Max. withstanding current: 12V 500A Waterproof cover can better protect key hole Rust and corrosion resistant, Solid brass nuts and washers Easy To Install & Simple To Use, 2 Keys Widely used in automotive electronics, electrical products and all kinds of car and boat products. Name: Battery Isolator Type: I Voltage: 12V Rated Current: 200A Max Current: 500A for 5 seconds Round disk diameter: 2.36 inch (60mm) Feet Spacing: 1.35 inch (34.5mm) Height: 2.99 inch (76mm) (no key) Overall height: 4.25 inch (108mm) (with key) Color: black+red Material: Metal + Plastic Package included: 1 x battery switch 2 x Key 1 x Waterproof cover Only the above package content, other products are not included. Note: Light 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.