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 |
