Characteristic: High amp thermal trip breaker with manual reset switch, Suitable for other electrical systems. Ideal for use in harsh environments such as racing cars to provide protection against current overload or short circuits. The protective rubber cap prevents unnecessary short circuits. Commonly used in truck, bus, RV, and boat applications; It is also used for the cost of battery and audio systems. Switchable surface mount circuit breakers are commonly found in Auxiliary circuits and accessories for truck, bus, caravan and marine systems. Sealed waterproof unit for engine compartment and bilge areas. The trip switch manual can quickly disconnect the circuit in an emergency. Connecting bolt size-M6 x 2 nuts with integral lock ring to prevent Loosening due to vibration. Specs: Circuit Rating: 30A, 40A, 50A, 60A, 70A, 80A, 90A, 100, 120A, 140A, 150A, 200A, 250A, 300A (optional) Rated voltage: 12-48V Interrupting Rating: At 30V Operating temperature: -32C to 82C Storage temperature: -34C-149C Number of poles: 2 Weather Rating: IP67 Certificate: SAE J1171 J1627/UL1500 Colour: Black The cover is made of thermoplastic, UL Classified 94V0 Mounting Hole (Bolt) Size: 6mm / 1/4inch-28inch/inch Size: 74x49x44mm/2.91 x1.92 x1.73 Material: plastic + metal How to use: working method: 1. Open circuit protection: when the current reaches the disconnect value, The long handle automatically opens and cuts off the power. In general, the short circuit situation jumps out. After removing the fault, press the long handle back to the original. The bit can form a path. 2. Manual power off: we need to power off the circuit during modification,. Directly and press the red oval button on the fuse. At this time, the long handle automatically opens to cut off the power. Connect it as above, then press the long handle back to the original position. Package Checklist: 1x circuit breaker