Feature: Made of plastic material, with good conductivity. Easy to operate by the manual reset arm,or push button reset can also be used as a kill switch. Wide range of applications : use for car audio or video system, Boat, trucks, buses, RV's, ATV Winches. For car audio and video system overlord protection and stop power surges from damaging your amps. Specification: Color: Black Material: Metal, Plastic Current Rating: 200 Amp Voltage: DC 12V- 42V Screw Thread Diameter: M6x1.0 Installation Hole Diameter: 6mm / 0.24" Size: 80x68x38mm / 3.15"x2.68"x1.5"(L*W*H) Note: They Can be mounted on circuit of vehicle mounted speaker or other. Don't need to disassemble or install insurance core while break down. You Just need switch on or off the device. Package Included:1 x Inverter Circuit Breaker