DDC444

4 Channel Volt Free Input Unit

DDC444

The DDC444 input unit is a fully DALI compliant interface, designed to allow customer specified switches, sensors, time clocks or other on / off control devices to be incorporated into a DALI lighting control system. The input unit is a small, pre-wired, encapsulated printed circuit board and is suitable for inclusion in to all standard size back boxes together with a suitable mains rated switch.

Key Features

  • Pre-configured with touch dimmer inputs for two groups
  • Fits into all standard size and architrave style back boxes
  • Touch dimming with a momentary switch
  • Can be used with momentary or latching switches
  • Fully programmable with system software

Order Code

  • DDC444

Dimensions

DDC444 Dimensions
L W H R T
30 20 10 120 50

Technical

  • All switches and cables must be mains rated
  • To avoid interference problems the four pre-wired switch connections and the common lead should not be increased in length
  • Can not be used to interconnect multiple DALI networks
Voltage Free Connections1–4 inputs (active low)
Com input ground
Voltage Pins 1–45V nominal with switch open, must be less than 0.3V switch closed
Overload Protection±7V
Short Circuit Protection0.5mA maximum
Debounce Period50ms
DALI ConnectionsRibbon cable terminated with 1.2mm ferrules
Switch ConnectionsRibbon cable terminated with 1.2mm ferrules
To avoid interference problems, the four pre-wired switch connections and the common lead should not be increased in length
DALI Consumption10mA
Ambient Temperature0°C to 40°C
Storage Temperature-10°C to 70°C
Relative Humidity90% max, non-condensing
HousingEncapsulated printed circuit board
Weight10g
IP RatingIP20
Compliance and Standards
EmissionEN 55 015
ImmunityEN 61 547
SafetyEN 60 950
EnvironmentComplies with WEEE and RoHS directives
CECE Marked

Wiring

DDC444 Wiring Diagram