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Mean Well ELG-240-24B-3Y Power Supply 240W 24V - Dimmable 10A — 3-Wire Input (with Earth)

metal caseIP675 years warranty

SKU ELG-240-24B-3Y

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Overview

ELG-240-24B-3Y is the 24V output model of this series: rated current 10A, typical efficiency 92%. Type B + 3Y: 3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance) (IP67).

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 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 rating for indoor or outdoor installations
Function options: 3 in 1 dimming (dim-to-off)
Typical lifetime>50000 hours
5 years warranty

Specifications

ELG-240-24B-3YSpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE: 24V
CONSTANT CURRENT REGION^Note.2: 12 ~ 24V
RATED CURRENT: 10A
RATED POWER 200VAC ~ 305VAC: 240W
RATED POWER 100VAC ~ 180VAC: 180W
RIPPLE & NOISE (max.)^Note.3: 200mVp-p
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.): 92%
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: 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: 27 ~ 34V 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; IP67;KC61347-1,KC61347-2-13 approved
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

MODEL ENCODING

Blank: Io and Vo fixed; IP67
A: Io and Vo adjustable through built-in potentiometer; IP65
B (this model): 3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance); IP67
AB: Io and Vo adjustable through built-in potentiometer & 3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance); IP65
DA: DALI control technology; IP67

Test conditions and notes13

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.

Technical drawings

ELG-240-24B-3Y Block Diagram — Block Diagram

ELG-240-24B-3Y DIMMING OPERATION — DIMMING OPERATION

ELG-240-24B-3Y OUTPUT LOAD vs TEMPERATURE(Note.10) — OUTPUT LOAD vs TEMPERATURE(Note.10)

ELG-240-24B-3Y STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

ELG-240-24B-3Y TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

ELG-240-24B-3Y Dimensions (mm) — Dimensions (mm)

ELG-240-24B-3Y ※ B/DA-Type — ※ B/DA-Type

ELG-240-24B-3Y ※ 3Y Model (3-wire input) — ※ 3Y Model (3-wire input)

ELG-240-24B-3Y 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-240-24B-3Y 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-240-24)(EN) PDF Download

FAQ

Can the ELG-240-24B-3Y be used in outdoor transit infrastructure such as a bus shelter or rail platform canopy?

Yes. The IP65/IP67 rating handles rain in partially covered outdoor transit environments, and the -40°C to +90°C case temperature range (max. ambient 60°C at rated current in constant-current mode) covers the seasonal temperature envelope. The 240W, 24V output supports extended LED strip runs across wide canopy spans.

Is the ELG-240-24B-3Y suitable for powering 24V LED strips in large outdoor sign cabinets?

Yes. The IP65/IP67 rating allows the driver to be mounted inside outdoor sign boxes exposed to rain, and the 240W output (180W on 100–180VAC) provides ample capacity for channel letter arrays or large backlit displays. The 100–305VAC input supports both North American and European mains.

Can the ELG-240-24B-3Y power 24V LED strips in a stadium or arena concourse?

Yes. With 240W at 24V and an IP65/IP67-rated housing, this driver handles the dust, splashes and temperature swings common in large venue concourses and loading areas (working humidity 20–95% RH non-condensing). The 3-in-1 dimming (0–10V, PWM, resistance) supports integration with venue lighting control systems.

How many meters of 24V LED strip can the ELG-240-24B-3Y drive?

At 240W and 24V output (200–305VAC input), divide 240 by your strip's wattage per meter: a 14.4 W/m strip allows approximately 16.6 meters, and a 20 W/m strip allows approximately 12 meters. On 100–180VAC the rating is 180W (about 9 m of 20 W/m strip). Always check your strip's rated power per meter and consider leaving about 20% headroom.

Is the ELG-240-24B-3Y waterproof enough for below-grade outdoor lighting enclosures?

Possibly. The ELG-240 series is rated IP65 or IP67, and only IP67 covers temporary water immersion, so confirm the IP rating of the unit before mounting it in in-ground or below-grade lighting vaults. Permanent continuous submersion should be avoided.

What certifications does the ELG-240-24B-3Y carry?

The datasheet lists UL8750 (type HL), CSA C22.2 No. 250.13-12, IEC/BS EN/EN/AS/NZS 61347-1 and 61347-2-13, EN62384, EAC TP TC 004, GB/T19510 and KC safety standards. This set covers North American, European, Eurasian, Australian/New Zealand, Chinese and Korean requirements, supporting deployment across multiple regional markets.

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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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