Feature: 1. Can be used as a power switch for RVs, yachts, and construction machinery, copper‑plated silver inn. 2. 4 position selector, switches the isolated battery bank to all loads or combine the battery bank to all loads. 3. Continuous rating is 350A, and the maximum voltage is 32VDC, terminal stud size is 3/8in‑16. 4. Ignition protection battery switch can be installed aboard gasoline‑powered boats. 5. Made of premium ABS and metal material, sturdy and durable, long service life. Specification: Item Type: Boat Dual Battery Isolator Switch Material: ABS+Metal Switch Type: Selector 4 Position Switch Positions: 4 Battery Combine: Yes Alternator Field Disconnect :Yes Maximum Voltage: 32V DC Terminal Stud Torque:140 in-lb (15.82 Nm) Continuous Rating: 350A Intermittent Rating: 600A (5 min) Cranking Rating: 30 sec 1200A Battery Inputs: 2 Cable Size to Meet Ratings: 4/0 AWG (120mm²) Mounting Holes: Accept 1/4in M6 Screw Stud Material: Tinned Copper Terminal Stud Size: M10 Terminal Stud Size: M12. Package List: 1 x Boat Dual Battery Isolator Switch