Over 15 years experience of providing support of MEAN WELL Power Supplies
The PWM-120 is a 120W Mean Well DIN rail power converter with a 191mm profile (input range: 90~305VAC, operating temperature: -40~+80℃).
Key Features
- ✓ 191mm 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( type ”HL” )(except for 12DA type), CSA C22.2 No. 250.13-12; ENEC EN61347-1, EN61347-2-13,EN62384 independent, IP67,BIS IS15885( for PWM-120-12,24 only), EAC TP TC 004,GB19510.1,GB19510.14
- ✓ 3 years warranty
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BrandMean Well
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SeriesPWM Series
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Power Rating120 Watt
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Output Voltage48 Volt
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Rated Current2.5 Ampere
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Input Voltage90V~305V
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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~90°C
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Warranty5 Year
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Length19.1 cm
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Width6.3 cm
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Height3.75 cm
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Weight0.97 kg
::specification::
Frequently Asked Questions
Can the PWM-120-48DA be controlled by a DALI building automation system?
Yes. The PWM-120-48DA has a DALI interface that allows it to be individually addressed and dimmed by any IEC 62386-compliant DALI controller or building management system. This makes it a standard choice for commercial 48V LED installations requiring centralised control.
Is the PWM-120-48DA waterproof enough for outdoor use?
Yes. The IP67 rating certifies protection against dust and temporary submersion up to 1 metre, making it suitable for outdoor signage cabinets, building facade lighting, and covered wet-area installations. Operating temperature range is -40°C to +90°C.
How many meters of 48V LED strip can the PWM-120-48DA power?
The driver supplies up to 120W at 48V and 2.5A. To find the maximum strip length, divide 120W by the strip's rated watt-per-meter figure — a 15 W/m strip, for example, allows up to 8 m. Confirm your strip's rated power per meter before planning the run.
Is the PWM-120-48DA suitable for DALI-controlled museum or gallery display lighting at 48V?
Yes. Museum and gallery lighting often requires precise, programmable dimming scenes, which DALI supports natively. The PWM-120-48DA's DALI interface integrates into such systems, and the PWM-style output produces smooth, artifact-free dimming on 48V LED strips.
Can I use the PWM-120-48DA in a DALI Zone controlling multiple fixtures?
Yes. DALI allows up to 64 individually addressed devices per bus, and the PWM-120-48DA is DALI-addressable. Multiple drivers can operate in the same DALI zone while responding to individual addressing or group commands from the controller.
What is the key difference between the PWM-120-48DA and PWM-120-48?
Both are 120W, 48V, 2.5A drivers with IP67 rating and identical physical dimensions. The PWM-120-48 uses built-in 3-in-1 dimming (PWM signal, 0–10V, resistance); the PWM-120-48DA replaces that with a DALI interface for addressable DALI network integration.
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Other PWM-120 Models
10 other models| Model | Power | Voltage | Current | IP Rating | |
|---|---|---|---|---|---|
| Mean Well PWM-120-24DA2 Power Supply 120W 24V DALI2 5A | 120W | 24V | 5A | IP67 | View |
| Mean Well PWM-120-24DA Power Supply 120W 24V - DALI 5A | 120W | 24V | 5A | IP67 | View |
| Mean Well PWM-120-12DA2 Power Supply 120W 12V DALI2 10A | 12W | 12V | 10A | IP67 | View |
| Mean Well PWM-120-48 Power Supply 120W 48V - Dimmable 2.5A | 120W | 48V | 2.5A | IP67 | View |
| Mean Well PWM-120-36DA Power Supply 120W 36V - DALI 3.4A | 120W | 36V | 3.4A | IP67 | View |
| Mean Well PWM-120-36 Power Supply 120W 36V - Dimmable 3.4A | 120W | 36V | 3.4A | IP67 | View |
| Mean Well PWM-120-24KN AC-DC Single output LED driver Constant Voltage (CV) 5A | 120W | 24V | 5A | IP67 | View |
| Mean Well PWM-120-24BLE AC-DC Single output LED driver Constant Voltage (CV) | 120W | 24V | 5A | — | View |
| Mean Well PWM-120-24 Power Supply 120W 24V - Dimmable 5A | 120W | 24V | 5A | IP67 | View |
| Mean Well PWM-120-12KN AC-DC Single output LED driver Constant Voltage (CV) 10A | 120W | 12V | 10A | IP67 | View |
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