[WIDE APPLICATION] Suitable for use in RVs, travel trailers, marine vessels, boats, trucks, ATVs, UTVs, and more. [FUNCTION] This M-Series battery switch features On/Off positions and serves as a power disconnect to prevent battery drain. Safely isolate batteries when the vehicle or boat is not in use. [DESIGN] Make-before-break contact design allows switching between batteries without interrupting power. [MOUNTING] Designed for safe installation on gasoline-powered boats. Chassis allows for surface, front panel, or rear panel mounting. Isolating cover with snap-on sections protects rear contacts. [SAFETY] One-piece terminal stud design ensures a secure connection that does not loosen over time. [TERMINAL STUD TORQUE] 120 in-lb (13.56 Nm) [CABLE CLEARANCE FOR 4/0 AWG CABLES] 1.12 in (28.45 mm) [CABLE SIZE TO MEET RATINGS] 4/0 AWG (120mm) [STUD MATERIAL] Tinned copper [STUD TORQUE] 120 in-lb (13.56 Nm) [TERMINAL STUD SIZE] 3/8 inch - 16 (M10) [WATERPROOF RATING] IP66 [TYPE] Selector, 4 Position [COLOR] White + Red [MATERIAL] Plastic + Brass [PACKAGE CONTENTS] 1 x Switch, 4 x Screws Note: Only the items listed are included. Other products shown are not part of the package. Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.