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Mean Well PWM-90-48DA2 Power Supply 90W 48V DALI2
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Mean Well PWM-90-48DA2 Power Supply 90W 48V DALI2
Description
Description
The PWM-90 is a 90W Mean Well DIN rail power converter with a 171mm profile (input range: 90~305VAC, operating temperature: -40~+80℃).
Key Features
- ✓ 171mm width — DIN rail TS-35 compatible
- ✓ Input voltage range: 90~305VAC
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ Cooling by free air convection
- ✓ Wide operating temperature: -40~+80℃
- ✓ Protections: Short circuit / Overload / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: Note.5 UL8750(except for DA-Type), CSA C22.2 No. 250.13-12; ENEC EN61347-1, EN61347-2-13 independent,EN62384, IP67, BIS IS15885(for 12,24,48 Blank Type only), EAC TP TC 004,GB19510.1,GB19510.14
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesPWM Series
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Power Rating90 Watt
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Output Voltage48 Volt
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Rated Current1.88 Ampere
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Input Voltage90V~305V
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No of Output1
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Dimming ControlDALI,Push Dimming
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Standards MetCB,CCC,CE,EAC,ENEC,UL
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Operation ModeConstant Voltage
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Operating Temperature-40°C~85°C
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Warranty5 Year
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Length6.73 in
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Width2.48 in
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Height1.48 in
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Weight1.7 lb
File Downloads
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Payment & Security
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Frequently Asked Questions
What is the difference between DALI and DALI2, and why does it matter for LED lighting control?
DALI2 is an updated version of the DALI standard that adds mandatory device certification, broader device type support, and improved interoperability between products from different manufacturers. The PWM-90-48DA2 supports DALI2, making it compatible with modern DALI2-certified controllers and luminaires while remaining backward compatible with DALI systems.
Can I use the PWM-90-48DA2 in an outdoor architectural lighting installation?
Yes. The PWM-90-48DA2 has an IP67 waterproof rating, protecting it against dust and temporary water immersion. It is suitable for outdoor architectural lighting, facade illumination, and landscape feature lighting supplied by 48V LED strips or modules.
Is the PWM-90-48DA2 compatible with smart building DALI2 lighting control systems?
Yes. The unit integrates directly with DALI2 bus-based lighting control systems, supporting dimming commands from DALI2 compliant controllers. With 90W output at 48V, it is appropriate for medium-scale DALI2-controlled zones in offices, retail spaces, or hospitality environments.
Can I use the PWM-90-48DA2 for museum or gallery display lighting that requires flicker-free dimming?
The PWM-90-48DA2 uses PWM-style output and DALI2 dimming control, which provides smooth, precise dimming suitable for display and accent lighting contexts. For flicker-sensitive applications, verify compatibility between the connected 48V LED driver and the specific dimming frequency your installation requires.
How much 48V LED strip can the PWM-90-48DA2 support?
The PWM-90-48DA2 supplies up to 90W at 48V. Divide 90W by your strip's power consumption per meter to find the maximum run length — a 9 W/m strip, for instance, supports up to 10 meters from a single supply. Always verify your strip's rated power per meter before finalizing the design.
Can the PWM-90-48DA2 be installed in unheated outdoor enclosures in cold climates?
Yes. The operating temperature range extends down to -40°C, so it can be installed in unheated outdoor enclosures, rooftop sign cabinets, or cold-climate installations without risk of cold-start failure. The IP67-rated enclosure also prevents moisture intrusion in these environments.
How does the PWM-90-48DA2 compare to the PWM-90-48DA and other 48V siblings?
Both the PWM-90-48DA and PWM-90-48DA2 are 90W, 48V, 1.88A units with IP67 ratings; the key difference is that the DA2 supports the DALI2 protocol while the DA supports original DALI. Other 48V options in the series include the PWM-40-48 (40W), PWM-60-48 (60W), PWM-120-48 (120W, 2.5A), PWM-120-48DA (120W, 2.5A, DALI), PWM-200-48 (200W, 4.17A), and PWM-200-48DA2 (200W, 4.17A, DALI2). Choose based on the wattage and dimming protocol your project requires.
Other PWM-90 Models
10 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PWM-90-24 Power Supply 90W 24V - Dimmable | 90W | 24V | 3.75A | IP67 | $36.37 | View |
| Mean Well PWM-90-24DA2 Power Supply 90W 24V DALI2 | 90W | 24V | 3.75A | IP67 | $50.82 | View |
| Mean Well PWM-90-12 Power Supply 90W 12V - Dimmable | 90W | 12V | 7.5A | IP67 | $42.44 | View |
| Mean Well PWM-90-48DA Power Supply 90W 48V - DALI | 90W | 48V | 1.88A | IP67 | $52.82 | View |
| Mean Well PWM-90-48 Power Supply 90W 48V - Dimmable | 90W | 48V | 1.88A | IP67 | $44.52 | View |
| Mean Well PWM-90-36DA Power Supply 90W 36V - DALI | 90W | 36V | 2.5A | IP67 | $52.82 | View |
| Mean Well PWM-90-36 Power Supply 90W 36V - Dimmable | 90W | 36V | 2.5A | IP67 | $44.52 | View |
| Mean Well PWM-90-24DA Power Supply 90W 24V - DALI | 90W | 24V | 3.75A | IP67 | $47.55 | View |
| Mean Well PWM-90-12DA2 Power Supply 90W 12V DALI2 | 90W | 12V | 7.5A | IP67 | $50.82 | View |
| Mean Well PWM-90-12DA Power Supply 90W 12V - DALI | 90W | 12V | 7.5A | IP67 | $50.82 | View |
