Battery Master Disconnect Switches
Battery master disconnect switches are essential safety devices for disconnecting battery power in automotive, marine, RV, and commercial vehicle applications to prevent theft, electrical fires, and unauthorized use. These heavy-duty switches feature continuous ratings from 100A to 400A with crank ratings up to 1250A, providing reliable circuit interruption for battery isolation during storage and maintenance. Available in rotary lever, push-pull, emergency stop, and key-operated designs with optional LED indicators and AFD (Alternator Field Disconnect) protection, these switches offer secure battery management.
- Continuous ratings from 100A to 400A @ 12VDC with intermittent ratings up to 800A and crank ratings to 1250A
- IP66/IP67-rated weatherproof construction with ignition-protected housings for marine and outdoor installations
- LED indicator models with red illumination provide clear visual confirmation of switch position and status
- AFD (Alternator Field Disconnect) technology protects alternators from damage when switching off under load
- Available in single battery disconnect and dual battery selector configurations with parallel operation capability
