Battery Disc. Switch 300amp for Alternator

The ALLSTAR PERFORMANCE Battery Disconnect Switch 300amp for Alternator (ALL 80155) is a rotary panel-mount electrical safety device engineered for high-amperage battery isolation in 12-volt systems. This 300-amp rated switch provides manual control over battery power, making it essential for vehicles undergoing maintenance, storage, or emergency situations where immediate electrical isolation is required.

The 300-amp capacity handles the sustained draw of modern alternators and electrical systems without voltage drop or switch failure under load. The alternator-specific post configuration ensures proper terminal engagement and reliable conductivity during high-current charging cycles. The rotary mechanism allows quick, positive switching action—critical when you need to cut power instantly. Its panel-mount design integrates cleanly into engine bays, shop facilities, or vehicle electrical enclosures without requiring extensive rewiring, and the compact footprint (5.45 × 2.85 × 9 inches) fits tight spaces common in engine compartments and electrical cabinets.

This disconnect switch serves restoration shops, race teams, classic car builders, and fleet maintenance operations where battery isolation prevents parasitic drain during extended downtime or protects technicians during electrical work. It's equally valuable for emergency vehicle cutoff, equipment storage, or any situation requiring a robust, manually controlled battery isolation point in a 12-volt system. The ALLSTAR PERFORMANCE brand positioning in the performance and restoration market ensures this component meets the expectations of builders who demand reliability under real-world conditions.