Mean Well NPF-120D-48 120W 48V Power Supply - Dimmable

Name: Mean Well NPF-120D-48 Power Supply 120W 48V - Dimmable 2.5A
Brand: Mean Well
SKU: NPF-120D-48
Price: 53.32 USD
Availability: InStock

Overview

NPF-120D-48 is the model of this series: rated current 2.5A, rated power 120W, typical efficiency 90%.

NPF-120D series is a 120W AC/DC LED driver featuring the constant current mode output. NPF-120D 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℃~+90℃ 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-120D 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
Standby power consumption <0.5W
IP67 rating for indoor or outdoor installations
Function options: 3 in 1 dimming (dim-to-off); Auxiliary DC output
Typical lifetime >50000hours
5 years warranty

Specifications

NPF-120D-48Specifications from the official datasheet (2026-02-09 edition)

OUTPUT

RATED CURRENT: 2.5A
RATED POWER: 120W
CONSTANT CURRENT REGION: 28.8 ~ 48V
CURRENT RIPPLE: 5.0% max. @rated current
CURRENT TOLERANCE: ±5.0%
AUXILIARY DC OUTPUT^Note.4: Nominal 12V(deviation 11.4~12.6V)@0.2A for BE-Type only
SET UP TIME^Note.3: 500ms/115VAC, 230VAC

INPUT

VOLTAGE RANGE^Note.2: 90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.97/115VAC, 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.) BLANK-TYPE: 90%
EFFICIENCY (Typ.) BE-TYPE^Note.5: 89%
AC CURRENT (Typ.): 1.3A / 115VAC 0.65A / 230VAC 0.55A / 277VAC
INRUSH CURRENT(Typ.): COLD START60A(twidth=520μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. NO. of PSUs on 16A CIRCUIT BREAKER: 4 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: 54 ~ 60V 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 ~ +90℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
MAX. CASE TEMP.: Tcase=+90℃
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 40℃)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL8750(type”HL”), 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: 2632.6K hrs min. Telcordia SR-332 (Bellcore) ; 233.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 191*63*37.5mm (L*W*H)
PACKING: 0.97Kg; 15pcs/15.6Kg/0.87CUFT

Test conditions and notes12

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
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. The Auxiliary DC output is defined between AUX+ and DIM-.
5. The efficiency for BE-Type is measured when the Auxiliary DC output is 100% loaded at 12V, 0.2A.
6. 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)
7. 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.
8. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
9. 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).
10. 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
11.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.
12.BE-type is used for any light source that exempt from the ErP-Directive (EU) 2019/2020 requirement, for example this model could be use for signalling products(including, but not limited to road-, railway-, marineorair traffic-signalling , traffic control or airfield lamps) .

Technical drawings

NPF-120D-48 BLOCK DIAGRAM — BLOCK DIAGRAM

NPF-120D-48 DIMMING OPERATION — DIMMING OPERATION

NPF-120D-48 OUTPUT LOAD vs TEMPERATURE — OUTPUT LOAD vs TEMPERATURE

NPF-120D-48 STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

NPF-120D-48 TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

NPF-120D-48 MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

NPF-120D-48 Recommend Mounting Direction — Recommend Mounting Direction

Typical applications

LED panel lighting
LED downlight
LED decorative lighting
Moving sign
Type "HL" for use in Class I, Division 2 hazardous (Classified) location

Downloads

Certificates6

UL Certificate (NPF-120D)(EN) PDF Download

CB Certificate (NPF-120D)(EN) PDF Download

EMC Certificate (NPF-120D)(EN) PDF Download

ENEC Certificate (NPF-120D)(EN) PDF Download

ErP Certificate (NPF-120D)(EN) PDF Download

CCC Certificate(NPF-120D)(CN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

What dimming protocols are supported by the NPF-120D-48?

The NPF-120D-48 includes built-in 3-in-1 dimming, accepting 0–10VDC, 10V PWM signal, and resistance (potentiometer) inputs. These cover the most common lighting control interfaces used in commercial building management systems and outdoor lighting controllers.

Can the NPF-120D-48 be used in outdoor or damp environments?

Yes. The NPF-120D-48 is rated IP67 for dust and temporary submersion protection and is rated for a case temperature (Tcase) of -40°C to +90°C, with output derating at higher temperatures. It is suitable for installation inside outdoor luminaires, landscape lighting fixtures, and industrial enclosures.

What 48V LED systems benefit from the NPF-120D-48's dimmable output?

The NPF-120D-48 provides 2.5A (120W) in constant-current mode with a CC range of 28.8–48V. It suits dimmable 48V LED high-bay fixtures, outdoor area lights, tunnel lighting, and industrial work-lighting systems where remote brightness control via 0–10V or PWM is specified.

How does the NPF-120D-48 compare to the NPF-120D-54?

Both have IP67, 3-in-1 dimming, the same 191.0 × 63.0 × 37.5 mm dimensions, and 0.97 kg weight. NPF-120D-48 outputs 48V at 2.5A (120W, CC range 28.8–48V); NPF-120D-54 outputs 54V at 2.3A (124.2W, CC range 32.4–54V). The choice depends on whether your LED string requires a 48V or 54V constant-current source.

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Mean Well NPF-120D-48 Power Supply 120W 48V - Dimmable 2.5A

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Technical drawings

Typical applications

Downloads

Certificates6

Catalogues1

FAQ

Payment & Security

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Mean Well NPF-120D-48 Power Supply 120W 48V - Dimmable 2.5A

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Typical applications

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