Victron Cyrix-Li-Load Intelligent Load Relay 12/24V-230A (CYR010230450)

Warranty Option: Standard 5 Years Warranty
Sale price$285.00


The Cyrix Battery Combiner is a microprocessor controlled heavy duty relay that automatically connects batteries in parallel when one of them has reached a pre-set voltage (indicating that the battery is being charged), and disconnects when the voltage decreases below float level (indicating that one or more batteries are being discharged). Cyrix Battery Combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased.


The LiFePO4 battery: preventing cell under voltage, overvoltage and over temperature

The first line of protection is cell balancing. All Victron LiFePO4 batteries have integrated cell balancing.

The second line of protection consists of:

- shut down of the load in case of imminent cell under voltage, and

- shut down or reduction of the charging current in case of imminent cell over voltage, high temperature (>50°C) or low temperature (<0°C).

The VE.Bus BMS is the core of the second protection line.

However, not all loads or chargers can be controlled directly by the VE.Bus BMS.

In order to shut down such loads or chargers several VE.Bus BMS controllable Cyrix switches are available.


The Cyrix-Li-load will disengage when its control input becomes free floating.

If the battery voltage recovers after disconnection (which will happen when no other loads are connected to the battery), the output of the BMS will become high and the Cyrix will reengage after 30 seconds. After 3 attempts to reengage, the Cyrix will remain disengaged until battery voltage has increased to more than 13 V (resp. 26 V or 52 V)

during at least 30 seconds (which is a sign that the battery is being recharged).

Alternatively, a BatteryProtect can be used (advantage: very low power consumption).

LED status indication

LED on: engaged        LED 10 s flash: disengaged

LED 2 s flash: connecting   LED 2 s blink: disconnecting

LED 0,25 s blink: alarm (over temperature; voltage > 16 V; both batteries < 10 V; one battery < 2 V)

(multiply by two for 24 V)


SKU CYR010230450

Brand Victron Energy

Shipping Weight 0.2700kg

Shipping Width 0.100m

Shipping Height 0.065m

Shipping Length 0.050m


Victron Energy warrants its products to be free from defects in workmanship and materials for a period of: Batteries: 2 year limited warranty Li-ion batteries: 3 year limited warranty All other products: 5 -year limited warranty.


The option of a 10-year limited warranty can only be applied during the actual purchase of the product.

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