Ledvance DR EXTERNAL DALI -1X15-37W 220-240 – DALI 2 Certified LED Driver For LED Tubes

DR EXTERNAL DALI -1X15-37W 220-240 Technical Data

DR EXTERNAL DALI -1X15-37W 220-240 Electrical data

Nominal wattage 38.70 W
Nominal output power 37 W 1)
Nominal voltage 220…240 V
Nominal output voltage 25…48 V 2)
Input voltage range 220…240 V
Input voltage AC 198…264 V 3)
Input voltage DC 220…240 V
U-OUT (working voltage) 60 V
Type of current DC
Nominal current 0.21 A
Nominal output current 0.35…0.86 A 4)

Inrush current 60 A 5)
Output current tolerance 10 %
Output ripple current (100 Hz) ≤ 5 %
Mains frequency 0/50/60 Hz
Total harmonic distortion < 20 % 6)
Power factor λ 0.95 7)
ECG efficiency 86 % 8)
Device power loss 6 W 9)
Max. ECG no. on circuit breaker 10 A (B) 14
Max. ECG no. on circuit breaker 16 A (B) 23
Max. ECG no. on circuit breaker 25 A (B) 36
Surge capability (L/N-Ground) 2 kV
Surge capability (L-N) 1 kV
Galvanic isolation SELV
Operating frequency 0/50/60 Hz
Power loss in stand-by mode < 0.5 W

DR EXTERNAL DALI -1X15-37W 220-240 Dimensions & Weight

DR EXTERNAL DALI -1X15-37W 220-240 Top View

DR EXTERNAL DALI -1X15-37W 220-240 Side View

Length 286.00 mm
Mounting hole spacing, length 274 mm
Width 31.00 mm
Height 21.00 mm
Cable cross-section, input side 0.5…1.5 mm²
Cable cross-section, output side 0.5…0.75 mm²
Prewired No
Wire preparation length, input side 8…9 mm
Wire preparation length, output side 8…9 mm
Product weight 225.00 g

Colours & materials

Product colour White
Casing material Metal / CGCC
Body material Metal

Temperatures & operating conditions

Ambient temperature range -20…+50 °C 1)
Maximum temperature at tc test point 80 °C
Max.housing temperature in case of fault 110 °C
Temperature range in operation -20…+50 °C
Permitted rel. humidity during operation 10…85 % 2)
ECG lifetime 100000 h 1)

DR EXTERNAL DALI -1X15-37W 220-240 Capabilities

Dimmable Yes
Dimming interface DALI-2 / Push-DIM
Dimming range 1…100 %
Overheating protection Yes
Overload protection Yes
Short-circuit protection Yes
Max. cable length to lamp/LED module 2,0 m
Suitable for fixtures with prot. class I / II
Suitable for emergency lighting Yes
Type of connection, output side Push terminal

Certificates & Standards

Approval marks – approval CE / CB / ENEC / UKCA / EL
Standards Acc. to EN 61347-1 / Acc. to ENEC 61347-2-13 / Acc. to EN 62384 / Acc. to EN 55015 / Acc. to EN 61000-3-2 / Acc. to EN 61547
Protection class I
Type of protection IP20

LOGISTICAL DATA

Temperature range at storage -20…+80 °C

DALI LED drivers for LED tubes (T8/T5) are intelligent, addressable power supplies that allow individual or group control of lighting via the Digital Addressable Lighting Interface protocol. They offer smooth, flicker-free dimming (usually 1–100%) and monitoring, ideal for commercial, office, or industrial energy-saving systems.

Key Features and Benefits

DALI-2 Compatibility: Modern drivers comply with IEC 62386/IEC 60929 standards, ensuring interoperability with various control systems.

Adjustable Output: Many drivers feature dip switches to adjust the constant current (mA) to match different LED tube power requirements, often covering ranges from 5W to 60W.

Flexible Control: They support both DALI addressing and push-dimming (using a standard push button) for brightness adjustment.

Advanced Diagnostics: DALI allows monitoring of lighting circuits, crucial for maintenance in large installations.

Protection: They commonly include built-in protections against short circuits, overloads, and over-currents.

Common Specifications

Types: Available in Constant Current (most common for single-ended tubes) and Constant Voltage (for specific LED modules).

IP Rating: Mostly IP20 for indoor dry environments, though IP65/67 options exist for damp areas.

Lifespan: High-quality drivers can offer up to 70,000 hours of operation.

Dimming: Smooth dimming from 1% to 100%.

Installation Tips

Wiring: DALI systems use a two-wire control bus that can be wired alongside the mains supply, simplifying installation compared to traditional dimming.

External Drivers: For tubes, these are often used as external, remote-mounted drivers.

Compatibility: Ensure the driver’s output current (e.g., 350mA, 700mA) and voltage range match the specifications of the LED tube.

LEDVANCE was introduced to the world in 2016 as a spin off from the lighting pioneers OSRAM. As a new brand with over 100 years of experience, we are proud of our manufacturing excellence, innovative spirit and passion for lighting. Since then, we have developed an extensive luminaires portfolio, received several awards for our human centric lighting (HCL) solutions and emerged as one of the top players in the global lighting market.

Today, as the world faces groundbreaking challenges and transformations from a cost of living and energy crisis to climate breakdown and environmental destruction the story of LEDVANCE also must adapt and evolve. We want to stay true to our roots as industry innovators and push forward, find imaginative solutions to our customers’ challenges and develop into a broader company that goes beyond just lighting.

True to our new mantra “Power Through Light”, we want to empower our customers to harness the power of light like never before both as a tool for illumination as well as for power generation. Our intelligent energy solutions, solar technology, and advanced lighting systems for improved working and living environments mean that our customers benefit from this transformation with real savings in energy costs. At the same time, we are committed to contributing to a greener planet by reducing CO2 emissions and waste through sustainable products, solutions and processes.

Times are truly challenging, but we have a chance to both improve people’s quality of life with smart and simply powerful products and to conserve the planet’s resources by finding the right solutions together with our customers. We have the courage and experience to accelerate converting all these opportunities into reality. Because what matters most is leaving a world where future generations can thrive. Together, we make change happen.