Mean Well
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The device has a KNX bus chocke Output and an additional Output for ancillary power. The -30∼+70°C wide temperature operating range can meet all kinds of applications. LED indicators are used in case of normal Operation, overload conditions and RESET Operation. It is perfectly suitable to power up any products labeled with the KNX Trademark. With over 30 years of industrial power supply experience, KNX-20E-640 is engineered to be a reliable and safe solution for KNX bus Environment.


  • EIB / KNX power supply with integrated chocke
  • Compact size with 3SU (52.5mm) width
  • Safety extra low voltage(SELV)180∼264VAC Input
  • No load power consumption <0.5W
  • Protections: Short circuit / Overload (short-circuit-proof) / Over voltage
  • Cooling by free air conventionIsolation class I
  • LED indicator for normal Operation, bus reset and bus overload
  • Installed on DIN rail TS-35/7.5 or 15
  • 100% full load burn-in test
  • 3 years warranty


  • Intelligent Home Control
  • Modern Building Automation
  • Lighting Control
  • HVAC System
  • Security System
  • Blinds and Shutters
  • Monitoring Systems
  • Energy Management
  • Alarm Monitoring