Cole Hersee 75920 Master Battery Disconnect Switches are high amp capacity, IP67 sealed heavy-duty switches that provide reliable emergency power cut-off. The switches are designed to be used up to 400A with a single 4/0 cable at 12VDC or 200A in 36VDC applications, allowing users to apply the switch in various vehicles. Applications include vehicle electrical systems such as heavy trucks, off-road, construction, emergency vehicles, material handling, refuse collection, mining, agricultural or marine.