Features: 1.Premium Material: Battery disconnect switch is made of premium ABS and tinned copper material, rustproof, high strength, sturdy and durable. 2.Function: Battery cut off switch isolates start and house circuits and combines both battery banks for emergency starting, with 3 position(OFF/ON/PLUS). 3.Excellent Performance: Battery switch has good electrical conductivity, IP66 waterproof, ignition protection, heavy duty, stable and reliable. 4.Simple Installation: The installation is simple, mounting holes accept 3/8in (M10) stud, not easy to loosen, convenient for using, save your efforts. 5.Wide Application: Power kill switch with 300 amp continuous rating suitable for outboard and small petrol or diesel engines, ideal for RV or boat. Specification: Item Type: Battery Disconnect Switch Material: ABS, Tinned copper Switch Positions: 3 position, OFF/ON/PLUS Maximum Voltage: 32V DC Continuous Rating: 300A Intermittent Rating: 450A (5 min) Start Rating 30 Seconds: 675A per circuit Battery Inputs: 2 Mounting Holes: Accept M10 Screw Stud Material: Tinned Copper Terminal Stud Size: 3/8in-16 (M10) Function: Isolates start and house circuits and combines both battery banks for emergency starting.(OFF/ON/PLUS) Application: Ideal for Marine or RV