The versatility of Flaming River's FR1052 Disconnect Switch allows for multiple installation options based upon user need and vehicle application.Options include positive or negative electrical disconnection, positive or negative switching, continuous operator controlled remote, and passive disconnect via vehicle's ignition off. The addition of the FR1053 Time Delay Relay makes the switch suitable for vehicles requiring a Selective Catalytic Reduction cleaning cycle or other custom features.12 Volt Electronic Battery Disconnect Switch. 24V system available upon request.Passive Magnetic Solenoid Operation250 Amps Continuous / 2500 Amp SurgeIP 65 RatingSealed Waterproof Design - Can withstand the most severe operating conditionsIdeal Protection For:Construction, & Farm Equipment / Mining & Off-Highway VehiclesHeavy-Duty TrucksAutomotive/RacingMarineMomentary Push Button Switches sold separately