Victron Cyrix-ct 12/24V-120A Intelligent Battery Combiner
- Brand:
- Victron Energy
- Part no:
- CYR010120011
Where to buy
Specifications
- Type
- Relay combiner
- Continuous rating
- 120 A
- System voltage
- 12/24 V
- Ingress rating
- IP54
Manuals and data sheets
- Cyrix Li-ion series 120 A data sheet (PDF)www.victronenergy.com
- Cyrix Li-ion series 230 A data sheet (PDF)www.victronenergy.com
Full data sheet
Victron Energy, part number CYR010120011
Technical
- Current Consumption when Closed at 12V
- 220 mA
- Cranking Current Rating (5 seconds)
- 180 A
- Continuous Current
- 120 A
- Connect Voltage
- From 13 to 13.8V and 26 to 27.6V with intelligent trend detection
- Disconnect Voltage
- From 11 to 1.8V and 22 to 25.7V with intelligent trend detection
- Nominal Battery Voltage
- 12V or 24V (automatic detection)
- Start Assist
- Yes (Cyrix remains engaged during 30 seconds)
- Current Consumption when Open
- 4 mA
- Current Consumption when Closed at 24V
- 120 mA
Connections
- Battery Terminals
- M6 bolts
- Start Assist Terminal
- Faston tab 6.3 mm
- batteryNegativeTerminal
- Faston tab 6.3 mm
Enclosure
- Height
- 46 mm (1.8 in)
- Protection category
- IP54
- Weight
- 0.11 kg (0.2 lb)
- Width
- 46 mm (1.8 in)
- Depth
- 89 mm (3.5 in)
The Cyrix-ct 12/24V-120A is a battery combiner that detects 12 V or 24 V automatically. Victron describes the Cyrix family as relay combiners that join batteries in parallel once one reaches a set voltage. This one is rated 120 A continuous and 180 A for a 5 second cranking surge, and its start assist keeps it closed for 30 seconds. It connects on M6 bolts, sits in an IP54 case, and draws 4 mA when open and 220 mA when closed at 12 V.
Our take
Because the Cyrix-ct is a relay rather than a diode, there is virtually no voltage drop across it, so alternator output needn't be raised to compensate. It is rated 120 A continuous with 180 A for 5 seconds of cranking, and draws 220 mA at 12 V while closed.
From our buying guide
NMMA says not to mix battery chemistries or types in the same bank, and the makers add their own limits.
Check before you buy:
- Each maker sets its own alternator rules. Battle Born calls a DC-to-DC charger a simple and safe way to use alternator charging.
- Battle Born warns that a BMS shutdown leaves the vessel without power, and that one during alternator charging can severely damage the alternator.
- Ignition protection on a charger or switch is the maker's statement, so read what it says and which standard it names.