Features: Overcurrent circuit breaker, using bimetal structures, when the circuit is overloaded, quickly power for protection. Rubber protective cover protect terminals from moisture, dust and accidental shorting. Black UL rate 94V0 thermoplastic body with gray cover thermoplastic. One copper post and one plated terminal. Plastic with parallel mounting bracket. For Battery chargers, auto , trucks, buses, RVs, trolling motors, etc. Specification: Material: Metal + Plastic Rated Current: 20A, 30A, 40A, 50A (Optional) Working Voltage: 12-28V DC Interrupt Rating: 2.5KA @ 12V DC Operating Temperature: - 40F - 185F (- 40c - 85c) Waterproof Rating: IP66 Size: One Size Length: 5.1cm(2in) Width: 2.1cm(0.82in) Quanti ty: 1 Pc(other accessories demo in the picture are not included ) Note:1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes(without retail package): 1 x Manual Reset Breaker