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Mean Well NPF-40D-12 Power Supply 40W 12V - Dimmable
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Mean Well NPF-40D-12 Power Supply 40W 12V - Dimmable
Description
Description
Features
| Universal AC input (up to 305VAC) / Full range |
| Built-in active PFC function |
| High efficiency up to 90% |
| No load power consumption <0.5W |
| Fully isolated plastic case with IP67 level |
| Class 2 power unit |
| Isolation class II, no F.G. |
| Protections: Short circuit / Over current / Over voltage / Over temperature |
| Suitable for dry, damp, and wet location |
| Cooling by free air convection |
| 5 years warranty |
General Specification
| AC input voltage range | 90~305VAC ; 127~431VDC |
| AC inrush current (max.) | Cold start, 50A at 230VAC |
| Over current protection | 95% ~108% constant current, auto-recovery |
| Over voltage protection | 110%~140% rated output voltage |
| Withstand voltage | I/P - O/P: 3.75kVAC |
| Working temperature | -40~+85ºC (refer to output derating curve) |
| Safety standards | UL8750, ENEC EN61347-1, EN61347-2-13 , EN62384 independent approved; Design refer to EN60335-1 |
| EMC standards | EN55015, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2, 3, 4, 5, 6, 8,11, EN61547 |
| Connection Input | UL rated, SJTW 18AWGx2C (30cm) |
| Connection Output | UL rated, UL2464 18AWGx2C (30cm) + 22AWGx2C (30cm) |
| Dimension (LxWxH)(mm) | 150x 53x 35 |
Specifications
Specifications
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BrandMean Well
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SeriesNPF Series
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Power Rating40.08 Watt
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Output Voltage12 Volt
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Rated Current3.34 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 Current,Constant 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
File Downloads
File Downloads
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Payment & Security
Payment methods
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Frequently Asked Questions
What dimming methods does the NPF-40D-12 support?
The NPF-40D-12 includes built-in 3-in-1 dimming: PWM signal, 1–10V analog, and resistance (potentiometer) control. All three are available without external modules, enabling connection to commercial lighting controllers or simple potentiometer-based manual controls.
Is the NPF-40D-12 rated for outdoor or damp-location use?
Yes. The NPF-40D-12 is IP67 rated and operates from -40°C to +85°C. Its compact 150.0 × 53.0 × 35.0 mm sealed housing is suitable for outdoor landscape luminaires, horticultural enclosures, and damp indoor installations.
What LED applications benefit from the NPF-40D-12's dimmable 12V 40W output?
The NPF-40D-12 delivers 12V DC at 3.34A (40.08W) with 3-in-1 dimming and a CC range of 7–12V. It suits dimmable 12V LED accent lighting, small hospitality or retail display strips with 1–10V scene control, and compact architectural fixtures where manual brightness adjustment via potentiometer is needed.
How does the NPF-40D-12 compare to the non-dimmable NPF-40-12?
Both output 12V at 3.34A (40.08W) with IP67, the same 150.0 × 53.0 × 35.0 mm housing, and 0.49 kg weight. The NPF-40D-12 adds built-in 3-in-1 dimming (PWM, 1–10V, resistance) not available on the NPF-40-12. For fixed-brightness 12V applications, the NPF-40-12 is the simpler option.
Other NPF-40D Models
8 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well NPF-40D-54 Power Supply 40W 54V - Dimmable | 41.04W | 54V | 0.76A | IP67 | $30.15 | View |
| Mean Well NPF-40D-48 Power Supply 40W 48V - Dimmable | 40.32W | 48V | 0.84A | IP67 | $30.15 | View |
| Mean Well NPF-40D-42 Power Supply 40W 42V - Dimmable | 40.32W | 42V | 0.96A | IP67 | $30.15 | View |
| Mean Well NPF-40D-36 Power Supply 40W 36V - Dimmable | 40.32W | 36V | 1.12A | IP67 | $28.40 | View |
| Mean Well NPF-40D-30 Power Supply 40W 30V - Dimmable | 40.2W | 30V | 1.34A | IP67 | $30.15 | View |
| Mean Well NPF-40D-24 Power Supply 40W 24V - Dimmable | 40.08W | 24V | 1.67A | IP67 | $30.15 | View |
| Mean Well NPF-40D-20 Power Supply 40W 20V - Dimmable | 40W | 20V | 2A | IP67 | $26.54 | View |
| Mean Well NPF-40D-15 Power Supply 40W 15V - Dimmable | 40.08W | 15V | 2.67A | IP67 | $28.40 | View |
