What dimming methods does the NPF-40D-42 support?

The NPF-40D-42 features built-in 3-in-1 dimming accepting PWM signal, 1–10V analog, and resistance (potentiometer) control. All three interfaces are integrated into the driver, covering the most common lighting control protocols used in commercial and industrial projects.

Is the NPF-40D-42 rated for outdoor or wet installations?

Yes. The NPF-40D-42 is IP67 rated and operates from -40°C to +85°C. Its 150.0 × 53.0 × 35.0 mm sealed plastic housing can be installed directly inside compact outdoor luminaires and damp industrial enclosures.

What LED applications suit the NPF-40D-42's 42V dimmable output at 40W?

The NPF-40D-42 supplies 42V DC at 0.96A (40.32W) in constant-current mode (CC range 25–42V) with 3-in-1 dimming. It suits compact dimmable 42V LED modules in small outdoor accent fixtures, display or shelf lighting with 1–10V controllers, and low-power 42V industrial work lights requiring brightness control.

How does the NPF-40D-42 compare to the NPF-40D-36 and NPF-40D-48?

All three share IP67, 3-in-1 dimming, the 150.0 × 53.0 × 35.0 mm housing, and 0.49 kg weight. NPF-40D-36 is 36V/1.12A (40.32W, CC 21–36V); NPF-40D-42 is 42V/0.96A (40.32W, CC 25–42V); NPF-40D-48 is 48V/0.84A (40.32W, CC 28–48V). Select based on your LED string's rated voltage.

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well NPF-40D-42 Power Supply 40W 42V - Dimmable

Name: Mean Well NPF-40D-42 Power Supply 40W 42V - Dimmable
Brand: Mean Well
SKU: NPF-40D-42
Price: 30.15 USD
Availability: InStock

fully isolated plastic caseIP67Class II design without FGbuilt-in 3 in 1 dimming

SKU:

NPF-40D-42

$30.15 USD ~~$103.50~~

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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

Brand

Mean Well
Series

NPF Series
Power Rating

40.32 Watt
Output Voltage

42 Volt
Rated Current

0.96 Ampere
Input Voltage

90V~305V
No of Output

1
Dimming Control

0-10V,10V PWM,Resistance
Standards Met

CB,CCC,CE,EAC,ENEC,UL
Operation Mode

Constant Current,Constant Voltage
Operating Temperature

-40°C~85°C
Warranty

5 Year
Length

5.91 in
Width

2.09 in
Height

1.38 in
Weight

1.08 lb

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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-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
Mean Well NPF-40D-12 Power Supply 40W 12V - Dimmable	40.08W	12V	3.34A	IP67	$30.15	View

Mean Well