Heavy Duty 300 Amp Circuit Breaker With Manual Reset For Automotive Boat ATV Vehicles And Car Audio, Waterproof IP67, 12V-48V DC, 3/8 Inch Studs, Switchable Hi-Amp, Extended Surface Mount
✔️ 300A, Type III, manual reset, 12-48V DC, IP67, 3/8 inch (9.525 mm) studs
This heavy-duty circuit breaker protects DC circuits in automotive, marine, and DC power systems. It features a Type III manual reset, IP67 waterproof housing, extended surface mount for easy installation on boats, RVs, trucks, ATVs, and car audio setups.
✅ Interrupt capacity: 2,500A @14Vdc; 1,500A @48Vdc
✅ IP67 waterproof housing for harsh environments
✅ 3/8-16 threaded studs, extended surface mount, protective insulator
✅ Type III manual reset with switch button
✅ Operating temp: -32°C to 82°C
✅ Meets SAE J553, J1248, J1625, J1171, UL1500 ignition protected
💡 What is a heavy-duty circuit breaker used for in automotive and marine systems?
A handy protection device for DC circuits that trips to prevent wiring damage and fires, and can be reset after issues are cleared.
- Protects wiring in boats, cars, trailers, RVs, ATVs, and DC audio systems
- IP67-rated waterproof housing stands up to moisture and dirt
- Operates in 12-48V DC power environments common to marine and automotive setups
- Manual reset + switch provides quick recovery after fault