Features: 1.Dual Circuit Switch: Battery switch switches two isolated battery packs (not included) simultaneously without interrupting power. 2.Ignition Protection: IP66 waterproof for safe installation on gasoline powered boats; 300 amp continuous rating for outboards and small gasoline or diesel engines. 3.Tinned Copper Studs: Good conductivity, studs accept 3/8in (M10) ring terminals, 7/8in (22 mm) stud lengths accept multiple cable terminations. 4.Easy Installation: The isolation cover protects the rear contacts, and the breakout tabs allow wire access in any direction. Enclosure design allows for surface, rear panel or front panel mounting. 5.Wide Application: Widely used in cars, ships, RVs, campers, travel trailers, trucks, ATVs, UTVs, battery packs and other equipment. Specification: Item Type: Battery switch Material: ABS, nickel plated copper Battery Combination: None Alternator Field Disconnect: No Maximum Voltage: 32V DC Stud Size: 3/8in Continuous Rating: 300A Intermittent Rating: 450A (5 min) Startup Rating For 30 Seconds: 675A per circuit Battery Input: 2 Mounting Holes: Accept M10 screws Stud Material: Tinned Copper Terminal Size: 3/8in- 16 (M10) Function: Switch two isolated battery packs simultaneously Fitment: Ideal for marine or RV applications PackageList: 1 x Battery Switch 4 x Screw