1、Circuit breaker stops power surges from damaging your amps 2、Unique red push button reset can also be used as a kill switch 3、Easy to install. Mount on panel or firewall 4、Water resistant housing. Splash and dust proof 5、For car RV marine boat truck audio/video system overload protection Features: Circuit breaker stops power surges from damaging your amps. Unique red push button reset can also be used as a kill switch. Easy to install. Mount on panel or firewall. Water resistant housing. Splash and dust proof. For car RV marine boat truck audio/video system overload protection. Specifications: Material: Metal and plastic Main Color: Black Ampere Range: 50A 100A 150A 200A 250A (Optional) Rated Voltage: 48V DC Maximum Interrupt Capacity: 3000A @ 48 Vdc Operating Temperature: -32°C to 82 °C(-25°F to 180 °F) Storage Temperature: -34°C to 149 °C (-30°F to 300 °F) Stud Size: 1/4"-28 Test Standard: Meet S.A.E. J1625, J1171, UL1500 (Ignition Protected) Weight: 108~151g Quantity: 1pc Fit For: Car RV Marine Boat Truck, etc. Package included: 1 x Circuit Breaker Note: Easy to install, but professional installation is highly recommended.