VanXcel Automatic Relay 140A

⚙️ VanXcel Automatic Relay – 140A

High-current smart relay for split charging and power management in campervans

The VanXcel 140A Automatic Relay is a heavy-duty, intelligent relay designed to handle high current loads in campervans, 4x4 overland rigs, and off-grid setups. This smart relay automatically connects or disconnects your starter battery and leisure battery based on voltage levels — making it ideal for split charging, dual battery systems, and power isolation without manual switches or complex wiring.

Built to manage up to 140 amps of continuous current, this relay offers peace of mind and full automation in your 12V DC power system.

📦 What’s Included

• 1x 140A automatic voltage-sensing relay
• Integrated mounting tabs
  
• Connection bolts for large gauge cables

✅ Key Features

• Automatic voltage sensing – no ignition signal required
• 140A continuous current rating – suitable for large battery banks
• Ideal for split charge setups – connects batteries only when engine is running
• Protects both starter and auxiliary batteries from over-discharge
• Compact design, easy to mount in tight spaces

🛠️ Use Cases

• Split charge relay between starter and leisure battery
• Combine solar and alternator charging safely
• Isolate LiFePO4 or AGM batteries when not in use
• Ideal for DC-DC charging systems or inverter bypass setups
• Campervans, expedition trucks, off-grid trailers, boats

⚙️ Technical Specifications

• Current rating: 140A continuous
• Voltage: 12V DC (auto-sensing)
• Engage voltage: ~13.3V
• Disconnect voltage: ~12.8V
• Terminal type: M8 studs (for large gauge cables)
• Water resistance: Splash-proof housing
• Mounting: Flat surface with 2 screw tabs
• Operating temperature: -20°C to +85°C

🧭 Why Choose VanXcel Relays?

• Intelligent automation – no need for manual switching
• Matches perfectly with VanXcel battery terminals, fuse holders, and LiFePO4 batteries
• Reduces wiring complexity and improves system safety
• Tested in real-world overland and van builds

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