Disconnect Switch - Battery & Alternator

The Moroso Disconnect Switch – Battery & Alternator (MOR74108) is a heavy-duty rotary panel-mount disconnect designed for vehicles requiring reliable power isolation during storage, maintenance, or emergency shutdown. This rotary switch serves as a critical safety component in performance, racing, and automotive restoration applications where battery disconnect capability protects against parasitic drain and electrical fires. Whether you're prepping a show vehicle, securing a stored classic car, or upgrading a race platform, this disconnect switch provides straightforward, fail-safe power management.

Built to handle continuous loads up to 125 amps, the Moroso disconnect switch accommodates both battery and alternator circuits across a 6–36V operating range, making it suitable for standard 12V and 24V systems as well as higher-voltage applications. The rotary design engages a positive mechanical action, eliminating accidental disconnection and ensuring stable contact under vibration and load cycling. Four 3/8–24 inch terminals provide robust, corrosion-resistant connection points sized for heavy automotive cabling, while the compact 3.9 x 2.6 x 5.1 inch footprint fits cleanly into dashboard panels or engine compartments without demanding significant space.

Professional mechanics, vehicle restorers, and racing enthusiasts rely on this disconnect switch to manage multiple high-amperage circuits with confidence. Installation involves standard panel mounting with four terminal lugs accepting 3/8–24 studs—a straightforward retrofit for engine bay or interior dash mounting. The 1.2 lb switch resists weathering and vibration, making it ideal for both street and off-road vehicles where electrical system redundancy and safety shutdown capability are non-negotiable.