Victron Cyrix-Li-ct 12/24V-120A combiner - CYR010120412

Protect your LiFePO4 batteries with the Victron Cyrix-Li-ct 12/24V-120A combiner - CYR010120412: prevents undervoltage, overvoltage and overtemperature of the cells.

The Victron Cyrix-Li-ct 12/24V-120A combiner - CYR01010120412 will connect in parallel a lead acid starter battery with a LiFePO4 lithium battery, protecting the lithium battery against overvoltage or overtemperature.

1. Cell Equilibrium: Optimization and Uniform Performance. The first line of defense is cell balancing, an essential feature in all Victron LiFePO4 batteries. This system ensures that all cells work in harmony, which not only optimizes battery capacity, but also prevents potential problems such as overcharging or excessive discharge.

2. Advanced Safeguards: Agile Response to Risks The second layer of protection is designed to respond effectively to critical situations:

• If there is an imminent threat of undervoltage in the switchgear, the system automatically disconnects the loads.
• In the event of overvoltage, high temperature (>50°C) or low temperature (<0°C), the system takes action by disconnecting or reducing the load current. The heart of this protection line is the VE.Bus BMS, which constantly monitors conditions to keep your cells safe.

However, it is important to note that not all chargers or loads can be directly controlled by the VE.Bus BMS. To address this limitation, Cyrix switches are presented as a solution that allows these devices to be disconnected.

Key features of the Victron Cyrix-Li-ct 12/24V-120A combiner

Cyrix-Li-ct is a crucial addition to this protection network. Similar to its Cyrix-ct counterpart, the Cyrix-Li-ct performs an essential parallel function. It connects in parallel a lead-acid starter battery and a LiFePO4 battery under the following conditions:

• High disconnection of the charger from the VE.Bus BMS.
• Detection of a voltage of 13.4 V (or 26.8 V) or higher on one of its connection terminals.

This device is programmed to disconnect immediately in the event of:

• Floating mode control output, indicating overvoltage or overtemperature of the cells.
• Battery voltage falling below the 13.2 V threshold.

The Cyrix-Li-ct also includes an LED status indicator that gives you quick, visual feedback on its operation:

• LED on: indicates that the device is activated.
• LED flashes for 10 seconds: signals that the device is deactivated.
• LED flashes for 2 seconds: shows that the device is in the process of connection.
• LED flashing for 2 seconds: indicates that the device is in the process of disconnection.
• LED flashing for 0.25 seconds: warns of an alarm that could include overtemperature conditions, voltage above 16 V, both batteries with voltages below 10 V, or one of the batteries with voltage below 2 V.

In addition, the Cyrix-Li-ct features a StartAssist function that provides an extra boost to the starter. A short press of the negative will activate the relay for 30 seconds, which can be a great help in difficult starting situations.

Safety is a priority at all times, and the Cyrix-Li-ct incorporates a transient voltage suppressor that limits voltage spikes in the event of sudden shutdown due to cell overvoltage or overtemperature.

Datasheet Victron Cyrix-Li-ct 12/24V-120A combiner - CYR010120412

View Victron Cyrix-Li-ct 12/24V-120A combiner data sheet - CYR010120412