Review on NTE Electronics R58 10A Terminal Resistance by Josh Maher

I'm using them for protection in a solar panel project. The switches are well designed, well assembled and easy to install. NTE has a nice data sheet on their website that lists all the spatial and electrical specifications. Refer to the table on the NTE data sheet for circuit breaker trip point. In short, the spec says they will work for up to an hour when charged at 145%. At 200% load, it turns off in 30 seconds. This makes sense for the wiring of the corresponding gauge. If you need something thicker or are trying to protect components, you should look elsewhere. However, for a project where you're protecting the wiring, this should work.