KNX Power supply 1280 mA with integrated choke
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  • G213800
  • New g213800
GIRA 2138 00

KNX Power supply 1280 mA with integrated choke

Product code: 213800
A 1280 mA KNX power supply to generate the KNX system voltage.
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The 1280 mA KNX power supply generates the KNX system voltage.

It has one non-choked and one choked output each. The non-choked output can be used for the supply of another line or for function devices such as displays which require an auxiliary voltage. Any desired load distribution (choked or unchoked) is possible, however the total nominal current of 1280 mA may not be exceeded in the process.

The outputs are equipped with a shared overload or short-circuit protection. 

The power supply unit possess a potential¬≠ free relay output as a signalling contact for operating or diagnostic messages. This contact is closed in normal operation and opened when device operation is faulty (overload, over voltage, voltage failure). 

Only one power supply can be connected per line. The high rating of the power supply is for KNX lines with devices drawing substantial more from the bus than normal or if the auxiliary output is being used to power higher current devices. 

Technical Details



  • Primary rated voltage: AC 180 V to 264 V, 50/60 Hz DC 240 V to 250 V
  • Secondary rated current: 1280 mA (max load on all outputs) 

KNX Choked Output

  • Bus Output Voltage: 28-31 VDC SELV
  • KNX Medium: TP256
  • Short Circuit Current: Max 3A

Auxiliary Output

  • Output Voltage: 30VDC

Signal Output

  • Switching Voltage: 12 - 230 VAC/ 2 - 30 VDC
  • Switching Current: 5 mA - 2A


  • KNX Terminal (no data rail required)
  • Load via screw terminals: 0.5 to 4 mm2
  • Protection type: IP 20



Brand GIRA
Technology KNX
Mounting DIN Rail
Operating voltage 230VAC
Output Rating 1280mA
IP rating IP20
Mounting Width 6MW
EAN 4010337086000

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