[PURPOSR]By cutting off the battery with a master battery disconnect switch removes all parasitic loads and small leakage currents, Works Great As a Power Disconnect for RV's When Not in Use. [PREMIUM QUALITY]Made of robust aluminum alloy heavy duty housing, strong weather resistance and long service lifespan. Protects against parasitic battery drain. [EASY TO INSTALL]This battery isolator switch with face plate is easy to install. The panel faceplate is clearly labeled with off and on positions. And they also included 3 or 8inch brass studs with nuts and locking washers to that the switch is snugly secured to your power panel. [COMPATIBLE]This high current battery disconnect switch is used for DC 12 - 24 V systems to isolate and secure the electrical system, rated to 300A Continuous or 1000A Intermittent.This makes sure that the item not fail even when the system experiences an electrical surge. [WIDE APPLICATION]Widely used for ATVs, Trailers, UTVs, Cars, Marine Outboard, Off-road, RVs, Trucks, Heavy Vehicles, and electrical equipment's switch. Note: Slight differences in the product does not affect the use Colour:Photo Color Material:Metals Package Contents: 1 set x Disconnect Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.