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Mean Well NPF-90D-20 Power Supply 90W 20V - Dimmable 4.5A

fully isolated plastic caseIP67Class II design without FGbuilt-in 3 in 1 dimming
SKU NPF-90D-20
$44.69 USD
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Model

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NPF-90D-20
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Overview

NPF-90D-20 is the model of this series: rated current 4.5A, rated power 90W, typical efficiency 90%.

NPF-90D series is a 90W AC/DC LED driver featuring the constant current mode output. NPF-90D operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 90%, with the fanless design, the entire series is able to operate for -40~+85℃ case temperature under free air convection. The entire series is rated with IP67 ingress protection level and is suitable to work for a variety of applications at dry, damp or wet locations. NPF-90D is equipped with the 3 in 1 dimming function so as to provide the design flexibility for LED lighting system.

Features

  • Plastic housing with class II design
  • Built-in active PFC function
  • Class 2 power unit (except NPF-90D-12/15)
  • Standby power consumption <0.5W
  • IP67 rating for indoor or outdoor installations
  • Function: 3 in 1 dimming (dim-to-off)
  • Typical lifettime >50000hours
  • 5 years warranty

Specifications

NPF-90D-20Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

RATED CURRENT
4.5A
RATED POWER
90W
CONSTANT CURRENT REGION
12 ~ 20V
CURRENT RIPPLE
5.0% max. @rated current
CURRENT TOLERANCE
±5.0%
SET UP TIMENote.3
500ms/115VAC, 230VAC

INPUT

VOLTAGE RANGENote.2
90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF≧0.98/115VAC, PF≧0.96/230VAC, PF≧0.94/277VAC@full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION
THD< 20%(@load≧60%/115VC, 230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY(Typ.)
90%
AC CURRENT (Typ.)
0.95A / 115VAC 0.5A / 230VAC 0.4A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 60A(twidth=550μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. NO. of PSUs on 16A CIRCUIT BREAKER
3 units (circuit breaker of type B) / 6 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT
<0.25mA / 277VAC
STANDBY POWER CONSUMPTION
<0.5W

PROTECTION

OVER CURRENT
95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT
Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
23 ~ 27V Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.
Tcase=-40 ~ +85℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
MAX. CASE TEMP.
Tcase=+85℃
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS
Ul8750, CSA C22.2 No. 250.13-12, ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384 independent,EAC TP TC 004, GB/T19510.1,GB/T19510.213, IP67 approved ;Design refer to BS EN/EN60335-1
WITHSTAND VOLTAGE
I/P-O/P:3.75KVAC
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C (@ load≧60%) ; BS EN/EN61000-3-3; GB/T 17743, GB17625.1,EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11; BS EN/EN61547, light industry level(surge immunity Line-Line 2KV);EAC TP TC 020

OTHERS

MTBF
2749.1K hrs min. Telcordia SR-332 (Bellcore) ; 231.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
171*63*37.5mm (L*W*H)
PACKING
0.77Kg; 18pcs/14.9Kg/0.82CUFT
Test conditions and notes10
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
  2. 2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
  3. 3. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
  4. 4. The standby power consumption is specified for 230VAC.
  5. 5. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
  6. 6. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
  7. 7. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
  8. 8. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
  9. 9. For any application note and IP water proof function installation caution, please refer our user manual before using. https://www.meanwell.com/Upload/PDF/LED_EN.pdf
  10. 10. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED power supply can only be used behind a switch without permanently connected to the mains.

Technical drawings

NPF-90D-20 BLOCK DIAGRAM
BLOCK DIAGRAM
NPF-90D-20 DIMMING OPERATION
DIMMING OPERATION
NPF-90D-20 OUTPUT LOAD vs TEMPERATURE
OUTPUT LOAD vs TEMPERATURE
NPF-90D-20 STATIC CHARACTERISTIC
STATIC CHARACTERISTIC
NPF-90D-20 TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
NPF-90D-20 LIFE TIME
LIFE TIME
NPF-90D-20 MECHANICAL SPECIFICATION
MECHANICAL SPECIFICATION
NPF-90D-20 Recommend Mounting Direction
Recommend Mounting Direction

Typical applications

  • LED panel lighting
  • LED downlight
  • LED decorative lighting
  • LED tunnel lighting
  • Moving sign

Downloads

FAQ

What dimming inputs does the NPF-90D-20 accept?

The NPF-90D-20 integrates 3-in-1 dimming, accepting a 10V PWM signal, 0–10VDC, or resistance between DIM+ and DIM-, all built in without external dimming accessories.

Is the NPF-90D-20 a good match for dimmable 20V LED panels in a medical imaging facility?

The NPF-90D-20 delivers 90W at 20V with a constant current of 4.5A and built-in dimming for general LED panel lighting. Its datasheet lists only lighting safety standards (UL8750, EN61347) and no medical approvals, so it is not intended for medical equipment or medical-grade use.

How does the NPF-90D-20 differ from the NPF-60D-20?

The NPF-90D-20 is a dimmable 20V IP67 driver with 3-in-1 dimming, rated 90W at 4.5A (171.0 × 63.0 × 37.5 mm, 0.77 kg). The NPF-60D-20 is not covered by this datasheet; check its own spec sheet and select based on the LED load’s total wattage.

Can the NPF-90D-20 operate in an outdoor carport or canopy structure exposed to rain?

Yes. The NPF-90D-20 is IP67 approved and works at a case temperature (Tcase) of -40°C to +85°C with load derating at higher temperatures, making it appropriate for outdoor carport or canopy LED lighting in wet conditions.

Does the NPF-90D-20 require a ground connection?

No. The NPF-90D-20's input cable has only two conductors, AC/L (brown) and AC/N (blue), with no earth (FG) wire, so there is no ground connection to make.

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Mean Well NPF-90D-20 Power Supply 90W 20V - Dimmable 4.5A - NPF-90D-20 - powersupplymall.com
Mean Well

Mean Well NPF-90D-20 Power Supply 90W 20V - Dimmable 4.5A

$44.69 USD

NPF-90D-20 is the model of this series: rated current 4.5A, rated power 90W, typical efficiency 90%.

NPF-90D series is a 90W AC/DC LED driver featuring the constant current mode output. NPF-90D operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 90%, with the fanless design, the entire series is able to operate for -40~+85℃ case temperature under free air convection. The entire series is rated with IP67 ingress protection level and is suitable to work for a variety of applications at dry, damp or wet locations. NPF-90D is equipped with the 3 in 1 dimming function so as to provide the design flexibility for LED lighting system.

Features

  • Plastic housing with class II design
  • Built-in active PFC function
  • Class 2 power unit (except NPF-90D-12/15)
  • Standby power consumption <0.5W
  • IP67 rating for indoor or outdoor installations
  • Function: 3 in 1 dimming (dim-to-off)
  • Typical lifettime >50000hours
  • 5 years warranty

Typical applications

  • LED panel lighting
  • LED downlight
  • LED decorative lighting
  • LED tunnel lighting
  • Moving sign

Model

  • 40W 20V
  • 40W 20V Dimmable
  • 60W 20V
  • 60W 20V Dimmable
  • 90W 20V
  • 90W 20V Dimmable
  • 120W 20V
  • 120W 20V Dimmable
View product