The battery Master switch, also known as the battery circuit breaker, is a device used to disconnect the battery of a vehicle or equipment from it's electrical system. It's primary function is to interrupt the flow of electrical current, which can be useful for various purposes:

• Safety: Prevents short circuits and potential fires, particularly during maintenance or repairs.
• Energy Efficiency: Reduces unnecessary battery drain when the vehicle or equipment is not in use.
• Maintenance: Facilitates electrical repairs by eliminating the risk of electric shock or damage to components.
• Theft Deterrence: Acts as an additional security measure by cutting off the power supply, thereby making it more difficult to steal the vehicle.

By disconnecting the battery, the battery main switch helps protect both the vehicle and the battery, extending its lifespan and ensuring safety.

Marilia is a supplier of Battery Master Switches for the main automakers around the World.