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

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

The Victron Cyrix-ct 12/24V-120A is a compact, fully automatic battery combiner designed for 12V and 24V systems. With intelligent voltage trend monitoring and zero voltage drop, it is ideal for automotive, marine, and light off-grid applications where efficient, reliable battery management is crucial.

This smart relay automatically connects or disconnects battery banks based on real-time voltage behavior, ensuring optimal charging performance without the complexity of manual switching.

Key Specifications

• Model – Cyrix-ct 12/24V-120A
• Type – Intelligent battery combiner / Voltage-sensitive relay
• System Voltage – 12V or 24V DC (auto-detecting)
• Continuous Current Rating – 120A
• Cranking Rating (5 seconds) – 180A
• Connect Voltage – 13 to 13.8V (12V) / 26 to 27.6V (24V) with intelligent trend detection
• Disconnect Voltage – 11 to 12.8V (12V) / 22 to 25.7V (24V) with intelligent trend detection
• Current Consumption (when closed) – 12V: 220 mA / 24V: 120 mA
• Current Consumption (when open) – <4 mA
• Start Assist Function – No
• LED Status Indicator – No
• Control Cable – Not included
• Protection Category – IP54 (splash/dust resistant)
• Weight – 0.11 kg (0.24 lbs)
• Dimensions (H x W x D) – 46 x 46 x 80 mm (1.8 x 1.8 x 3.2 in)

Features & Benefits

• Smart voltage monitoring using trend detection to reduce false switching
• Auto-detects 12V or 24V systems without manual intervention
• Zero voltage drop—replaces traditional diode isolators
• Compact and lightweight design ideal for space-limited applications
• Bidirectional voltage sensing engages relay when charge is present on either battery
• Over-temperature protection with automatic recovery after cooling
• Cost-effective solution for light to medium-duty dual battery systems