KNX Power supply 640 mA with integrated choke
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GIRA 213000

KNX Power supply 640 mA with integrated choke

Product code: 2130 00
A 640 mA KNX power supply to generate the KNX system voltage.
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The 640 mA power supply generates the KNX Bus voltage.

It has one non-choked and one choked output. The non-choked output can be used for the supply of another line or for function devices (e.g. SmartSensor) which require an auxiliary voltage. Any desired load distribution (choked or unchoked) is possible, however the total nominal current of 640 mA may not be exceeded in the process.

The outputs are equipped with a shared overload or short-circuit protection. Connection is made via standard KNX red and black bus connectors.

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). 

A maximum of two identical power supply units (of the same manufacturer and device type) can be connected in parallel in a bus line to increase the rated current. Here, it is not necessary to have a 200 m bus line between the power supply units. This is useful for lines with more devices than can be supplied or as a fail safe.

Technical Details



  • Primary rated voltage: AC 180 V to 264 V, 50/60 Hz DC 240 V to 250 V
  • Secondary rated current: 640 mA (max load on all outputs) 

KNX Choked Output

  • Bus Output Voltage: 28-31 VDC SELV
  • KNX Medium: TP256
  • Short Circuit Current: Max 1.5A

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



Technology KNX
Brand GIRA
Mounting DIN Rail
Operating voltage 230VAC
Output Rating 640mA
IP rating IP20
Mounting Width 4MW
EAN 4010337003519

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