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Mean Well PWM-40-24 Power Supply 40W 24V - Dimmable
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Mean Well PWM-40-24 Power Supply 40W 24V - 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 Voltage24 Volt
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Rated Current1.67 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-40-24 power 24V LED strips in an outdoor installation?
Yes. The PWM-40-24 carries an IP67 rating, making it suitable for outdoor and wet-location use where moisture exposure is expected. Its -40°C to +85°C operating range supports installation in most outdoor environments year-round.
How many meters of 24V LED strip can the PWM-40-24 support?
The PWM-40-24 supplies a maximum of 40W at 24V. Divide 40W by your strip's power consumption per meter — for example, a 14W/m strip allows approximately 2.8 meters. Always verify your strip's actual rated watts per meter before sizing the run.
Is the PWM-40-24 a good fit for dimmable 24V under-cabinet or display lighting?
Yes. The built-in 3-in-1 dimming supports 0–10V analog, PWM signal, and resistance control, allowing smooth brightness adjustment for 24V under-cabinet lighting and display case applications. The 40W output is adequate for short or medium strip runs in these settings.
Can I install the PWM-40-24 in a non-metallic or sealed junction box?
Yes. The Class II design without a functional earth ground (FG) connection and the fully isolated plastic case allow installation in non-metallic enclosures and sealed junction boxes without a grounding conductor.
Is the PWM-40-24 suitable for powering 24V LED architectural accent lighting on a building facade?
Yes. The IP67 waterproof rating and wide operating temperature range of -40°C to +85°C make the PWM-40-24 appropriate for facade-mounted 24V LED accent lighting exposed to rain and temperature extremes. Its 40W capacity can drive short runs of high-efficiency accent strip.
What dimming protocols does the PWM-40-24 support compared to the DA and KN variants?
The PWM-40-24 uses built-in 3-in-1 dimming (0–10V, PWM signal, and resistance). The DA suffix models add DALI protocol support, the DA2 suffix adds DALI-2 support, and the KN suffix adds KNX protocol support without requiring a separate KNX-DALI gateway. All variants in the 40W range share the same 40W output.
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Other PWM-40 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well PWM-40-48 Power Supply 40W 48V - Dimmable | 40W | 48V | 0.84A | IP67 | $30.15 | 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 |
