Cyrix-i 12/24V-400A Intelligent Combiner

The Cyrix-i 12/24V-400A intelligent combiner is a microprocessor-controlled bi-directional voltage sensing relay designed for automatic connection and disconnection of batteries in 12V and 24V systems. It ensures efficient power management and extends battery life by preventing over-discharge.

Advantages

Automatic voltage detection for 12V or 24V systems; high continuous current rating of 400A; low power consumption in open state (<4 mA); auxiliary start assist function for emergency engine starting; IP54 protection rating when mounted vertically.

Suitable for

• Marine and RV dual battery systems
• Off-grid solar power installations
• Emergency vehicle electrical systems
• Any application requiring automatic battery combining

Key specifications

• System Voltage: 12V / 24V (Auto-detect)
• Continuous Current: 400A
• Peak Current (5 sec): 600A
• Connect Voltage (12V): 13V
• Disconnect Voltage (12V): 12.8V
• Connect Voltage (24V): 26V
• Disconnect Voltage (24V): 25.6V
• Low Disconnect (Start Assist): 11V (12V) / 22V (24V)
• Delay Connect/Disconnect: 10 seconds
• Power Consumption Open: <4 mA
• Power Consumption Closed: 300 mA
• Connection: M10 bolts
• Protection: IP54
• Operating Temperature: -40 to +60°C
• LED Indicator: Yes

Recommendations

For optimal performance, mount the combiner vertically with M10 terminals facing down to maintain IP54 rating. Ensure proper cable sizing for 400A continuous current.