ITEM NAME:300A Battery Disconnect Cut Off Kill Switch for Car Boat Marine Power Isolator Product Description Description: 300 Amp Battery Switch Rotary Isolator Power Disconnect Cut Off Kill Switch for Car Boat Marine Van Truck RV ATV Caravan Specification: Color: Red+Black Screw diameter: 6mm Rated current and voltage: 300A 60V DC Contact resistance: 50M Insulation resistance: 100M Dielectric strength: 1500VAC / 1min Application: for cars, motor homes, ships, yachts, ATVs, winches Note: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X Battery Cut Off Switch.Included: 1 X Battery Cut Off Switch. Insulation resistance: 100M. Dielectric strength: 1500VAC / 1min. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.