These are great tools when troubleshooting blown fuses in arcades and pinballs. Instead of continuously blowing fuses (and wasting money) the circuit will simply trip and can continue trouble shooting with a simple click of the button. You can solder a blown fuse on the ends or just connect with alligator clips.

Each set comes with one circuit breaker in the following sizes: 3A, 5A, 7A, 10A, 15A, and 20A