Digital Systems

OT 4DIM IP20 Outdoor

Product family features
  • Available with different wattage: 40 W, 60 W, 90 W, 165 W
  • Input voltage: 120…277 V (40 W), 220…240 V (60 W, 90 W, 165 W)
  • Current output range: 70…1,050 mA
  • Flexible current setting with one additional wire (LEDset2)
  • AstroDIM for autonomous dimming with five independent levels (astro, time mode)
  • Allows for energy saving in twilight phases
  • MainsDIM function for dimming via reduction of line voltage amplitude
  • Isolated DALI interface for bidirectional telemanagement systems
  • Standby power consumption: < 0.5 W
  • Constant Lumen Output (CLO)
  • Overtemperature protection via external NTC
Product family benefits
  • 4DIM functionality in one device (StepDIM, AstroDIM, MainsDIM, DALI)
  • Very high efficiency
  • High surge protection: up to 10 kV (1 pulse) / 8 kV, in protection class I or II
  • Low luminous efficacy tolerance through low output current tolerance of ± 3 %
  • Great flexibility due to wide operating temperature range of -40…55 °C or 60 °C
  • Protection through double isolation between mains input and LED output
Equipment / Accessories
  • DALI magic hardware for configuring 4DIM ECGs necessary
  • Programmable via Tuner4TRONIC software


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Nominal output voltage
Nominal output current
Data sheet
OT 40/120…277/1A0 4DIMLT2 E
15…56 V 70…1050 mA 123.0 mm 79.0 mm 33.0 mm
OT 60/170…240/1A0 4DIMLT2 E
30…115 V 75…1050 mA 133.0 mm 77.0 mm 40.0 mm
OT 90/170…240/1A0 4DIMLT2 E
57…186 V 70…1050 mA 133.0 mm 77.0 mm 40.0 mm
OT 165/170…240/1A0 4DIMLT2 E
90…285 V 120…1050 mA 170.0 mm 100.0 mm 40.0 mm



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Information about Family

This programmable constant current LED power supply brings you lots of functionality and options in one product family. Available in a choice of wattage (40 W, 60 W, 90 W, 165 W) and input voltages, it is ideal for street lighting, urban and industrial lighting. You can use it in luminaires of protection classes I and II, and outside in luminaires with protection of IP54 or greater. You get a choice of 4 dimming capabilities including DALI, constant lumen function and overtemperature protection via external NTC. If programmable, dimmable light is what you need, then look no further.
Areas of application
  • Street and urban lighting
  • Industry
  • Suitable for outdoor applications in luminaires with IP > 54
  • Suitable for use in outdoor luminaires of protection class I and II