Turned on or off with the ignition key or a remote control, the 08094400 Series 16V 250A Remote Control Electrical Battery Disconnect Switch with 12V Coil & Positive Disconnection is ideal for heavy trucks, material handling equipment, construction vehicles, and more. Protected against dust, water splashes, and high-temperature, high-pressure spray downs to IP65, IPX4K, and IPX9K standards, the battery isolator switch handles the harsh conditions of commercial vehicle environments. This 16V 250A battery relay switch (08094700) features a 12V dc coil and positive disconnection.