Victron Energy Cyrix-Li-ct 12/24V-120A Battery Combiner

The Victron Energy Cyrix-Li-ct 12/24V-120A is a microprocessor-controlled battery combiner designed for dual battery systems, especially with LiFePO4 service batteries. It automatically connects batteries when charging voltage is detected and disconnects when voltage drops, ensuring efficient power management and protection.

Advantages

This combiner offers seamless automatic operation, low power consumption, and robust protection features. Its bidirectional capability allows charging from either battery, and the BMS control input enables integration with LiFePO4 battery management systems for enhanced safety and longevity.

Suitable for

• Dual battery systems in boats, RVs, and off-grid installations
• Systems with LiFePO4 service batteries requiring BMS integration
• 12V or 24V nominal systems with auto-detect voltage

Key specifications

• Nominal System Voltage: 12V / 24V (Auto-detect)
• Continuous Current Rating: 120A
• Peak Current Rating: 180A (5 seconds)
• Power Consumption (ON): < 4 mA
• Power Consumption (OFF): < 2 mA
• Operating Temperature Range: -40 to +60°C
• Protection Rating: IP54 (when installed with terminals facing down)
• Terminal Connections: M6 bolts
• BMS Control Input: Yes
• Bidirectional Operation: Yes
• Maximum Cable Size: 50 mm² (AWG 0)
• Mounting Type: Surface Mount
• Overvoltage Protection: Yes
• Undervoltage Protection: Yes (via BMS integration)

Recommendations

For optimal performance, use with compatible LiFePO4 batteries and ensure proper installation with terminals facing down to maintain IP54 rating. Always follow manufacturer guidelines for cable sizing and torque settings.