HD Battery Disconnect Switch

The HD Battery Disconnect Switch by MOROSO is a rotary panel-mount solution designed for vehicles requiring reliable power isolation and battery management. This disconnect switch serves professional technicians, off-road enthusiasts, motorsports competitors, and automotive builders who need a dependable way to cut main battery power for safety, storage, maintenance, or emergency situations. By providing instant electrical isolation, the HD Battery Disconnect Switch prevents parasitic drain, protects vehicle systems during extended downtime, and enhances safety during troubleshooting or repair work.

Built for heavy-duty applications, this rotary disconnect switch handles continuous loads up to 175 amps across a broad voltage range of 6–36V, making it versatile for standard 12V systems, dual-battery setups, and high-output electrical builds. The panel-mount design allows flush integration into custom dashboards, engine bays, or battery enclosures, while the rotary mechanism provides positive on/off control with tactile feedback. MOROSO's engineering ensures corrosion-resistant construction and reliable contact integrity under demanding conditions, from street applications to extreme off-road or marine environments where electrical reliability is non-negotiable.

This disconnect switch is ideal for race vehicles, overlanding rigs, restored classics, custom hotrods, and any installation where battery isolation adds a layer of security and system protection. Installation requires mounting in a panel or bulkhead with appropriate wiring routed through the high-amperage contacts; professional installation is recommended for systems exceeding 100 amps. The compact footprint (4 x 2.8 x 5.1 inches) and manageable weight of 0.95 lbs make it easy to fit into tight engine compartments or battery boxes without adding unnecessary bulk to the vehicle.