Car Battery Disconnect Isolator Master Switch 12-24V 

Material: Zinc alloy, copper plated

Length: 8.5 cm

Width: 3.5 cm

Battery Post Fit: 15–17 mm diameter

Operating Voltage: 12V / 24V

Product Description for Car Battery Disconnect Isolator Master Switch 12-24V

The Car Battery Disconnect Isolator Master Switch 12-24V  is a practical and reliable solution for safely isolating your vehicle’s electrical system. Designed for ease of use and dependable performance, this isolator switch helps protect your battery, prevent unwanted power drain, and simplify maintenance tasks. Additionally, with its compact design and robust construction, it is suitable for a wide range of vehicles that use a 12V or 24V electrical system.

Constructed from zinc alloy with copper plating, this car accessory ensures a secure electrical connection. Futhermore it maintains durability for long-term use. The simple rotary mechanism allows you to disconnect power quickly by loosening the green knob just 2-3 turns, immediately cutting off the vehicle’s electrical supply. When power is required again, simply tighten the knob to restore full operation.

Furthermore, installation is straightforward. Once the battery terminal and clamp are clean and free of corrosion, the switch can be fitted securely in place. It is specially made to fit negative battery posts with a diameter of 15–17 mm, ensuring wide compatibility across many vehicle types. This isolator is also ideal for preventing battery drain during storage, performing safe servicing, or adding an extra layer of security.

Key Features

• Durable Construction: Made from zinc alloy with copper plating for reliable conductivity and long service life.

• Easy Power Cut-Off: Green rotary switch disconnects power in just 2–3 turns.

• Simple Installation: Fits battery posts 15–17 mm with basic tightening—no complex tools needed.

• User-Friendly Operation: Quickly restores power by tightening the knob.

• Brand New: Supplied as 1 PCS, ready for immediate use.

Technical Specifications

• Material: Zinc alloy, copper plated

• Length: 8.5 cm

• Width: 3.5 cm

• Voltage Compatibility: 12V / 24V

• Battery Post Fit: 15–17 mm diameter

Compatible With / Applications

This quick cut-off battery switch is specifically designed for vehicles using 12V or 24V electrical systems and equipped with negative battery posts measuring 15–17 mm in diameter. Furthermore, it is ideal for cars, vans, trucks, tractors, and other vehicles where battery isolation, maintenance safety, or protection from battery drain is required. In addition, it provides a reliable and efficient way to quickly disconnect power, thereby preventing accidental electrical issues. Moreover, its user-friendly design ensures simple operation, while also enhancing overall vehicle safety.

For compatibility or installation support, contact LED Lights Ireland at 01 4140841.

• All stock is delivered from our store in Ireland
• Ireland & Northern Ireland: AnPost Tracked (1-3 working days) - €3.99
• Ireland & Northern Ireland: DPD Next Day Delivery - €13.99
• Mainland UK: 2-6 working days - €15.00 Flat Rate
• Orders received before 3pm dispatched same working day
• Orders received after 3pm dispatched next working day
• Working days do not include weekends or Irish public holidays
• Shipping Rates will be calculated when you input your address

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Read more about Return & exchange