Feature 1Function: Used for battery isolation and protection of electrical systems, eliminating any power drain from the battery when the vehicle or boat is not in use, safely disconnecting the battery. 2Wide Application: Battery negative post only, widely used for Car, Vehicle, RV, ATV and Boat batteries, also used for electrical equipment. 3Premium Material: The top post master switch is made of heavy duty solid brass, which is rust and wearproof, durable and safe to use. 4Important Parameters: On/Off 2 gears, battery negative 15.5mm17mm, DC 12V24V system, 250A rated, intermittent rated 400A, DC 12V instantaneous 750A. 5Easy Installation: Vertical blade type battery disconnect switch, switch the knife, then power will cut, easy to install and use.Item Type: Battery disconnect switchMaterial: BrassRated Current: 250AIntermittent Rating: 400AInstantaneous Current: 750AWorking Voltage: DC12-24VInstallation Position: Battery negative poleFunction: Prevent leakage, protect power supply, disconnect battery safelyApplicable: Widely used for Car, Vehicle, RV, ATV and Boat batteries, also used for electrical equipment. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x BatteryDisconnect Switch1 x Manual