The first MEAN WELL power supply, compatible with KNX

Systems based on the KNX standard, characterized by comfort, security and energy efficiency, which are increasingly used in building automation and more. The KNX system allows you to create intelligent building by integrating the control and supervision of stystems like: heating, ventilation, lighting, access control and detection of people in the room. Another advantage of the KNX system is the minimum amount of cabling, which significantly improves safety and reduces costs.

Power supply KNX-20E is a new model, introduced into mass production by the leading manufacturer of switching power supplies, the MEAN WELL company. The product was created in response to the increasing demand of the management and control architectural complexes according to KNX. This 20W power supply has been designed to meet the requirements of KNX power supply on the market of intelligent building management systems.


  • EIB/KNX power supply with built-in integrated choke
  • Compact size with 3SU (52.5mm) width
  • 180~264VAC input
  • Low no load power consumption<0.5W
  • 200ms mains failure back-up time
  • Button for bus reset on top
  • Class I isolation
  • Working efficiency up to 86%
  • Working temperature: -30°C ~+70°C
  • Complete protections: Short circuit / Overload (short-circuit-proof) / Over voltage
  • Cooling by free air convection
  • Approvals : SELV/KNX/TUV/CE
  • LED indicator (for normal operation, bus reset and bus overload)
  • Suitable to be installed on DIN Rail TS-35 / 7.5 or 15
  • Dimension (L x W xH): 52.5 × 90 × 55 mm

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