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Victron Cyrix-Li-Intelligent Charge Relay 12/24V-230A

230 A continuous, IP54, direct VE.Bus BMS control for LiFePO4 safety


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DESCRIPTION

Victron Cyrix-Li-Charge 230A: Intelligent Charge Relay for LiFePO4 Battery Systems

Precision Charge Control for Lithium Battery Protection

The Victron Cyrix-Li-Charge 12/24V-230A is a microprocessor-controlled intelligent charge relay designed to integrate seamlessly with Victron VE.Bus BMS and LiFePO4 batteries. It acts as a critical second line of defence, automatically connecting or disconnecting a battery charger based on signals from the BMS to prevent cell overvoltage and over temperature conditions. This ensures your lithium battery bank remains within safe operating limits, extending service life and maintaining system reliability in demanding mobile, marine, and off-grid applications.

Unlike generic voltage sensing relays, the Cyrix-Li-Charge responds directly to the VE.Bus BMS Charge Disconnect output, providing a coordinated protection strategy that generic relays cannot offer. This reduces the risk of cell damage from overcharging, a common failure point in lithium systems without proper BMS integration.

How It Works

The Cyrix-Li-Charge engages the charger connection with a 3-second delay when the BMS Charge Disconnect signal is high and it detects sufficient voltage on both the charger and battery terminals. It disengages immediately if the BMS signals a fault, such as cell overvoltage or over temperature, isolating the charger to prevent further stress on the cells. After a brief recovery, it attempts to reconnect automatically, with progressively longer delays if faults persist, preventing rapid cycling that could damage components.

Key Features

  • 230 A continuous rating at 12 V or 24 V for high-current charging systems
  • Direct VE.Bus BMS control for coordinated lithium battery protection
  • Immediate disengagement on cell overvoltage or over temperature signals
  • Automatic reconnection with intelligent delay logic to avoid nuisance cycling
  • Built-in transient voltage suppression protects against voltage spikes during disconnection
  • LED status indicator for at-a-glance operational and fault monitoring
  • Low current consumption (<4 mA when open) minimises parasitic drain
  • IP54 rated enclosure resists dust and water splashes for harsh environments
  • 3/8"-16 (Approx. M10) stud terminals suit heavy-duty lugs for secure, low-resistance connections

Designed for Demanding Environments

With an IP54 protection rating and robust construction, the Cyrix-Li-Charge is built to withstand the vibration, temperature swings, and moisture common in vehicle and marine installations. The compact footprint (65 x 100 x 50 mm) and integrated mounting flanges allow flexible installation in tight spaces, while the included 1-metre control cable simplifies connection to the VE.Bus BMS.

Applications

This charge relay is ideal for systems where a VE.Bus BMS manages Victron LiFePO4 batteries but the charger cannot be directly controlled by the BMS. Typical uses include:

  • Marine and RV lithium battery systems with high-output alternators or shore chargers
  • Off-grid solar installations requiring reliable charge disconnect for battery longevity
  • Commercial vehicle and emergency service setups where battery safety is critical

Why Choose the Cyrix-Li-Charge?

Generic charge relays lack the intelligence to interpret BMS fault signals, leaving lithium batteries vulnerable to overcharge damage. The Cyrix-Li-Charge bridges this gap, delivering precise, automated protection that reduces the risk of thermal runaway and premature capacity loss. Its 230 A continuous rating supports large battery banks, while the low standby draw preserves battery state of charge during storage.

For installers and system integrators, the Cyrix-Li-Charge simplifies wiring and enhances safety by centralising charge control through the proven Victron ecosystem. It eliminates the need for complex workarounds or additional contactors, saving time and reducing potential failure points.

Take Control of Your Lithium Charging

Equip your Victron LiFePO4 system with the Cyrix-Li-Charge 230A to ensure every charge cycle is safe, controlled, and optimised for battery health. Add to your system today and experience the confidence of fully integrated lithium protection.


SKU: Vic-CYR010230430

SPECIFICATIONS

Specifications

ModelCyrix-Li-Charge 12/24V-230A Intelligent Charge Relay
Part NumberCYR010230430
Continuous Current And Breaking Capacity At 12 V Or 24 V230 A
Breaking Capacity At 48 V80 A
LED Status IndicationYes
Control CableIncluded (length 1 m)
Connect Voltage13.0 V / 26.0 V / 52.0 V
Current Consumption When Open<4 mA
Protection CategoryIP54
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-CYR010230430
Barcode: 8719076022237
Model #: CYR010230430
MPN: CYR010230430

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.

Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.

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