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Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable
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Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable
The PWM-40 is a 40W Mean Well DIN rail power converter with a 150mm profile (input range: 90~305VAC, operating temperature: -40~+80℃).
Key Features
- ✓ 150mm width — DIN rail TS-35 compatible
- ✓ Input voltage range: 90~305VAC
- ✓ 3.75KVAC reinforced I/O isolation
- ✓ 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” ), CSA C22.2 No. 250.13-12; ENEC EN61347-1, EN61347-2-13 independent,EN62384, IP67
- ✓ 3 years warranty
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BrandMean Well
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SeriesPWM Series
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Power Rating40 Watt
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Output Voltage48 Volt
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Rated Current0.84 Ampere
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Input Voltage90V~305V
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No of Output1
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Dimming Control0-10V,10V PWM,Resistance
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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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Length5.91 in
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Width2.09 in
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Height1.38 in
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Weight1.08 lb
::specification::
Frequently Asked Questions
Can the PWM-40-48 be installed in outdoor or moisture-prone environments?
Yes. The IP67 rating on the PWM-40-48 means it is fully dustproof and can handle temporary water immersion, making it suitable for outdoor enclosures, exterior signage, and wet-rated fixture applications. Its -40°C to +85°C operating temperature accommodates cold and warm climates alike.
How much 48V LED strip can the PWM-40-48 support?
The PWM-40-48 provides a maximum of 40W at 48V, delivering 0.84A. Divide 40W by your strip's rated wattage per meter to find the maximum run length — for example, a 10W/m strip supports up to 4 meters. Always confirm your strip's actual power consumption per meter.
Is the PWM-40-48 suitable for powering 48V LED strip in commercial signage?
Yes. The PWM-40-48 supports PWM-style dimming output and accepts the 3-in-1 dimming interface (0–10V, PWM signal, and resistance), making it appropriate for dimmable 48V LED signage and illuminated display applications. The IP67 housing also allows exterior sign mounting.
Can I use the PWM-40-48 for long-run 48V LED strip installations to minimize voltage drop?
Yes. Running 48V strips instead of 12V or 24V reduces current draw for the same wattage — the PWM-40-48 draws only 0.84A at full load — which lowers resistive losses over longer cable runs. This makes it a practical choice when installing strip lighting over distances where voltage drop would be problematic at lower voltages.
Is the PWM-40-48 a good choice for dimmable 48V LED cove or architectural lighting?
Yes. The built-in 3-in-1 dimming and constant voltage output make the PWM-40-48 well suited for cove, cornice, and architectural accent lighting using 48V LED strip. The compact 150 × 53 × 35 mm housing allows it to be concealed within the cove structure.
What is the difference between the PWM-40-48 and the higher-wattage 48V PWM models?
The PWM-40-48 provides 40W at 48V (0.84A). Higher-wattage 48V options in the series include the PWM-60-48 at 60W (1.25A), the PWM-90-48 at 90W (1.88A), the PWM-120-48 at 120W (2.5A), and the PWM-200-48 at 200W (4.17A). Choose based on the total wattage of your 48V load.
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Other PWM-40 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PWM-40-24 Power Supply 40W 24V - Dimmable | 40W | 24V | 1.67A | IP67 | $28.40 | View |
| Mean Well PWM-40-36 Power Supply 40W 36V - Dimmable | 40W | 36V | 1.12A | IP67 | $30.15 | View |
| Mean Well PWM-40-12 Power Supply 40W 12V - Dimmable | 40W | 12V | 3.34A | IP67 | $28.40 | View |
