Enhanced Security 300A Battery Master Switch for Campers Trucks Boats ATV DC 12V 24V 48V Features： 1、Versatile Use: Isolate and protect your electrical system in 12 to 48VDC systems. The battery disconnect switch can be used independently or locked together with other switches. Suitable for cars, boats, RVs, campers, trailers, trucks, ATV, battery packs, and other equipment. 2、Heavy Duty and Enhanced Security: The battery master disconnect switch is sturdy and reliable with safe usage. Insulated terminals on the back cover prevent any short circuits. 3、Oxidation Resistant Screw: The battery power cut master switch is designed for maximum conductivity and oxidation resistance. Accommodates 3/8 inch (M10) terminals for secure connection. 4、Wide Voltage Range: The battery master switch disconnect isolator supports 12V to 48V voltage range to ensure compatibility with various power systems. 5、Premium Material: Copper screws and iron nuts of this battery power cut disconnect switch ensure high strength and durability. Suitable for most vehicles with a 65mm disc hole spacing and 40mm foot spacing. Specification： Item Type: Car Battery Master Disconnect Switch Material: Copper Screw, Iron Nut Rated Current: 300A Instantaneous Current: Approx. 2000A Voltage: 12-48V DC Dielectric Strength: 1500VAC/lmin Disk Hole Spacing: Approx. 65mm / 2.6in Foot Spacing: Approx. 40mm / 1.6in Height: Approx. 130mm / 5.1in Fitment: Suitable for Most Vehicles, Such as Boats, RVs, Campers, Trailers, Trucks, ATV, Battery Packs, and Other Equipment. Package List： 1 x?Car?Battery?Disconnect?Switch