Features:1. Main Material: Made of durable brass.2. Maximum current: 750A3. Rated Current: 250A.4.DC 12V-24V5. Used for GM side batteries, side battery post with 3/8" hole only.6. Suitable for car, boat, truck, vehicle, RV, ATV and etc.7. Note: Never connect the battery disconnect switches to the positive battery terminal.8. Installation: Firstly, disconnect the cable connection of the battery. Make sure the negative cable is always unplugged, followed by the positive cable. Assemble the battery breaker on the negative cable, but do not over-tighten it. Note that the lever should always be open when the negative cable is connected and make sure the connection is good. Package Included:Side Battery Disconnect Switch *1