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Mean Well PWM-90-48DA Power Supply 90W 48V - DALI 1.88A
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Mean Well PWM-90-48DA Power Supply 90W 48V - DALI 1.88A
The PWM-90 is a 90W Mean Well AC-DC constant voltage LED driver (input: 90~305VAC, output: 48V, operating temperature: -40~+85°C).
Key Features
- ✓ Input voltage: 90~305VAC
- ✓ Output voltage: 48V
- ✓ Rated output current: 1.88A
- ✓ DALI dimming support
- ✓ Class II design — no earth connection required
- ✓ Ingress protection: IP67
- ✓ Operating temperature: -40~+85°C
- ✓ Safety certifications: CB, CCC, CE, EAC, ENEC, UL
- ✓ 5 year warranty
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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
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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
::specification::
Frequently Asked Questions
Can I use the PWM-90-48DA to drive 48V LED strips outdoors?
Yes. The PWM-90-48DA carries an IP67 waterproof rating, meaning it is protected against temporary immersion in water and continuous dust ingress. It is suitable for outdoor LED strip installations such as facade lighting, signage, or covered architectural features where moisture exposure is expected.
Is the PWM-90-48DA suitable for powering large-format LED channel letter signage?
Yes. The unit delivers 90W at 48V constant voltage with PWM-style output, which makes it compatible with 48V LED modules used in illuminated channel letter and cabinet signage. The IP67 rating also allows installation in sign cabinets exposed to condensation or outdoor conditions.
Can I use this supply for a DALI-controlled 48V LED strip lighting project?
Yes. The PWM-90-48DA includes a DALI dimming interface, so it can receive dim commands from a DALI controller or building automation system. This makes it well suited for architectural lighting applications where centralized DALI dimming control is required.
How many meters of 48V LED strip can the PWM-90-48DA power?
The PWM-90-48DA provides a maximum of 90W at 48V. To calculate compatible strip length, divide 90W by your strip's rated power per meter — for example, a 10 W/m strip supports up to 9 meters. Always check your specific strip's rated power per meter before finalizing the design.
What input voltage range does the PWM-90-48DA accept?
The PWM-90-48DA accepts 90–305VAC input, covering both standard 120VAC (North America) and 230VAC (Europe/Asia) mains without any manual switching. This wide-range input makes it suitable for international deployments.
Can the PWM-90-48DA operate in extreme temperature environments such as cold storage or rooftop installations?
Yes. The operating temperature range is -40°C to +85°C, so it can handle harsh cold environments like freezer rooms as well as hot rooftop or industrial enclosures. The IP67-rated fully isolated plastic case provides additional protection in these demanding settings.
How does the PWM-90-48DA differ from other 48V models in the PWM series?
Within the 48V PWM line, the PWM-40-48 delivers 40W (0.84A), the PWM-60-48 delivers 60W (1.25A), the PWM-90-48 and PWM-90-48DA both deliver 90W (1.88A), and the PWM-120-48 and PWM-120-48DA deliver 120W (2.5A), while the PWM-200-48 family reaches 200W (4.17A). The PWM-90-48DA is the standard DALI-controllable 90W option; the PWM-90-48DA2 supports the newer DALI2 protocol, and the PWM-90-48 has no DALI interface.
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Other PWM-90 Models
10 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PWM-90-24 Power Supply 90W 24V - Dimmable 3.75A | 90W | 24V | 3.75A | IP67 | $36.37 | View |
| Mean Well PWM-90-24DA2 Power Supply 90W 24V DALI2 3.75A | 90W | 24V | 3.75A | IP67 | $50.82 | View |
| Mean Well PWM-90-12 Power Supply 90W 12V - Dimmable 7.5A | 90W | 12V | 7.5A | IP67 | $42.44 | View |
| Mean Well PWM-90-48DA2 Power Supply 90W 48V DALI2 1.88A | 90W | 48V | 1.88A | IP67 | $50.82 | View |
| Mean Well PWM-90-48 Power Supply 90W 48V - Dimmable 1.88A | 90W | 48V | 1.88A | IP67 | $44.52 | View |
| Mean Well PWM-90-36DA Power Supply 90W 36V - DALI 2.5A | 90W | 36V | 2.5A | IP67 | $52.82 | View |
| Mean Well PWM-90-36 Power Supply 90W 36V - Dimmable 2.5A | 90W | 36V | 2.5A | IP67 | $44.52 | View |
| Mean Well PWM-90-24DA Power Supply 90W 24V - DALI 3.75A | 90W | 24V | 3.75A | IP67 | $47.55 | View |
| Mean Well PWM-90-12DA2 Power Supply 90W 12V DALI2 7.5A | 90W | 12V | 7.5A | IP67 | $50.82 | View |
| Mean Well PWM-90-12DA Power Supply 90W 12V - DALI 7.5A | 90W | 12V | 7.5A | IP67 | $50.82 | View |
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