Victron Cyrix-Li-Charge 24/48V-120A - CYR020120430

SKU: CN VICYR020120430

€ 90,88

1-2 weeks delivery time
Price incl. 19% VAT

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The Victron Cyrix-Li-Charge 24/48V-120A (CYR020120430) is an intelligent relay designed to manage the connection between a charger and 24V or 48V Victron LiFePO₄ battery systems under VE.Bus BMS control. Rated for 120A continuous current and 40A breaking at 48V, it ensures safe charging by automatically connecting when all voltage and signal conditions are met and immediately disconnecting in response to overvoltage or temperature warnings, protecting battery longevity and system integrity.

Description
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Victron Energy Cyrix-Li-Charge 24/48V-120A – Smart Charger Relay for Lithium Battery Systems (CYR020120430)

The Cyrix-Li-Charge 24/48V-120A relay is a dedicated high-current DC charger interface for Victron lithium battery systems. Controlled by a VE.Bus BMS, it enables or disables charging based on battery health, voltage thresholds, and temperature conditions. With intelligent 3-second connection logic, automatic safety disconnects, and minimal standby power draw, this relay ensures batteries charge only under safe operating conditions in advanced energy storage systems.

Key Features

Designed for 24V and 48V Victron LiFePO₄ batteries with VE.Bus BMS
120 A continuous current rating at 24V; 40 A breaking capacity at 48V
Automatic 3-second connection delay for voltage and BMS signal validation
Instant disengagement in case of cell overvoltage or overtemperature
Reconnection occurs automatically once the condition clears
1-hour periodic disengage/re-engage test to confirm charger activity
Very low current consumption when idle (<4 mA)

Charging Logic

Condition	Action
BMS control output is HIGH	Precondition for charger connection
Battery charger terminal voltage > 26.0V or 52.0V	Required to allow Cyrix to close
Battery terminal voltage > 2V	Required for valid battery connection
Trigger condition met	Cyrix engages after 3-second delay
Cell overvoltage or temperature warning	Cyrix disengages immediately
Post-alarm recovery	Cyrix reconnects after 3-second delay
1 hour after engagement	Temporary disengagement to check for charger activity

Electrical Specifications

Parameter	Value
System Voltage	24V / 48V
Continuous Current Rating	120 A
Breaking Capacity at 48V	40 A
Control Input Logic	HIGH = Engage, Floating/LOW = Disengage
Idle Power Consumption	<4 mA

Mechanical & Environmental

Parameter	Value
Dimensions (HxWxD)	46 × 46 × 80 mm
Weight	0.11 kg (0.24 lbs)
Enclosure	ABS, matte black
Protection Grade	IP54
Operating Temperature	-20°C to +50°C
Humidity	Max 95% (non-condensing)