300 Amp Circuit Breaker with Manual Reset, Waterproof DC 12V-48V Breaker for Heavy-Duty Winch, Inverter, Truck, Boat, 300A 12V Circuit Breaker Battery Disconnect Switch

Built for massive power loads—inverters, winches, and marine mains. Industrial-strength protection with corrosion-resistant design. Reinforced terminals handle thick cables for minimal voltage drop. High-visibility reset lever doubles as emergency kill switch. Replaces expensive fuses. Rugged, reusable, and ready for the most extreme applications.

• [Extreme Load Handling]: Built for the most demanding applications, this 300 amp circuit breaker is a powerhouse dc breaker. It provides industrial-strength dc circuit breaker protection for massive power draws
• [Industrial Marine Grade]: Our most robust marine circuit breaker. Engineered to survive extreme conditions, this 12v breaker is the standard for yacht main power and heavy-duty marine electronics
• [Maximum Compatibility]: Ideal for power inverters and heavy recovery winches. This 12 volt circuit breaker acts as a heavy-duty 12v circuit breaker, replacing large, expensive fuses
• ​Bullet 4 [Secure High-Amp Mount]: Features reinforced terminals for thick gauge battery cables. This circuit breaker ensures minimal voltage drop and maximum safety for extreme automotive and solar power systems
• [Ultimate Kill Switch]: The high-visibility reset lever serves as an emergency shut-off. This 300A dc breaker is a cost-effective, reusable safety device for any high-current circuit breaker requirement