DIIA logo



Rail-PSU-D4 is a four channel DALI Bus Power Supply, now discontinued. It has been replaced by daliPSU quad.

Product code: Rail-PSU-D4 Category: Tags: , ,


Rail-PSU-D4 is a DALI Bus PSU with four outputs (enabling it to power four DALI circuits of up to 64 ballasts each). It has two connections per output to facilitate daisy chain connection, providing easy installation into new or existing DALI systems.

Each output has a separate indicator LED that indicates data transmit/receive and short conditions.

Rail-PSU-D4 requires a 24 VDC power supply. We recommend the PSU-24-2-FER Рsee PSU.

Rail-PSU-D4 is often used alongside the Artistic Licence product DMXtoDALI quad, which allows a DMX controller to command DALI ballasts.


  • 4 current-limited DALI compliant power bus outputs
  • Short-circuit proof outputs
  • Each output has two sets of connectors to facilitate daisy chain connection
  • LED indicators show presence of DALI activity, input supply voltage and DALI bus voltage
  • Fully accessible screw terminals for easy connection
  • DIN Rail or surface mount
  • All outputs align with Rail-DMX-DALI terminals
  • Rail-DMX-DALI and Rail-PSU-D4 can be powered together by the same 24V PSU


  • Listing: CE
  • IP Rating: Indoor use
  • Input Voltage: 24 VDC
  • Input power: 25W (max)
  • Output Voltage: 16 V
  • Output Current: 250 mA (per output)
  • Width: 88mm (5M)
  • Height: 90 mm
  • Depth: 58 mm
  • Net Mass: 0.20 kg
  • Manufacturer: Artistic Licence
  • Country of Manufacture: UK