The Blue Sea Systems M Series Mini On-Off Battery Switch switches a single battery to a single load group. Features: Ignition protected - safe for installation aboard gasoline powered boats Case design allows surface, front panel, or rear panel mounting Isolating cover with snap-on sections protects rear contacts Specifications: Switch Type Single Circuit ON-OFF Colour Red Switch Positions 2 Battery Combine No Alternator Field Disconnect No Maximum Voltage 48V DC Stud Size 3/8" Terminal Stud Torque 120 in-lb (13.56 Nm) Continuous Rating 300A Intermittent Rating 500A (5 min) Cranking Rating 30 sec 900A Battery Inputs 1 Cable Clearance For 4/0 AWG Cables 1.12in (28.45 mm) Cable Size to Meet Ratings 4/0 AWG (120mm²) Mounting Holes Accept #10 Screw Stud Material Tinned Copper Stud Torque 120 in-lb (13.56 Nm) Terminal Stud Size 3/8" - 16 (M10)