Over 15 years experience of providing support of MEAN WELL Power Supplies
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Mean Well ELG-240-C2100DA Power Supply 240W 2100mA - DALI
The ELG-240 is a 240W Mean Well power converter (input range: 100~305VAC).
Key Features
- ✓ Input voltage range: 100~305VAC
- ✓ DC output voltage adjustable ±10%
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ Protections: Short circuit / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: (type”HL”), CSA C22.2 No. 250.13-12;IEC/EN/AS/NZS 61347-1, IEC/EN/AS/NZS 61347-2-13 UL8750 EAC TP TC 004;BIS IS15885(for 24/24B/36/36A/42/42A/48/48A/54/54A only) GB19510.14,GB19510.1; IP65 or IP67; KC61347 1 KC61347 2 13
- ✓ 3 years warranty
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BrandMean Well
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SeriesELG-C Series
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Power Rating241.5 Watt
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Output Voltage120 Volt
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Rated Current2.1 Ampere
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Input Voltage100V~305V
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No of Output1
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Dimming ControlDALI
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Standards MetBSI,CB,CCC,CE,EAC,ENEC,RCM,UL
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Operation ModeConstant Current
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Operating Temperature-40°C~85°C
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Warranty5 Year
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Length9.61 in
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Width2.8 in
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Height1.48 in
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Weight2.69 lb
::specification::
Frequently Asked Questions
Can the ELG-240-C2100DA be integrated into a DALI building automation system?
Yes. The 'DA' suffix indicates native DALI (Digital Addressable Lighting Interface) dimming support. The ELG-240-C2100DA can be addressed and controlled individually over a DALI bus, making it suitable for integration into building management systems that use DALI for luminaire control, scene setting, and energy monitoring.
Is the ELG-240-C2100DA suitable for LED downlights in a smart office or hospitality project requiring scene control?
Yes. DALI support allows each driver to be individually addressed, grouped, and dimmed via a DALI controller, which is exactly the control architecture used in smart office and hospitality lighting for scene-based control. At 241.5W and 2100mA constant current, the driver can supply a substantial LED downlight circuit from a single unit.
What is the IP rating of the ELG-240-C2100DA and where can it be installed?
The ELG-240-C2100DA is rated IP67, meaning it withstands temporary water immersion up to 1 metre. This allows installation in wet indoor locations, outdoor enclosures, and other environments where splashing or condensation is present. Its -40°C to +85°C operating range also covers extreme outdoor conditions.
How does the ELG-240-C2100DA differ from the ELG-240-C2100B in the same power class?
Both are 241.5W, 2100mA constant current drivers with a 57–115V CC range and IP67 rating. The ELG-240-C2100B uses analog dimming (0–10V / PWM / resistance), while the ELG-240-C2100DA uses DALI digital dimming with individual addressability. Choose the DA model for DALI-based installations and the B model for simpler analog dimming systems.
How many LEDs can be connected in series to the ELG-240-C2100DA?
The driver sources 2100mA constant current with an output voltage window of 57–115V. The number of LEDs you can connect in series depends entirely on each LED's forward voltage — the total of all forward voltages in the series string must land within the 57–115V range. There is no single LED count that applies to all LED types.
Does the ELG-240-C2100DA support universal input voltage for global installations?
Yes. The ELG-240-C2100DA accepts 100–305VAC, which covers all common single-phase supply voltages globally, including 100V (Japan), 120V (North America), 230V (Europe), and 277V (US commercial). No voltage selection switch is required.
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