Purchased to replace the stock 40am circuit breaker on my 2016 Victory Magnum. This is a preventive measure that I do every spring. I also used the Sea Dog 420840-1 Resettable Circuit Breaker Cover to protect the elements.
I have used 30 and 40 amps in my tractor wiring. Works perfectly. I wish they came with rubber pole caps or a plastic cap. Although the tester has open terminals, I feel like adding more elements under the hood doesn't make the world a safer place.
Installed a Prodigy P3 brake controller in my '97 Toyota 4Runner and needed a built in fuse that was easy to reset. This fuse was the ticket and was easy to install along my car's firewall. Will definitely buy Bussmann fuses again.