Mean Well ELG-240-48A Power Supply 240W 48V - Adjustable

Overview

ELG-240-48A is the 48V output model of this series: rated current 5.0A, 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-240-48ASpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE: 48V
CONSTANT CURRENT REGION^Note.2: 24 ~ 48V
RATED CURRENT: 5.0A
RATED POWER 200VAC ~ 305VAC: 240W
RATED POWER 100VAC ~ 180VAC: 180W
RIPPLE & NOISE (max.)^Note.3: 250mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 44.8 ~ 51.2V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 2.5 ~ 5A
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: 54 ~ 63V 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-240-48A Block Diagram — Block Diagram

ELG-240-48A DIMMING OPERATION — DIMMING OPERATION

ELG-240-48A OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

ELG-240-48A STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

ELG-240-48A TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

ELG-240-48A MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

ELG-240-48A Dimensions (mm) — Dimensions (mm)

ELG-240-48A ※ 3Y Model (3-wire input) — ※ 3Y Model (3-wire input)

ELG-240-48A 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

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-240-48)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can the ELG-240-48A power 48V LED strip in a covered outdoor walkway?

The ELG-240 series carries an IP65 or IP67 rating, which protects against water jets from any direction—adequate for a covered outdoor walkway. It delivers 240W at 48V (180W on 100–180VAC input) over a case temperature range of -40°C to +90°C.

What does the 'A' suffix mean on the ELG-240-48A, and how is output adjusted?

The 'A' suffix means the output voltage (44.8–51.2V) and current (2.5–5A) can be trimmed via a built-in potentiometer, allowing the installer to fine-tune the output within the driver's adjustment range without external controllers. This is useful when a lighting load requires a voltage or current slightly different from the nominal 48V / 5A.

How many meters of 48V LED strip can the ELG-240-48A support?

With 240W maximum output at 48V (200–305VAC input), the driver can supply strips consuming up to 240W total; on 100–180VAC the rating is 180W. For a strip rated at 18W per meter, that equals about 13.3 meters (240 ÷ 18 ≈ 13.3 m). With 20% headroom (192W) it gives roughly 10.7 meters; verify your specific strip's power per meter.

Is the ELG-240-48A suitable for LED lighting in an indoor warehouse with occasional water splashing from forklifts?

Yes. The IP65/IP67 rating protects against water jets and heavy splashing, which covers typical splash hazards in a warehouse. The driver is specified for a case temperature up to +90°C, with a maximum ambient of 60°C at rated current in constant-current mode, which suits areas near loading docks.

Can the ELG-240-48A be used for high-bay LED fixture power in a distribution center?

Yes. The 240W output at 48V can supply multiple LED modules in a high-bay fixture array. IP65/IP67 protection handles dust and moisture present in most distribution centers, and the wide input voltage range of 100–305VAC accommodates international electrical standards (180W rating on 100–180VAC).

How does the ELG-240-48A differ from the ELG-240-48 and ELG-240-48AB at the same power level?

All three output 240W at 48V with 5A. The ELG-240-48 has no adjustment or dimming; the ELG-240-48A adds a built-in potentiometer for voltage and current adjustment; the ELG-240-48AB combines the potentiometer adjustment of the A version with 3-in-1 dimming (0–10V, PWM, resistance).

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Model	Power	Voltage	Current	IP Rating
Mean Well S-ELG-240-24-3Y Power Supply 240W 24V 10A — 3-Wire Input (with Earth)	240W	24V	10A	IP67	View
Mean Well ELG-240-24 Power Supply 240W 24V 10A	240W	24V	10A	IP67	View
Mean Well ELG-240-48 Power Supply 240W 48V 5A	240W	48V	5A	IP67	View
Mean Well ELG-240-24-3Y Power Supply 240W 24V 10A — 3-Wire Input (with Earth)	240W	24V	10A	IP67	View
Mean Well ELG-240-48A-3Y Power Supply 240W 48V - Adjustable 5A — 3-Wire Input (with Earth)	240W	48V	5A	IP65	View
Mean Well ELG-240-48DA-3Y Power Supply 240W 48V - DALI 5A — 3-Wire Input (with Earth)	240W	48V	5A	IP67	View

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Mean Well ELG-240-48A Power Supply 240W 48V - Adjustable 5A

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