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Mean Well

Mean Well ELG-240-54B Power Supply 240W 54V - Dimmable 4.45A

metal caseIP65/IP675 years warranty
SKU ELG-240-54B
$57.61 USD
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ELG-240-54B
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Overview

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

OUTPUT

DC VOLTAGE
54V
CONSTANT CURRENT REGIONNote.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 TOLERANCENote.4
±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
500ms, 100ms/230VAC, 1000ms, 100ms/115VAC
HOLD UP TIME (Typ.)
10ms/ 230VAC 10ms/ 115VAC

INPUT

VOLTAGE RANGENote.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 CONSUMPTIONNote.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. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
  2. 2. Please refer to "DRIVING METHODS OF LED MODULE".
  3. 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. 4. Tolerance : includes set up tolerance, line regulation and load regulation.
  5. 5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
  6. 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. 7. No load/standby power consumption is specified for 230VAC input.
  8. 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. 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. 10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
  11. 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. 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. 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. 14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-240-54B Block Diagram
Block Diagram
ELG-240-54B DIMMING OPERATION
DIMMING OPERATION
ELG-240-54B OUTPUT LOAD vs TEMPERATURE(Note.10)
OUTPUT LOAD vs TEMPERATURE(Note.10)
ELG-240-54B STATIC CHARACTERISTIC
STATIC CHARACTERISTIC
ELG-240-54B TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
ELG-240-54B LIFE TIME
LIFE TIME
ELG-240-54B MECHANICAL SPECIFICATION
MECHANICAL SPECIFICATION
ELG-240-54B ※ AB-Type
※ AB-Type
ELG-240-54B Dimensions (mm)
Dimensions (mm)
ELG-240-54B ※ B/DA-Type
※ B/DA-Type
ELG-240-54B ※ 3Y Model (3-wire input)
※ 3Y Model (3-wire input)
ELG-240-54B 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

FAQ

Can the ELG-240-54B be used with a 0–10V wall dimmer for office lighting?

Yes. The B suffix indicates three-in-one dimming, which includes a 0–10VDC input between the DIM+ and DIM- leads. This allows control from 0–10V dimmers and building automation interfaces used in office and commercial lighting.

Is the ELG-240-54B safe for outdoor LED installations exposed to rain or moisture?

Yes. The ELG-240 series carries an IP65 or IP67 rating, providing dust-tight, water-resistant protection. It is appropriate for outdoor LED architectural lighting, weatherproof sign cabinets, and covered exterior fixture housings.

How many meters of 54V LED strip can the ELG-240-54B power?

The ELG-240-54B provides 240.3W at 54V and 4.45A on 200–305VAC input (180.36W on 100–180VAC). At 20W per meter that is approximately 12 meters; at 16W per meter about 15 meters. Check your strip's rated power per meter and keep the total load within the rating for your input voltage.

Can the ELG-240-54B power LED strip in a covered outdoor patio or pergola installation?

Yes. The IP65/IP67 rating and -40°C to +90°C case temperature range make this driver reliable in covered outdoor environments subject to temperature swings and incidental moisture. The 54V output is suitable for 54V LED strips commonly used in outdoor decorative and architectural applications.

Is the ELG-240-54B suitable for museum display lighting with dimming requirements?

Yes. Three-in-one dimming (0–10V, PWM, or resistance) allows brightness adjustment down to about 8%, and the 240.3W capacity at 54V can drive large display runs. The series has a typical life expectancy of over 50,000 hours when the case (tc point) stays at about 70°C or less.

How does the ELG-240-54B compare to other ELG-240-54 variants?

All ELG-240-54 variants share the same 240.3W output at 54V and 4.45A. The base model has no dimming; the A-type adds output adjustment only; the AB-type adds both adjustment and three-in-one dimming; the B-type (this unit) adds three-in-one dimming without the potentiometer; and the DA-type uses a DALI digital dimming interface.

Payment & Security

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Other ELG-240 Models

1 other model
ModelPowerVoltageCurrentIP 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-240-54B Power Supply 240W 54V - Dimmable 4.45A
Mean Well

Mean Well ELG-240-54B Power Supply 240W 54V - Dimmable 4.45A

$57.61 USD

ELG-240-54B 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

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.

Model

  • 96W 54V
  • 96W 54V Adjustable
  • 96W 54V DALI
  • 96W 54V Dimmable
  • 100W 54V Adjustable and Dimmable
  • 150W 54V
  • 150W 54V Adjustable
  • 150W 54V Adjustable and Dimmable
  • 150W 54V DALI
  • 150W 54V Dimmable
  • 200W 54V
  • 200W 54V Adjustable
  • 200W 54V Adjustable and Dimmable
  • 200W 54V DALI
  • 200W 54V Dimmable
  • 240W 54V
  • 240W 54V Adjustable
  • 240W 54V Adjustable and Dimmable
  • 240W 54V DALI
  • 240W 54V Dimmable
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