12V Battery Master Disconnect Switch With Remote 240A
Protect your vehicle’s electrical system with the Jugacool 12V Battery Master Disconnect Switch With Remote 240A—the powerful, remote-controlled kill switch designed to prevent battery drain, deter theft, and simplify maintenance across cars, trucks, RVs, campers, boats, and more.
Main Description
This 12V battery master disconnect switch delivers up to 240A of switching power while running on a low 3mA standby current. It automatically shuts off when battery voltage falls to 11.9V ±0.2V to prevent parasitic drain and prolong battery life. For safety while driving, if the voltage climbs above 13.2V, the remote control is disabled and a panel protection light illuminates to prevent accidental shutdown. Two wireless remotes let you isolate or restore power from a distance—perfect for quick security checks, parked vehicles, or maintenance without crawling under the hood.
Crafted from top-quality materials with pure copper wiring, this switch resists corrosion, delivers excellent conductivity, and stands up to harsh conditions—from -22°F to 194°F. It can handle an instantaneous current of up to 500A, ensuring reliable performance when you need it most. A handy leakage display on the panel shows low, middle, and high ranges (Low: 0.5–2A; Middle: 2–5A; High: >5A), giving you quick insight into your system’s current draw. Note the negative pole sizes (9–13mm and 15–17mm); it is not suitable for vehicles with small pile heads.
With broad compatibility for 12V systems across cars, trucks, RVs, travel trailers, motorcycles, campers, and boats, this device is a versatile solution for fleet owners and weekend warriors alike. The included two wireless remotes provide convenient, flexible control whether you’re near the vehicle or away from it.
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All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Benefits & Tips
- Protects against battery drain during long-term storage or forgotten accessory loads by automatically disconnecting at low voltage.
- Enhances security with remote-controlled isolation—stop unauthorized battery use without accessing the engine bay.
- Useful for routine maintenance: quickly cut power for safe work on electrical components or charging without removing fuses.
Product Specifications
- Brand: Jugacool
- Item Type: Car Relays
- Model Name: 12V Battery Master Disconnect Switch
- Origin: Mainland China
- Rated Voltage: 12V
- Rated Current: 240A
- Standby Current: 3mA
- Shutdown Threshold: 11.9V ±0.2V
- Automatic Shutdown Delay: 180 seconds after voltage drops below threshold
- Over-Voltage Behavior: If voltage > 13.2V, remote control is disabled and panel light illuminates
- Materials: High-quality materials, pure copper wire; corrosion-resistant
- Operating Temperature: -22°F to 194°F
- Instantaneous Current Handling: Up to 500A
- Leakage Display: Low 0.5–2A; Middle 2–5A; High >5A
- Suitable For: Most cars, trucks, RVs, travel trailers, motorcycles, campers, boats with 12V systems; engine displacement less than 4.0
- Negative Pole Size: 9–13mm and 15–17mm (not suitable for vehicles with small pile heads)
- Remote Controls Included: 2 wireless remotes
Package includes:
- 12V Battery Master Disconnect Switch with Remote
- 2 Wireless Remote Controls
Warnings / Reminders
- Not suitable for vehicles with small pile heads due to negative pole size compatibility.
- Remote control access is disabled automatically if voltage exceeds 13.2V; the panel protection light will illuminate.
- Auto shutdown will occur 180 seconds after the voltage drops below 11.9V; ensure the system is re-energized to restore power.