High Amperage Circuit Breaker - 50 Amp - High amperage type 3 circuit breaker. Manual reset of circuit after a short circuit condition. Button on circuit breaker can act as a master disconnect for your circuits. Typically used in primary feed circuits in trucks, RV's, and marine applications. Also used in battery chargers and welding equipment. Splash and dust proof. Stud size is 1/4-28. Available in 50 amp, 80 amp, 100 amp, 135 amp, and 150 amp ratings.