that ran from inadequate (too light duty) to no working parts inside at all. Since I am mostly using these as a convenient means to disconnect sets of solar panels (as a switch) I am not too concerned about the circuit fault interrupting capability. I have fuses upstream to do that. Once I get the system operating at full capacity I will do a thermal scan to make sure the normal current carrying capacity is adequate. For what these cost, if they ever interrupted a high current fault, I would replace them with a new one, rather than hope, and re-close the circuit. Some would say to do that no matter where the circuit breaker was made. I have not seen any agency approvals on these breakers. That will be a problem if you need a code intensive inspection, to get your system approved.

Nice order again...

My panels produce max 30A 38V so I use this as a break and protection device with a surge protector, I have used it for more than 6 months now, no problems. I think that I got a good device, and this din devices are much better than those other devices for this purpose. I hope to use only din rail devices for all my electrical applications instead of the other incompatible breakers and so forth

Appears to work as it should. I have an overloaded it so I don't know if it trips. But it allows power to go through it. And power shuts off when you shut it off.