Victron Cyrix-Li-Intelligent Charge Relay 24/48V-230A
230A Continuous, IP54, BMS-Controlled Charge Disconnect for 24V/48V Systems
Victron Cyrix-Li-Intelligent Load Relay 24/48V-...DESCRIPTION
Victron Cyrix-Li-Charge 24/48V-230A: Intelligent Charge Relay for LiFePO4 Battery Systems
Precision Charge Control for Victron Lithium Battery Installations
The Victron Cyrix-Li-Charge 24/48V-230A is a microprocessor-controlled intelligent charge relay designed to integrate seamlessly with Victron VE.Bus BMS and LiFePO4 lithium batteries. It provides a reliable secondary layer of protection by managing the connection of high-current chargers, preventing cell overvoltage and over temperature conditions that can compromise battery lifespan and safety.
Unlike generic contactors or solenoids, the Cyrix-Li-Charge actively monitors both the BMS control signal and system voltages, ensuring chargers are only connected when safe. This reduces the risk of lithium battery damage and improves overall system reliability in 24V and 48V off-grid, marine, and automotive applications.
How the Cyrix-Li-Charge Protects Your Investment
In a Victron lithium system, the VE.Bus BMS acts as the primary safeguard. However, not all chargers can be directly controlled by the BMS. The Cyrix-Li-Charge bridges this gap by acting as a remote-controlled switch that engages or disengages the charger based on BMS commands and voltage thresholds.
- Immediate disconnection when the BMS signals cell overvoltage or high temperature, preventing irreversible cell damage.
- Automatic reconnection with a 3-second delay once conditions normalise, minimising downtime.
- Voltage-sensing logic ensures the charger is only connected when it is actively producing charge voltage (27.4V or 54.8V), avoiding unnecessary cycling.
- Built-in transient voltage suppression protects against voltage spikes during disconnection, safeguarding sensitive electronics.
Key Features and Benefits
- High continuous current rating: 230A at 24V, 80A breaking capacity at 48V, suitable for large charger banks and inverter/chargers.
- Low power consumption: Draws less than 4mA when open, preserving battery charge during storage.
- IP54 protection: Resistant to dust and water splashes, ideal for engine rooms and exposed installations.
- LED status indicator: Provides clear visual feedback on relay state (engaged, disengaged, connecting, alarm).
- Compact and lightweight: 65 x 100 x 50mm, 0.27kg, easy to mount in tight spaces.
- 3/8"-16 (Approx. M10) stud terminals accept heavy-duty lugs for secure, low-resistance connections.
Engineered for Demanding Environments
The Cyrix-Li-Charge is built to withstand the rigours of mobile and marine installations. Its sealed design (IP54) and robust terminals ensure reliable operation despite vibration, humidity, and temperature fluctuations. The included 1-metre control cable simplifies connection to the VE.Bus BMS, reducing installation time and potential wiring errors.
For system designers and installers, this relay eliminates the need for complex external control circuits, providing a plug-and-play solution that maintains the integrity of Victron's lithium ecosystem.
Applications
- Marine lithium battery systems with high-output alternators or shore power chargers.
- Off-grid solar installations using Victron inverter/chargers and MPPT controllers.
- RV and caravan power systems requiring automated charge disconnect for lithium batteries.
- Industrial backup power where battery safety and longevity are critical.
Take Control of Your Lithium Charging
Integrate the Victron Cyrix-Li-Charge 24/48V-230A into your energy system to ensure your lithium batteries are charged safely and efficiently. Add to your order today and build a more resilient power solution.
SKU: Vic-CYR020230430
SPECIFICATIONS
Specifications
| Model | Cyrix-Li-Charge 24/48V-230A |
|---|---|
| Product Code | CYR020230430 |
| Product Type | Intelligent Charge Relay |
| Continuous Current And Breaking Capacity At 24 V | 230 A |
| Breaking Capacity At 48 V | 80 A |
| LED Status Indication | Yes |
| Control Cable | Included (Length 1 m) |
| Control Input | The Cyrix engages when the control input is high (approx. Battery voltage). The Cyrix disengages when the control input is left free floating or pulled low. |
| Connect Voltage | 26.0 V / 52.0 V or more |
| Battery Terminal Voltage For Engagement | 2 V or more |
| Battery Charger Connection Delay | 3 seconds |
| Current Consumption When Open | <4 mA |
| Protection Category | IP54 |
| Weight kg (lbs) | 0.27 (0.6) |
| Dimensions H x W x D In mm (h x w x d in inches) | 65 x 100 x 50 (2.6 x 4.0 x 2.0) |
| SKU: | Vic-CYR020230430 |
| Barcode: | 8719076022282 |
| Model #: | CYR020230430 |
| MPN: | CYR020230430 |
WARRANTY
Victron Energy Limited Warranty Policy
Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.
During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like: • Reverse of battery polarity. • Inadequate connection. • Mechanical shock or deformation. • Contact with liquid or oxidation by condensation. • Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...). • Breakage or damage due to lightning. • Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening. • For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.
This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.
Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.
Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.
Life Support Policy As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.
Warranty on Repairs The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.
Transport It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.
Severability If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.
For Australia only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
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