Over 15 years experience of providing support of MEAN WELL Power Supplies
Image shown is a representation only. Exact specifications should be obtained from the product datasheet.
Mean Well NPF-40D-20 Power Supply 40W 20V - Dimmable
Notify me when it's back in stock
Your order will be processed within 24 hours
Mean Well NPF-40D-20 Power Supply 40W 20V - Dimmable
The NPF-40D 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 / Over voltage / Over temperature
- ✓ Active PFC — meets international energy efficiency regulations
- ✓ Safety approvals: UL8750(type”HL”), CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13, EN62384 independent, IP67
- ✓ 3 years warranty
-
BrandMean Well
-
SeriesNPF Series
-
Power Rating40 Watt
-
Output Voltage20 Volt
-
Rated Current2 Ampere
-
Input Voltage90V~305V
-
No of Output1
-
Dimming Control0-10V,10V PWM,Resistance
-
Standards MetCB,CCC,CE,EAC,ENEC,UL
-
Operation ModeConstant Current,Constant Voltage
-
Operating Temperature-40°C~85°C
-
Warranty5 Year
-
Length5.91 in
-
Width2.09 in
-
Height1.38 in
-
Weight1.08 lb
::specification::
Frequently Asked Questions
What dimming protocols does the NPF-40D-20 accept?
The NPF-40D-20 supports 3-in-1 dimming: PWM signal, 1–10V analog, and resistance (potentiometer) control. These are built into the driver without requiring external adapters.
Is the NPF-40D-20 rated for outdoor or wet-location installations?
Yes. The NPF-40D-20 is IP67 rated and operates from -40°C to +85°C. It can be installed inside outdoor low-wattage fixtures and damp enclosures without supplemental weatherproofing of the driver body.
What LED applications match the NPF-40D-20's dimmable 20V 40W output?
The NPF-40D-20 delivers 20V DC at 2A (40W) in constant-current mode (CC range 12–20V) with 3-in-1 dimming. It suits dimmable 20V LED accent and display lighting with 1–10V scene control, compact retail fixtures, and small architectural installations requiring smooth output adjustment.
How does the NPF-40D-20 compare to the NPF-40D-24?
Both share IP67, 3-in-1 dimming, the 150.0 × 53.0 × 35.0 mm housing, and 0.49 kg weight. NPF-40D-20 outputs 20V at 2A (40W, CC range 12–20V); NPF-40D-24 outputs 24V at 1.67A (40.08W, CC range 14–24V). Select the model whose voltage matches your LED module.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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-15 Power Supply 40W 15V - Dimmable | 40.08W | 15V | 2.67A | IP67 | $28.40 | View |
| Mean Well NPF-40D-12 Power Supply 40W 12V - Dimmable | 40.08W | 12V | 3.34A | IP67 | $30.15 | View |
Please log in to write a review.
Write a review
Reviews are checked before publishing. By submitting you confirm this is your genuine experience with this product.
Submitting your review…
It's published and now helps other buyers.
We're checking it and it'll appear shortly.
Please try again.
