SW181 Master Battery Disconnect Switch

SW181 Master Battery Disconnect Switch

This SW181 master battery disconnect switch is a manual rotary switch that isolates the battery from the electrical system to stop power drain or enable safe maintenance. It is a universal shutoff device for vehicles and equipment using a 12V or 24V battery.

Overview

The SW181 master battery disconnect switch provides a simple and reliable way to cut all electrical power from the battery in a vehicle or machine. It is used to prevent battery discharge during storage, deter theft, and create a safe work environment during electrical repairs or maintenance. This switch is a direct-acting rotary disconnect that mounts inline with the battery cable.

Built For Performance

• Rotary knob design allows quick and easy on/off operation
• High-current contacts handle typical automotive and marine electrical loads
• Compact housing fits into tight engine bays or battery boxes
• Durable construction resists vibration and corrosion
• Simple two-terminal design for straightforward wiring

Specs At A Glance

Good To Know

Q: Does the SW181 switch come with a key or just a knob? A: This SW181 master battery disconnect switch is operated by a manual knob, not a key, so it is easily turned on or off by hand. This design is common for maintenance and storage applications.

Q: How do I wire this disconnect switch into my vehicle? A: The switch is installed by placing it in series with the battery negative or positive cable, typically on the negative side. Ensure the switch is rated for your vehicle's maximum current draw and use proper cable lugs to secure the connection.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.