1. ON/OFF Functionality: This 12V battery disconnect switch features ON/OFF positions with a rated current of 275A. 2. Quality Materials: The casing is made of high-quality plastic, equipped with copper studs and nuts, and the rear cover isolates terminals, enhancing durability and safety. 3. Safety Protection: This waterproof switch can safely disconnect the battery, preventing excessive power consumption when vehicles or boats are idle. 4. Integrated Connection Posts: Comes with built-in connection posts that directly fit the top negative terminals, eliminating the need for additional cables or connectors, simplifying isolation and protection operations for the power system. 5. Wide Application: Suitable for isolating and protecting circuits in 12-48V systems, extensively used in cars, boats, RVs, campers, and other electrical equipment. Product Name:ON/OFF Battery Disconnect Switch Top Post 275A Operation Mode: ON-OFF Current Rating: 275A Operating Voltage: 12V-48VDC Contact Type: Normally Open Connector Type: Screws Actuator Type: Rotary Attention:This product is specifically designed for 15.5-17mm negative battery terminals. Using it on terminals outside of this size range may cause the connection to break. Do not force the product onto terminals that exceed the specified size. Colour:Photo Color Material:copper Package Contents: 1 x 275A Top Post Battery Disconnect Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.