Features: 1.Main Function: The top post knife blade master switch is used for battery to isolate and secure the electrical system, eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. 2.Durable Construction: Made of premium plastic and brass materials, this battery top post disconnect switch is built to withstand rugged use and rust, durable and reliable, ensuring long lasting performance. 3.Easy to Use: Simply flip the switch to turn the power on or off, allowing for quick and effortless control of the battery connection, effective and convenient to use. 4.Versatile Application: This battery disconnect switch can be used as a replacement in various car models, RVs, ATVs, and boats, offering a reliable and effective way to protect and disconnect the battery. 5.Ideal Replacement: battery knife blade shut off switch is a perfect replacement for repairing, can directly replace the old and broken accessory, ensuring the normal operation. Specification: Item Type: Battery Disconnect Switch Material: Plastic, Brass Continuous Rating: 250A DC Intermittent Rating: 400A DC Starting Rating: 750A DC Rated Voltage: 12V-24V DC Operation: ON/OFF Function: Prevents leakage, protects power source, safely disconnects battery connection Application: Suitable for Car, RV, ATV, Boat, Truck PackageList: 1 x Battery Disconnect Switch 1 x Screw 1 x Manual