Victron
Victron Cyrix-Li-load 12/24V 120A
Pickup available at Mercury Yacht Harbour
Usually ready in 2-4 days
Description
The Victron Cyrix-Li-load 12/24-120 is a microprocessor controlled load relay for lithium systems, fitted between a Victron LiFePO4 battery and a load. Under the control of a Victron VE.Bus BMS it disconnects the load before the lithium cells can be driven into a damaging under voltage condition, then reconnects automatically once the battery has recovered.
Rated at 120 A continuous, it disengages the moment its control input becomes free floating, which the BMS does on an imminent cell under voltage. If the battery voltage then recovers, the relay reengages after 30 seconds. After three attempts it stays open until the battery voltage has risen above 13 V (26 V on 24 V, 52 V on 48 V) for at least 30 seconds, confirming the battery is truly being recharged.
The Cyrix-Li-load is used where a load cannot be switched directly by the BMS. It is intended for 12 V and 24 V systems and must be used with a Victron VE.Bus BMS (or miniBMS) and Victron lithium batteries. A BatteryProtect is an alternative where very low standby consumption is required.
PRODUCT DETAILS
- Load relay for lithium systems, 120 A continuous
- Fitted between a Victron LiFePO4 battery and a load
- Controlled by a Victron VE.Bus BMS for full lithium protection
- Disconnects the load on an imminent cell under voltage
- Reengages 30 seconds after the battery voltage recovers
- Stays open after 3 attempts until the battery is genuinely recharged
- Used where a load cannot be switched directly by the BMS
- Compact IP54 enclosure for 12 V and 24 V systems
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Key specifications
| Continuous current | 120 A |
| System voltage | 12/24 V |
| Technology | Relay (microprocessor-controlled) |
| Breaking capacity at 48 V | 40 A |
Operation
| Function | Load relay between LiFePO4 battery and load |
| Control input | Engages when high (approx. battery voltage), disengages when free floating or pulled low |
| Disconnect condition | Immediate when control input becomes free floating (imminent cell under voltage) |
| Reconnect condition | Reengages after 30 seconds; after 3 attempts, only once voltage exceeds 13 V / 26 V for 30 seconds |
General
| Current consumption when open | < 4 mA |
Enclosure
| Protection category | IP54 |
| Dimensions (H x W x D) | 46 x 46 x 80 mm |
| Weight | 0.11 kg |
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