HQRP - Battery Disconnect Master Switch 12-48 V Waterproof Power Isolator Kill 275 A for Car RV Marine Boat - Red

Top post knife blade master battery disconnect switch designed to isolate power and secure your electrical system when the vehicle or boat is not in use. Rated 12 V-48 V with 250 A continuous current handling and 750 A momentary surge capacity, it supports demanding starting and accessory loads. The vertical knife blade design makes operation simple—lift the blade to cut power quickly—helping eliminate battery drain from parasitic draw and improving safety during storage or service. Built from solid brass for a heavy-duty, rust- and corrosion-resistant connection in marine and automotive environments. Compatible with marine / car / boat / RV / truck applications using top post terminals with 15-17 mm cone/taper battery posts; suitable for negative post only. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.

A rocker switch has a rocking lever type of actuator that makes or breaks the circuit contact when its position is changed. Single pole, single throw (SPST) is a two terminal switch that opens or closes one circuit.

Protect high-current DC circuits with a waterproof thermal circuit breaker designed to work as both a safety protector and a manual disconnect switch. This single-pole, one-key reset breaker is rated 50 A and supports 12-48 V DC systems, helping prevent damage from overloads and short circuits while allowing quick reset after troubleshooting. The bakelite housing is dustproof and IP67 waterproof for harsh environments, and stainless steel stud terminals provide rust-resistant, high-strength connections. Compatible with car / motor / boat / marine / RV / yacht / battery / trailer / bus / truck / solar system, ATVs / winches / electric anchors / truck tailboards / vehicle-mounted inverters. This circuit breaker series is also offered in 30 A, 60 A, and 150 A versions. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.