Not easy to review
It's hard to review something that's designed to work only if something else fails :-) Since none of my panels have failed the breakers stand by, and in that event I only hope they work. I have two of the 15A breakers installed on 150 watt panels, so far no issues at all.
They fit, mount and lock onto the DIN rail better than other rail mounted appliances I have owned and used.
A tripped breaker is safer and easier to handle up on a roof or high wall installation than fuses. Yes they're a bit more expensive but IMO they're worth it. Spare fuses? not needed at all.
Verified purchase: YesCondition: New