Blue Sea "M" Battery Single Circuit ON/OFF Switch w/ Locking KeyThis Blue Sea "M" Battery Single Circuit ON/OFF Switch w/ Locking Key features a one-piece terminal stud design that never loosens over time. It offers breakout tabs that allow wire access in any direction and has an isolating cover that protects rear contacts. With one-piece stainless flange nuts, this switch ensures safe and secure connections. The tin-plated copper studs allow for maximum conductivity and corrosion resistance.Features: Isolating Cover Protects Rear Contacts; One-Piece Terminal Stud Design Never Loosens Over Time; Tin-Plated Copper Studs For Maximum Conductivity and Corrosion Resistance; Breakout Tabs Allow Wire Access In Any Direction; 7/8" (22 mm) Stud Length Accepts Multiple Cable Terminals; Studs Accept 3/8" (M10) Ring Terminals; One-Piece Stainless Flange Nuts Ensure Safe and Secure Connections; 300 Amps Continuous Rating For Outboards and Small Gasoline Or Diesel Engines; Specifications: Continuous Rating: 300A; Weight: 0.65 lb (0.29 kg); Color: Red; Intermittent Rating: 500A; Cranking Rating 30 Seconds: 900A; Maximum Voltage: 48V DC ;