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Mean Well ELG-100-42B Power Supply 95.76W 42V - Dimmable 2.28A

$44.05 USD
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Overview

ELG-100-42B is the 42V output model of this series: rated current 2.28A, typical efficiency 90%.

ELG-100 series is a 100W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-100 operates from 100~360VAC and offers models with different rated voltage ranging between 24V and 54V. Thanks to the high efficiency up to 91%, 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-100 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
  • Class 2 power unit
  • 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-100-42BSpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE
42V
CONSTANT CURRENT REGIONNote.2
21 ~ 42V
RATED CURRENT
2.28A
RATED POWER 200VAC ~ 305VAC
95.76W
RATED POWER 100VAC ~ 180VAC
70W
RIPPLE & NOISE (max.)Note.3
250mVp-p
VOLTAGE ADJ. RANGE
Adjustable for A/AB-Type only (via the built-in potentiometer) 37.8 ~ 46.2V
CURRENT ADJ. RANGE
Adjustable for A/AB-Type only (via the built-in potentiometer) 1.14 ~ 2.28A
VOLTAGE TOLERANCENote.4
±2.5%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
1000ms, 80ms/115VAC 500ms, 100ms/230VAC
HOLD UP TIME (Typ.)
15ms/115VAC 10ms/230VAC

INPUT

VOLTAGE RANGENote.5
100 ~ 305VAC 142 ~ 431VDC continue,320VAC for 24Hrs; 360VAC for 1Hr (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; @load≧60%/230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.)
90%
AC CURRENT
1.1A / 115VAC 0.6A / 230VAC 0.5A/277VAC
INRUSH CURRENT(Typ.)
COLD START 60A(twidth=850μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER
3 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
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
47 ~ 54V 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 ~ +80℃, 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/42ADA/42B/48/48B/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≧60%); 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 020; KC KN15,KN61547

OTHERS

MTBF
2920.8K hrs min. Telcordia SR-332 (Bellcore) 282.9Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
199*63*35.5mm (L*W*H)
PACKING
0.85kg; 16pcs/14.2kg/0.72CUFT

Certifications & ratings

Type
HL
Test conditions and notes13
  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". For DA-Type, Constant Current region is 60%~100% of maximum voltage under rated power delivery.
  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. 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. 8. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 80℃ or less.
  9. 9. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
  10. 10. 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).
  11. 11. 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
  12. 12. 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.
  13. 13. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-100-42B Block Diagram
Block Diagram
ELG-100-42B DIMMING OPERATION
DIMMING OPERATION
ELG-100-42B OUTPUT LOAD vs TEMPERATURE(Note.9)
OUTPUT LOAD vs TEMPERATURE(Note.9)
ELG-100-42B STATIC CHARACTERISTIC
STATIC CHARACTERISTIC
ELG-100-42B TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
ELG-100-42B LIFE TIME
LIFE TIME
ELG-100-42B Mechanical Specification
Mechanical Specification
ELG-100-42B ※ AB-Type
※ AB-Type
ELG-100-42B ※ B/DA-Type
※ B/DA-Type
ELG-100-42B ※ 3Y Model (3-wire input)
※ 3Y Model (3-wire input)
ELG-100-42B 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 I use the ELG-100-42B with a PWM dimming signal from a lighting controller?

Yes. The ELG-100-42B supports 3-in-1 dimming: 0–10VDC analogue, 10V PWM signal (100Hz–3KHz), and resistance dimming. A 10V PWM input from a lighting controller will modulate the output current proportionally to the duty cycle, allowing dimming of 42V LED loads down to about 8%.

Is the ELG-100-42B waterproof enough for outdoor LED signage?

Yes. The ELG-100-42B carries an IP67 rating, making it sealed against dust and protected against temporary water immersion. This level of protection is appropriate for outdoor LED channel letter signs and lightboxes exposed to direct rain; follow the IP installation cautions in MEAN WELL's user manual.

Can I run 42V dimmable LED strips for landscape lighting with the ELG-100-42B?

Yes. The IP67 rating and -40°C to +90°C case temperature (Tcase) rating make the ELG-100-42B suitable for ground-mounted landscape lighting installations. The 3-in-1 dimming allows integration with landscape lighting controllers that output a 0–10V or PWM signal. At 95.76W maximum (70W on 100–180VAC input), it supports approximately 9.5 meters of 42V strip rated at 10W per meter—verify your strip’s rated power per meter.

How does the ELG-100-42B differ from the ELG-100-42 base model?

Both share the same 95.76W / 42V / 2.28A output and IP67 waterproof rating. The ELG-100-42B adds 3-in-1 dimming capability (0–10V, PWM, resistance) that the base ELG-100-42 lacks. Choose the base model for fixed-output applications; choose the ‘B’ when dimming control is required.

Can the ELG-100-42B be used for dimmable outdoor architectural facade lighting?

Yes. The combination of IP67 sealing, a -40°C to +90°C case temperature rating, and 3-in-1 dimming makes the ELG-100-42B practical for dimmable facade wash or grazing fixtures rated at 42V DC. The 95.76W output is sized for medium-scale facade lighting segments.

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Mean Well ELG-100-42B Power Supply 95.76W 42V - Dimmable 2.28A
Mean Well

Mean Well ELG-100-42B Power Supply 95.76W 42V - Dimmable 2.28A

$44.05 USD

ELG-100-42B is the 42V output model of this series: rated current 2.28A, typical efficiency 90%.

ELG-100 series is a 100W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-100 operates from 100~360VAC and offers models with different rated voltage ranging between 24V and 54V. Thanks to the high efficiency up to 91%, 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-100 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
  • Class 2 power unit
  • 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

  • 75W 42V
  • 75W 42V Adjustable
  • 75W 42V Adjustable and Dimmable
  • 75W 42V DALI
  • 75W 42V Dimmable
  • 96W 42V
  • 96W 42V Adjustable
  • 96W 42V DALI
  • 96W 42V Dimmable
  • 100W 42V Adjustable and Dimmable
  • 150W 42V
  • 150W 42V Adjustable
  • 150W 42V Adjustable and Dimmable
  • 150W 42V DALI
  • 150W 42V Dimmable
  • 200W 42V
  • 200W 42V Adjustable
  • 200W 42V Adjustable and Dimmable
  • 200W 42V DALI
  • 200W 42V Dimmable
  • 240W 42V
  • 240W 42V Adjustable
  • 240W 42V Adjustable and Dimmable
  • 240W 42V DALI
  • 240W 42V Dimmable
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