1 Channel 1–10V & DSI Controller


The DDC472 1–10V converter has been designed to control electronic ballasts which comply with EN60929 and ballasts which comply with the DSI standards. This ensures DALI systems are compatible and easily integrated in to existing systems. The converter can switch a maximum of 15 ballasts, the 1–10V and the DSI output can control up to 50 electronic ballasts.

Key Features

  • For 1–10V control the converter can switch a maximum of 15 ballasts, an external contactor should be used for more ballasts
  • Converter complies with DSI 1 and DSI 2 standards
  • Default light output at initial power up is 100%
  • Easy programming by using the group selection switch

Additional Features

The following functions may be programmed using the Helvar Designer software

  • Min / Max levels, Fade times*, Scenes* and Groups*
  • Controller status report
  • System failure level / ignore
  • Power on to last level
  • Sink or source mode

* These functions are programmable using infrared remote control.

Order Code

  • DDC472


  • Single DALI Network Router
  • Twin DALI Network DALI Router
  • Twin DALI Network Router with DMX and S-DIM


DDC472 Dimensions
90 70 58

Installation Notes

  • The external mains supply must be protected
  • It is recommended that a 10A Type C MCB is used
  • All cabling must be 230V mains rated


DALI ConnectionRemovable connectors with paired terminals
0.5mm²–1.5mm² stranded or solid core
Mains ConnectionUp to 4mm² solid core or up to 2.5mm² stranded
DSI / 1–10VUp to 2.5mm²
Mains Supply85–264V AC 48–62Hz
Mains Output10A Resistive, switched live
Load15 Ballasts
DALI Consumption2mA
Analogue Output1–10V according to EN 60 929
Sink Current: 100mA Maximum
Max number of analogue ballasts: 50
Source Mode Current: 1.5mA
DSI OutputMax number of ballasts: 50
Complies with DSI standard v2.0
Ambient Temperature0°C to 40°C
Storage Temperature-10°C to 70°C
Relative Humidity90% max, non-condensing
HousingDIN rail case 70mm wide 4U
IP RatingIP30 (IP00 at connectors)
Isolation4kV Mains to DALI
3kV Mains to 1–10V
3kV Mains to DSI
4kV DALI to 1–10V & DSI
Compliance and Standards
EMC EmissionEN 55 015
EMC ImmunityEN 61 547
SafetyEN 60 950


Analogue Wiring

DDC472 Wiring Diagram

DSI Wiring

DDC472 Wiring Diagram