30A 40A 50A 60A 70A 80A 100A 120A 150A 200A 250A 300A AMP Circuit Breaker Fuse Reset 12-48V DC Car Boat Auto Waterproof Product size: 7.4 * 4.8 * 4.5CM Product material: plastic + metal Package Checklist: 1 x Circuit Breaker Product packaging: OPP Packing size: 10 * 5 * 5CM High Ampere thermal trip circuit breaker with manual reset switch, suitable for various electrical systems. Ideal for use in harsh environments such as racing cars to provide protection against current overload or short circuits. Protective rubber cap helps prevent accidental short circuits. Commonly used in truck, bus, RV, and marine applications; also suitable for battery and audio systems. Switchable surface mount circuit breakers are often used in auxiliary and accessory circuits for truck, bus, camper, and marine systems. Sealed waterproof design for engine compartment and bilge areas. Manual trip switch allows quick circuit disconnection in emergencies. Connecting bolt size - M6 x 2 nut with integral locking ring to resist vibration loosening. Specifications: Circuit rating: 30A, 40A, 50A, 60A, 70A, 80A, 90A, 100A, 120A, 140A, 150A, 200A, 250A, 300A (optional) Voltage rating: 12-48 V Interrupt rating: 3000A @ 30 V Operating temperature: -32°C to 82°C Storage temperature: -34°C to 149°C Number of poles: 2 Weather rating: IP67 Certification: SAE J1627, J1171 / UL1500 Color: Black Case material: Thermoplastic, UL Rated 94V-0 Mounting hole (stud) size: 6mm / 1/4 inch Dimensions: 74 x 49 x 44mm / 2.91" x 1.92" x 1.73" How to use: Working method: 1. Open circuit protection: When the current reaches the trip threshold, the handle automatically pops up to disconnect power. In case of a fault, press the handle back down to restore connection after resolving the issue. 2. Manual power off: To disconnect the circuit during maintenance, press the red button on the breaker. The handle will pop up to cut power. To reconnect, press the handle back to its original position. Package Included: 1 x Circuit Breaker