1Compatible: For DC 1248V systems, isolation and protection of electrical systems, can be used alone or with other switches locked together. Commonly used in cars, vehicles, RVS and boats, as well as electrical equipment switches. 2Prevent Battery Exhaustion: If your car or electrical system is not in use for a long time, the power off switch can help you effectively cut off the main power when you are not using the device. 3Working Current: 12VDC/300Amp continuous current, 900Amp 5 seconds peak current; 24VDC/150Amp continuous current, 450Amp 5 second peak current 4Easy Installation: The copper terminals measure 3/8in(10mm) x 2, use detachable knobs and side panels, and come with four M4 x 50mm mounting studs to make installation easy. 5Cable Requirements: The minimum size of the high current cable is not less than 0AWG or the cross sectional area of the conductor is not less than 50mm . Item Type: Battery Disconnect Switch Maximum Voltage: 12-48V Continuous Rated Value: 300A Intermittent Rated Value: 1500A Starting Rated Value: 800A Mounting Hole: M5 x 4 Switch Activation: Manual (Rotary) Applicable: Car Truck Yacht Retrofit and Light Commercial Vehicle 1 x Battery Disconnect Switch 4 x Screws