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KNX Power Supply 1280mA

Product Code: LXA-128-30V

The iluxus Design KNX power supply generates a voltage of DC 30V and has an additional auxiliary voltage output. The integrated throttle decouples the KNX bus line from the 30 V DC auxiliary voltage. Both outputs are overload and short circuit proof. Any desired load distribution across the outputs is possible up to a maximum of 1280 mA. The LED status shows the device status and overload. Resetting is done by pressing RESET button on the front of the device.

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power supply 640mA

Product Characteristics

  • 1280 mA output current
  • Operating AC 150V – 275V @50-60 Hz
  • 2 Power Outputs: Output 1: Integrated KNX Choke (DC 30V, SELV) Output 2: External Auxiliary Supply Output (30V, SELV)
  • Short Circuit Protection for both outputs
  • Overload Protection for both outputs
  • 3 LED Indicators:
    Left LED (Green): Power
    Middle LED (Red): Overload or Short Circuit (Iout > 1280 mA, LED is ON; Otherwise, LED is OFF)
    Right LED (Red): Reset

Connection Diagram

KNX POWER SUPPLY_LXA-128-30V_Connection Diagram
power supply W3

Scale Drawing

KNX Power Supply LXA 128 30V Scale Drawing Left
KNX Power Supply LXA 128 30V Scale Drawing Top
KNX Power Supply LXA 128 30V Scale Drawing Front

Technical Data

Type of protectionIP 20EN 60529
Safety classııEN 60664
Power SupplyMains VoltageAC 230V ±15 % @ 50 Hz
Leakage Loss (Open Circuit)1,2 W
Leakage Loss (Normal)3,4 W
Power Consumption (Normal)23 W
Power Consumption (Max. Overload)42 W
Power OutputKNX Output Voltage28 ... 31 VDC (SELV)
AUX Output Voltage28 ... 31 VDC (SELV)
Rated Current1280 mA
Maximum Current (Total Output)1,3 A
Mains failure bridging time> 100 ms
Efficiency at nominal load81 %
With in Space Unit4 Modules (1 Module = 18 mm)
ConnectionsScrew Terminals0,3 - 2,5 mm²
Max. Torque0,4 Nm
KNX Connection Bus Terminal0,8 mm² Ø, solid core
Installation35mm DIN Rail
Operating ElementReset ButtonReset at the EIB/KNX Output
Left LED (Green)Output Voltage is OK
Middle LED (Red)Overload or Short Circuit
Right LED (Red)Reset
Temperature RangeOperation(-5°C ... +45°C)
Storage(-20°C ... +70°C)
HumidityMaximum air humidity5% ... 93% (non consendation)
FlammabilityNon-flammable product
DimensionsL:70 W:90 H:65 mm
Weight206 gr
StandartsEN50491-5-1 / -2 / -3, EN50581
EN61000-6-2 / -3
EN61558-1 / -2-6
CertificationKNX Certified