Features: 1.Function: This battery isolator switch is used for 32V DC systems to isolate and secure the electrical system, to achieve safe switching between batteries, loads, and charge sources. 2.Power Saving: The battery circuit shut off switch help eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. 3.Material: Tinned copper studs offer high electrical conductivity and rust proof, wear resistant, ignition protection, and one piece binding post design will not loosen over time. 4.Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 5.Wide Application: This black battery disconnect switch is appliacable for marine, Boat, RV, truck, modified car, with 1/2in terminal stud size, adaptable for M6 screw. Specification: Item Type: Marine Master Battery Switch_x000D_ Material: ABS, tinned copper_x000D_ _x000D_ Switch Type: Single circuit ON OFF_x000D_ Color: Grey_x000D_ Switch Positions: 2_x000D_ Battery Combine: No_x000D_ Alternator Field Disconnect: No_x000D_ Maximum Voltage: 32V DC_x000D_ Terminal Stud Torque: 220 in lb (24.86 Nm)_x000D_ Continuous Rating: 600A_x000D_ Intermittent Rating: 900A (5 min)_x000D_ Cranking Rating 10 sec: 2750A_x000D_ Cranking Rating 1 min: 1325A_x000D_ Battery Inputs: 1_x000D_ Cable Clearance For 4/0 AWG Cables: 1.10in (27.94 mm)_x000D_ Cable Quantity to Meet Ratings: Two Cables_x000D_ Cable Size to Meet Ratings: 4/0 AWG (120mm sq)_x000D_ Mounting Holes: Accept 1/4in (M6) Screw_x000D_ Terminal Stud Size: 1/2in (M12)_x000D_ _x000D_ Fitment:_x000D_ Suitable for marine, Boat, RV, truck, modified car