Mean Well HLG-240H-48AB Power Supply - Adjustable and Dimmable

Name: Mean Well HLG-240H-48AB Power Supply 240W 48V - Adjustable and Dimmable 5A
Brand: Mean Well
SKU: HLG-240H-48AB
Price: 81.81 USD
Availability: InStock

Overview

HLG-240H-48AB is the 48V output model of this series: rated current 5A, rated power 240W, typical efficiency 93%.

HLG-240H series is a 240W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-240H operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 93.5%, with the fanless design, the entire series is able to operate for -40℃ ~ +90℃ case temperature under free air convection. The design of metal housing and IP67/IP65 ingress protection level allows this series to fit both indoor and outdoor applications. HLG-240H is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.

Features

Constant Voltage + Constant Current mode output
Metal housing with class I design
IP67 / IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming
Typical lifetime > 62000 hours
7 years warranty

Specifications

HLG-240H-48ABSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

DC VOLTAGE: 48V
CONSTANT CURRENT REGION^Note.4: 24 ~ 48V
RATED CURRENT: 5A
RATED POWER: 240W
RIPPLE & NOISE (max.)^Note.2: 250mVp-p
VOLTAGE ADJ. RANGE: 44.8 ~ 51.2V
CURRENT ADJ. RANGE: 2.5 ~ 5A
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 1000ms,80ms/115VAC 500ms,80ms/230VAC
HOLD UP TIME (Typ.): 15ms / 115VAC, 230VAC

INPUT

VOLTAGE RANGE^Note.5: 90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.98/115VAC, PF≧0.95/230VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20% (@ load≧50% / 115VAC,230VAC; @ load≧75% / 277VAC) (Please refer to " TOTAL HARMONIC DISTORTION (THD) " section)
EFFICIENCY (Typ.): 93%
AC CURRENT (Typ.): 4A / 115VAC 2A / 230VAC 1.2A / 277VAC
INRUSH CURRENT (Typ.): COLD START 75A(twidth=570μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 2 units (circuit breaker of type B) / 4 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

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: 55 ~ 63V
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

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 ~ 50℃)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL1012, CAN/CSA-C22.2 No. 107.1-01, UL8750(type”HL”), CSA C22.2 No. 250.0-08; BS EN/EN/AS/NZS 61347-1, BS EN/EN/AS/NZS 61347-2-13 independent (except for HLG-240H C type); IEC/UL/BS EN/EN 62368-1(except for AB,D type), UL8750;GB/T19510.1,GB/T19510. 213(except for C-type); IP65 or IP67;J61347-1,J61347-2-13 (except for C,D-type) , BIS IS15885( for 48V only), EAC TP TC 004,KC61347-1,KC61347-2-13 (except for AB,C,D-type) approved
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC I/P-FG:2KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: Compliance to BS EN/EN55015, BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2 Class C (@ load≧50%) ; BS EN/EN61000-3-3,GB/T 17743 , GB17625.1,EAC TP TC 020;KC KN15,KN61547(except for AB,C,D-type)
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN61547, BS EN/EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV) EAC TP TC 020;KC KN15,KN61547(except for AB,C,D-type)

OTHERS

MTBF: 2015.1K hrs min. Telcordia SR-332 (Bellcore) ; 176.4K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 244.2*68*38.8mm (L*W*H)(HLG-240H-Blank/A/B) 251*68*38.8mm (L*W*H)(HLG-240H C-Type)
PACKING: 1.3Kg; 12pcs/16.6Kg/0.84CUFT(HLG-240-Blank/A/B) 1.23Kg; 12pcs/15.8Kg/1.16CUFT(HLG-240 C-Type)

Test conditions and notes14

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
3. Tolerance : includes set up tolerance, line regulation and load regulation.
4. Please refer to "DRIVING METHODS OF LED MODULE".
5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
6. 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.
7. 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)
8. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED driver can only be used behind a switch without permanently connected to the mains.
9. This series meets the typical life expectancy of >62,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
11. 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).
12. 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
13. For A/AB type need to consider build in using to comply with Type HL application.
14. Products sourced from the Americas regions may only have the UL, CE and UKCA logos. Please contact your MEAN WELL sales for more information.

Technical drawings

HLG-240H-48AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-240H-48AB DIMMING OPERATION — DIMMING OPERATION

HLG-240H-48AB Illustration (page 5) — Illustration (page 5)

HLG-240H-48AB STATIC CHARACTERISTICS — STATIC CHARACTERISTICS

HLG-240H-48AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-240H-48AB MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

HLG-240H-48AB Dimensions (mm) — Dimensions (mm)

HLG-240H-48AB WATERPROOF CONNECTION — WATERPROOF CONNECTION

Typical applications

LED street lighting
LED high-bay lighting
Parking space lighting
LED fishing lamp
LED greenhouse lighting
Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Downloads

Certificates3

CB Certificate (HLG-100-185H)(EN) PDF Download

TUV Certificate (HLG-240H)(EN) PDF Download

EMC Certificate(HLG-240H)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-240H-48AB to power 48V LED strip lighting in a commercial canopy or covered walkway?

Yes. The HLG-240H-48AB provides 240W at 48V and is IP65 water-resistant, which protects against dust and low-pressure water jets. It is well suited for covered outdoor areas such as canopies, walkways, and semi-enclosed signage enclosures where 48V LED strips are used. The built-in dimming input also lets you adjust brightness on-site.

Is the HLG-240H-48AB suitable for dimming 48V LED signage from a building management system?

Yes. The AB suffix indicates both adjustable output and a 1-10V/PWM dimming interface. You can pair with the HLG-240H-48AB to a BMS or lighting controller that outputs a 1-10V or PWM signal to dim the 48V LED signage remotely. The adjustable potentiometer also allows manual fine-tuning of voltage and current.

Can I power 48V LED high-bay fixtures with the HLG-240H-48AB in a warehouse?

Yes. At 240W and 48V with 5A output, the HLG-240H-48AB can drive 48V high-bay LED fixtures up to 240W total. The constant-current mode with a CC range of 24-48V accommodates LED modules with varying forward voltages. The dimming input allows integrating the driver into an occupancy-based lighting control scheme.

How many meters of 48V LED strip can the HLG-240H-48AB support?

That depends on the strip's rated power per meter. The HLG-240H-48AB supplies up to 240W at 48V. For example, if your 48V strip draws 14.4W per meter, you could run up to 240 / 14.4 = 16.6 meters. Always check your strip's rated power per meter and keep total wattage at or below 240W.

Can the HLG-240H-48AB be mounted in a damp location or semi-enclosed outdoor cabinet?

Yes. The IP65 rating protects against dust ingress and low-pressure water jets from any direction, making it suitable for damp locations, ventilated outdoor cabinets, and covered canopy installations. For direct rain exposure or standing water, consider the IP67-rated HLG-240H-48B instead.

What is the difference between the HLG-240H-48, 48A, 48AB, and 48B variants?

All four share 240W / 48V / 5A core specs. The base HLG-240H-48 has fixed output and IP67 waterproof rating. The -48A adds output voltage/current adjustment via potentiometer (IP65). The -48AB adds both adjustment and 1-10V/PWM dimming input (IP65). The -48B provides dimming input only and retains IP67 waterproof rating.

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Mean Well HLG-240H-48AB Power Supply 240W 48V - Adjustable and Dimmable 5A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Technical drawings

Typical applications

Downloads

Certificates3

Catalogues1

FAQ

Payment & Security

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Mean Well HLG-240H-48AB Power Supply 240W 48V - Adjustable and Dimmable 5A

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