Victron Cyrix-Li-Load Intelligent Load Relay 24/48V-120A CYR020120450

CYRIX-LI-LOAD 24/48V-120A
Victron Cyrix-Li-Load Intelligent Load Relay 24/48V-120A CYR020120450

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Model No CYRIX-LI-LOAD 24/48V-120A
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Description Victron Cyrix-Li-Load Intelligent Load Relay 24/48V-120A CYR020120450
Original Brand Victron Energy CYR020120450d
Voltage 24/48V
Brand Victron Energy
Size 120A
Width 46mm
Height 46mm
Length/Breadth/Depth 80mm
Weight 110g
Weight(kg) 0.300
Brand Victron Energy
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.

Cyrix-Li-load
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).


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