Osram OTI DALI 50/220-240/1A4 LT2FAN, Constant Current DALI LED Driver Module 55W 15 → 54V 1.4A, OPTOTRONIC

  • RS Stock No. 171-1594
  • Mfr. Part No. OTI DALI 50/220-240/1A4 LT2FAN
  • Manufacturer Osram
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): CN
Product Details

Optotronic Intelligent Dali 50/220-240/1A4 LT2FAN Compact Constant Current LED Driver.

The Optotronic Intelligent OTi Dali LT2FAN LED Driver is a versatile driver suitable for use in luminaires that have a flexible current (protection class I and II), (DALI, CLO, LED set and indoor SELV installations. OTi Dali LED drivers are designed for operating LED modules and developed for the lighting industry. This efficient driver is dimmable, has Smart Control protection, soft switch off function, plus, is suitable for buildings to EPBD, BREEAM and LEED due to the automatic Constant lumen output setting. Suitable for various applications this IP 20 LED driver is reliable, has a wealth of benefits plus is 91% ECG Efficient with 55 W output.

Features and Benefits.

• Intelligent OTi Dali LT2FAN LED Driver.
• Flexible output.
• High efficiency.
• Thermal management and Smart control protection.
• Dimmable, high quality 1 – 100% by amplitude.
• Soft switch off function (OTi Dali 15).
• Suitable for SELV installations.
• Three level corridor function.
• Touch DIM application (controlled by pushbutton or sensor).
• Energy efficient.
• DC Detection.
• ECG Efficiency 91%.
• Output 55 W.
• Made from plastic.
• Lifespan 50,000 / 100,000 h.
• Overheat, overload and short circuit protection (automatic reversible).
• Maximum cable length to LED module 2m.
• 1 Channel.
• Suitable for emergency lighting.
• Push terminal connection.

Mounting Features.

• Length 110 mm.
• Width 75 mm.
• Height 25 mm.
• Length mounting hole spacing 99 mm.
• Width mounting hole spacing 64 mm.
• Weight 180 g.

Typical Applications.

• Emergency lighting.
• Luminaires with a flexible current setting.
• Indoor SELV installations.
• Downlights.
• Spotlights.
• LED Panels.
• Luminaires with protection class I and II.
• Corridors.
• Restrooms.
• Buildings according to EPBD/BREEAM/LEED (automatic Constant lumen output setting).

Other Optotronic LED Drivers Available.

• Stock number 8930502, part OTi DALI 25/220 - 240/700 LT2.
• Stock number 8930514, part OTi DALI 50/220 – 240/1A4 LT2 FAN.
• Stock number 8930555, part OTi DALI 50/220-240/1A4 LT2 L.
• Stock number 1711594, part OTi DALI 50/220-240/1A4 LT2FAN.
• Stock number 1711603, part OTi DALI 35/220-240/700 LT2L.
• Stock number 8930549, part OTi DALI 35/220-240/700 LT2L.
• Stock number 8930542, part OTi DALI 80/220 – 240/1A6 LT2L.
• Stock number 1711602, part OTi DALI 80/220-240/1A6 LT2L.
• Stock number 8930546, part OTi DALI 80/220-240/2A1 LT2L.


ENEC 10, VDE, EMC, EL, CE, DALI-2, EN 61347-1, EN 61347-2-13, EN 55015, EN 61547, EN 61000-3-2, EN 62834, EN 62386, IEC 62836-101.Ed2, IEC 62386-102.Ed2, IEC 62386-207.Ed1.

Attribute Value
Input Voltage 176 → 276 V dc, 198 → 264 V ac
Output Voltage 15 → 54V
Operation Constant Current
Output Current 1.4A
Maximum Output Power 55W
Dimming Operation DALI
AC or DC Input Voltage Ac, Dc
IP Rating IP20
Configuration Sealed
Number of Outputs 1
Output 15 → 54 V @ 1400 mA
Voltage Rating 176 → 276 V dc, 198 → 264 V ac
Standards Met CE, EL, EMC, EN-62384, EN55015, EN61000-3-2, EN61347-1, EN61347-2-13, EN61547, ENEC 10, VDE
Series OPTOTRONIC Intelligent
Primary Type AC-DC, DC-DC
80 In Global stock for delivery within 4 - 6 working days
Price Each (In a Box of 20)
MYR 159.104
Per unit
Per Box*
20 +
*price indicative
Related Products
Intelligent power matching thanks to Smart power supplySlim ...
Intelligent power matching thanks to Smart power supplySlim form factor for mounting on the cove or in linear luminairesMinimized flicker thanks to high PWM frequencyAvailable as Tunable White version (DALI Device Type 8)DALI message detection "LED Module failure"Areas of applicationCove ...
Our RS Pro Range of compact LED Drivers ...
Our RS Pro Range of compact LED Drivers range suitable for indoor have a logarithmic dimming range. We offer the range with a 3 year warranty as standard. Input Voltage 180-240 Vac Low Profile Compact Plastic Low Profile enclosure3 Year ...
12vdc Input CC 700mA DC-DC LED Driver Wire ...
12vdc Input CC 700mA DC-DC LED Driver Wire term. Suitable for 12V & 24V LEDs lighting application.Fly leads 20AWG 15cm for rapid connection.Waterproof packagingTc Point measured, Max case temperature: 70°CProtections: Short-Circuit.
XLG-50 Series is a 50W AC/DC LED driver ...
XLG-50 Series is a 50W AC/DC LED driver featuring the constant power mode output. XLG-50 operates from 100∼305VAC. The High Efficiency up to 90%, The entire Series is able to operate between -40°C ∼ 90°C wide case temperature range with ...