KNX POWER SUPPLY 320 mA with IP interface

rail mounting device, 6 rail units
Project design and commissioning with ETS5 or a more recent version
ETS product family: System components
Product type: Power supply

Intended use

  • Supplying KNX devices with bus voltage
  • Connection between KNX devices and PC or other data processing devices via IP
  • Operation as data interface
  • Mounting on DIN rail according to EN 60715 in distribution boxes

20320 1S IPS R

Product characteristics

  • Output with integrated choke for supplying KNX bus lines
  • Reset of KNX lines via reset button or communication object
  • Short-circuit proof
  • Overvoltage proof
  • No-load protection
  • KNX Data Secure compatible with ETS 5.7.3 or higher
  • KNX IP Secure compatible with ETS 5.7.3 or higher
  • LED display for KNX communication, Ethernet communication and programming mode
  • Configuration via ETS
  • SNTP server
  • 8 connections to IP terminal devices, e.g. for simultaneous visualisation and configuration
  • Electrical isolation between KNX and IP network


Application program A (delivery state):

  • Presence control: with key card holder or presence detector
  • Welcome/Goodbye scenes


Or alternatively application program B (V02 or higher and in combination with remote access licence ref.-no. IPS-L):

  • Encrypted access to KNX devices for configuration and maintenance outside the local network
  • Enabling access via communication objects
  • Feedback on access and programming processes via communication objects

Technical data

Rated voltage: AC 110 … 240 V (± 10 %)
Mains frequency: 50/60 Hz
Power loss (max. load on all outputs): max. 1.4 W
Efficiency: approx. 88 %
Rated voltage: DC 230 V (± 10 %)
Rated capacity: 12 W
    KNX medium: TP 256
    Bus output voltage: DC 28 … 31 V SELV
    Output current: 320 mA
    Short-circuit current: max. 1 A
    Parallel operation with identical power supply: no
    Connection, KNX: terminal
IP communication: Ethernet 10/100 BaseT (10/100 Mbit/s)
IP connection: RJ45 socket
Ambient temperature: −5 … +45 °C
Storage/transport temperature: −25 … +75 °C
Relative humidity: max. 93 % (no condensation)
Mounting width: 108 mm (6 rail units)
Connection mode: screw terminals
    single wire: 1 x 1 … 4 mm²
    stranded without ferrule: 1 x 1 … 4 mm²
    stranded with ferrule: 1 x 1 … 2.5 mm²

Product documentation


Product data sheet


Database ETS5 secure


EC Declaration of Conformity


Operating instructions





SKU: 20320 1S IPS R Categories: ,