Blue Sea m-Series Mini On-Off Battery Switch w/ KnobThe Blue Sea m-Series Mini On-Off Battery Switch switches a single battery to a single load group. This switch has a removable knob for security and service lockout and allows for surface mounting, and front or rear panel mounting.Blue Sea m-series battery switches provide 300 Amps continuous rating for outboards and small gasoline or diesel engines. These battery switches are built with tin-plated copper studs for maximum conductivity and corrosion resistance. The one-piece terminal stud design never loosens over time, while one-piece stainless flange nuts ensure safe and secure connections. Each m-series switch has breakout tabs that allow for wire access in any direction. Specifications: Switch Type: Single Circuit ON-OFF; Color: Black; Switch Positions: 2; Maximum Voltage: 48V DC; Terminal Stud Torque: 120 in-lb.; Continuous Rating: 300A; Intermittent Rating: 500A (5 min); Battery Inputs: 1; Cable Clearance for 4/0 AWG Cables: 1.12 in.; Cable Size to Meet Ratings: 4/0 AWG; Mounting Holes: Accepts #10 Screw; Terminal Stud Size: 3/8" - 16; Weight: 0.65 lb.; Meets all American Boat and Yacht Council (ABYC) requirements for battery switches.