Mean Well ELG-240-54AB 240W 54V Power Supply - Adjustable & Dimmable

Name: Mean Well ELG-240-54AB Power Supply 240W 54V - Adjustable and Dimmable 4.45A
Brand: Mean Well
SKU: ELG-240-54AB
Price: 61.55 USD
Availability: InStock

Overview

ELG-240-54AB is the 54V output model of this series: rated current 4.45A, typical efficiency 93%.

ELG-240 series is a 240W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-240 operates from 100～305VAC and offers models with different rated voltage ranging between 24V and 54V. Thanks to the high efficiency up to 93%, 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. ELG-240 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 design with functional Ground
Built-in active PFC function
No load / Standby power consumption <0.5W
IP67 / IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming (dim-to-off) ; Smart timer dimming; DALI
Typical lifetime>50000 hours
5 years warranty

Specifications

ELG-240-54ABSpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE: 54V
CONSTANT CURRENT REGION^Note.2: 27 ~ 54V
RATED CURRENT: 4.45A
RATED POWER 200VAC ~ 305VAC: 240.3W
RATED POWER 100VAC ~ 180VAC: 180.36W
RIPPLE & NOISE (max.)^Note.3: 350mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 50 ~ 57V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 2.23 ~ 4.45A
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 500ms, 100ms/230VAC, 1000ms, 100ms/115VAC
HOLD UP TIME (Typ.): 10ms/ 230VAC 10ms/ 115VAC

INPUT

VOLTAGE RANGE^Note.5: 100 ~ 305VAC 142 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR: PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20%(@load≧50%/115VC,230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.): 93%
AC CURRENT: 2.2A / 115VAC 1.5A / 230VAC 1.2A/277VAC
INRUSH CURRENT(Typ.): COLD START 60A(twidth=510μs 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: <0.75mA / 277VAC
NO LOAD / STANDBY POWER CONSUMPTION^Note.7: No load power consumption <0.5W for Blank / A -Type Standby power consumption <0.5W for B / AB / DA-Type

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: 60 ~ 67V Shut down output voltage, re-power on to recover
OVER TEMPERATURE: Shut down output 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 ~ +90℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 60℃)
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;IEC/BS EN/EN/AS/NZS 61347-1, IEC/BS EN/EN/AS/NZS 61347-2-13 independent, BS EN/EN62384; EAC TP TC 004;BIS IS15885(for 24/24A/24B/24DA/36/36A/36B/42/42A/42B/48/48A/48B/54/54A/54ADA/54B only); GB/T19510.1,GB/T19510.213; IP65 or IP67;KC61347-1,KC61347-2-13 approved
DALI STANDARDS: Compliance to IEC62386-101,102,(207 by request) for DA Type only
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC I/P-FG:2.0KVAC 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/EN61000-3-2 Class C (@load≧50%) ; BS EN/EN61000-3-3; GB/T 17743, GB17625.1;EAC TP TC 020; KC KN15,KN61547
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11; BS EN/EN61547, light industry level (surge immunity Line-Earth 6KV, Line-Line 4KV);EAC TP TC 02; KC KN15,KN61547

OTHERS

MTBF: 2391.4K hrs min. Telcordia SR-332 (Bellcore) ; 190.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 244*71*37.5mm (L*W*H)
PACKING: 1.22Kg; 12pcs / 15.2Kg / 0.72CUFT

Certifications & ratings

Type: HL

Test conditions and notes14

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Please refer to "DRIVING METHODS OF LED MODULE".
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
4. Tolerance : includes set up tolerance, line regulation and load regulation.
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. No load/standby power consumption is specified for 230VAC input.
8. 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)
9. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 70℃ 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. 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.
14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-240-54AB Block Diagram — Block Diagram

ELG-240-54AB DIMMING OPERATION — DIMMING OPERATION

ELG-240-54AB OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

ELG-240-54AB STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

ELG-240-54AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

ELG-240-54AB MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

ELG-240-54AB Dimensions (mm) — Dimensions (mm)

ELG-240-54AB ※ 3Y Model (3-wire input) — ※ 3Y Model (3-wire input)

ELG-240-54AB Recommend Mounting Direction — Recommend Mounting Direction

Typical applications

LED street lighting
LED architectural lighting
LED bay lighting
LED floodlighting
Type “HL” for use in Class I, Division 2 hazardous (Classified) location.

Downloads

Datasheet1

ELG-240-54AB datasheetELG-240-SPEC.PDF · 2026-07-06 edition PDF Download

Certificates4

CB Certificate (ELG-240)(EN) PDF Download

UL Certificate (ELG-240)(EN) PDF Download

EMC Certificate (ELG-240)(EN) PDF Download

ENEC Certificate (ELG-240)(EN) PDF Download

Test reports1

Test Report (ELG-240-54)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

What do the A and B suffixes together mean on the ELG-240-54AB?

The AB suffix combines adjustable output (A) with three-in-one dimming (B). This means the output voltage (50–57V) and current (2.23–4.45A) can be set via a built-in potentiometer, and the driver also accepts 0–10VDC, 10V PWM signal, or resistance dimming input for dynamic brightness control during operation.

Can the ELG-240-54AB be used outdoors in a location exposed to rain?

The ELG-240 series is rated IP65 or IP67, which protects against dust and water jets; only IP67 covers temporary immersion. It is suitable for sheltered outdoor luminaires and enclosed signage cabinets but should not be mounted in locations where it will be directly submerged.

Can the ELG-240-54AB drive 54V LED strips for retail display lighting with dimming?

Yes. At 240.3W and 54V (180.36W on 100–180VAC input), it can power a significant run of 54V LED strip, and the built-in three-in-one dimming allows brightness adjustment via a 0–10V control signal typical in retail lighting control systems. A 54V strip at 18W per meter would support approximately 13 meters per driver.

Is the ELG-240-54AB appropriate for landscape lighting with a DMX or 0–10V controller?

With a 0–10V controller, yes. The B-type dimming interface accepts a 0–10VDC input, which works with 0–10V landscape lighting controllers; DMX is not among its listed dimming inputs (0–10VDC, 10V PWM, resistance). The IP65/IP67 rating provides protection for enclosed outdoor fixtures in most landscape applications.

How much LED strip can the ELG-240-54AB support at 54V?

The ELG-240-54AB outputs 240.3W at 54V and 4.45A on 200–305VAC input (180.36W on 100–180VAC). At 20W per meter of strip that is approximately 12 meters; at 12W per meter it is around 20 meters. Check your strip's rated power per meter and do not exceed the rated load for your input voltage.

Can the ELG-240-54AB be used in stage or theatrical LED lighting with a dimmer board?

Yes, if the control system outputs one of its three dimming signals: 0–10VDC, 10V PWM (100Hz–3KHz) or resistance. The minimum dimming level is about 8%, and output current is not defined between 0% and 8%. At 240.3W it provides enough capacity for a large panel or strip fixture running on 54V.

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Model	Power	Voltage	Current	IP Rating
Mean Well ELG-240-54 Power Supply 240W 54V 4.45A	240.3W	54V	4.45A	IP67	View

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Mean Well ELG-240-54AB Power Supply 240W 54V - Adjustable and Dimmable 4.45A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Certifications & ratings

Technical drawings

Typical applications

Downloads

Datasheet1

Certificates4

Test reports1

Catalogues1

FAQ

Payment & Security

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Mean Well ELG-240-54AB Power Supply 240W 54V - Adjustable and Dimmable 4.45A

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