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Mean Well ELG-150-42AB Power Supply 150W 42V - Adjustable and Dimmable 3.57A

metal caseIP65/IP675 years warranty
SKU ELG-150-42AB
$43.58 USD
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ELG-150-42AB
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Overview

ELG-150-42AB is the 42V output model of this series: rated current 3.57A, typical efficiency 90%. Type AB: Io and Vo adjustable through built-in potentiometer & 3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance) (IP65).

ELG-150 series is a 150W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-150 operates from 100~305VAC and offers models with different rated voltage ranging between 12V 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 IP65 ingress protection level allows this series to fit both indoor and outdoor applications. ELG-150 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
  • IP65 rating for indoor or outdoor installations
  • Function options: output adjustable via potentiometer; 3 in 1 dimming (dim-to-off)
  • Typical lifet ime>50000 hours
  • 5 years warranty

Specifications

ELG-150-42ABSpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE
42V
CONSTANT CURRENT REGIONNote.2
21 ~ 42V
RATED CURRENT
3.57A
RATED POWER 100VAC ~ 180VAC
105W
RATED POWER 200VAC ~ 305VAC
150W
RIPPLE & NOISE (max.)Note.3
250mVp-p
VOLTAGE ADJ. RANGE
Adjustable for AB-Type only (via the built-in potentiometer) 37.8 ~ 46.2V
CURRENT ADJ. RANGE
Adjustable for AB-Type only (via the built-in potentiometer) 1.8 ~ 3.57A
VOLTAGE TOLERANCENote.4
±2.5%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
1600ms, 80ms/115VAC 500ms, 100ms/230VAC
HOLD UP TIME (Typ.)
10ms/115VAC, 230VAC

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; @load≧60%/230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.)
90%
AC CURRENT
1.7A / 115VAC 0.9A / 230VAC 0.7A/277VAC
INRUSH CURRENT(Typ.)
COLD START 65A(twidth=550μs 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
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
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,BIS IS15885(for 12/12A/12B/12DA/24/24A/24B/24DA/36A/36B/42/42A/42B/48A/48B/54/54A/54B only), EAC TP TC 004,GB/T19510.1,GB/T19510.213; IP65; 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≧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
2661.6K hrs min. Telcordia SR-332 (Bellcore) ;313.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
219*63*35.5mm (L*W*H)
PACKING
0.95Kg ; 16pcs/16.0kg/0.77CUFT

Certifications & ratings

Type
Type HL

MODEL ENCODING

Blank
Io and Vo fixed; IP67
A
Io and Vo adjustable through built-in potentiometer; IP65
B
3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance); IP67
AB (this model)
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. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
  2. 3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
  3. 4. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTICS” sections for details.
  5. 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.
  6. 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)
  7. 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.
  8. 9. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
  9. 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).
  10. 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
  11. 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.
  12. 13. ELG-150-12(except blank/A-Type) is used for any light source that exempt from the ErP-Directive (EU) 2019/2020 requirement, for example this model could be use for signalling products(including, but not limited to road-, railway-, marineorair traffic-signalling , traffic control or airfield lamps) .
  13. 14. For AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-150-42AB Block Diagram
Block Diagram
ELG-150-42AB DIMMING OPERATION
DIMMING OPERATION
ELG-150-42AB OUTPUT LOAD vs TEMPERATURE(Note.9)
OUTPUT LOAD vs TEMPERATURE(Note.9)
ELG-150-42AB STATIC CHARACTERISTIC
STATIC CHARACTERISTIC
ELG-150-42AB TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
ELG-150-42AB LIFE TIME
LIFE TIME
ELG-150-42AB ※ AB-Type
※ AB-Type
ELG-150-42AB ※ 3Y Model (3-wire input)
※ 3Y Model (3-wire input)
ELG-150-42AB 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

What dimming and adjustment features does the ELG-150-42AB provide?

The ELG-150-42AB includes both the 'A' built-in output adjustment potentiometer and the 'B' 3-in-1 dimming input (0–10V, 10V PWM, or resistance control). The potentiometer lets you manually adjust the output voltage (37.8–46.2V) and current (1.8–3.57A) during installation, while the external dimming input allows run-time brightness control via a 0–10V signal or compatible dimmer.

Can I use the ELG-150-42AB for 42V LED strip lighting in a covered outdoor entertainment venue?

Yes. The ELG-150-42AB is rated IP65, suitable for dust-tight and water-spray-resistant environments such as covered outdoor stages, beer gardens, or open-sided canopy structures where the driver is shielded from direct rain. Its 150W capacity supports meaningful runs of 42V strip lighting in those applications.

Is the ELG-150-42AB appropriate for 42V LED strips in a greenhouse or high-humidity grow lighting setup?

The IP65 rating provides protection against water spray, which covers many greenhouse environments; the sheet specifies 20–95% RH non-condensing working humidity, so keep the driver where condensation does not form on it. The case temperature (Tcase) range of -40°C to +90°C, with derating at high ambient temperatures, accommodates warm growing spaces. However, for installations with direct water immersion risk, the IP67-rated ELG-150-42B or ELG-150-42DA would offer additional protection.

How many meters of 42V LED strip can the ELG-150-42AB support?

The ELG-150-42AB delivers 150W at 42V. Divide 150W by your strip's watt-per-meter rating to estimate the maximum run length. For example, a 12 W/m strip yields approximately 12.5 meters maximum; a 20 W/m strip yields approximately 7.5 meters. Check your strip's rated power per meter and derate to 80% for continuous operation, giving roughly 10 m and 6 m respectively in those examples.

Can the ELG-150-42AB drive 42V LED strips for linear architectural lighting in commercial offices?

Yes. The 0–10V dimming input on the ELG-150-42AB integrates directly with the 0–10V outputs common in commercial building management systems, and the 150W capacity handles extended linear runs of 42V architectural LED strip. The built-in trim pot also lets the installer fine-tune the light output level during commissioning.

Can the ELG-150-42AB be used in LED retrofit projects for 42V fluorescent-replacement strip fixtures?

Yes. The adjustable output (37.8–46.2V voltage and 1.8–3.57A current via the built-in potentiometer) and 0–10V dimming make the ELG-150-42AB a flexible choice for retrofitting legacy fluorescent troffers or strip fixtures with 42V LED replacement modules, especially where an existing 0–10V dimming infrastructure is already in place.

How does the ELG-150-42AB differ from the ELG-150-42A and ELG-150-42B?

All three share the same 150W, 42V, 3.57A output and physical dimensions. The ELG-150-42A provides only the built-in output voltage/current adjustment potentiometer (no external dimming). The ELG-150-42B provides only the external 0–10V/PWM/resistance dimming input (no potentiometer). The ELG-150-42AB includes both features. The A and AB models are rated IP65; the B model is rated IP67.

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Other ELG-150 Models

4 other models
ModelPower Voltage Current IP RatingPrice
Mean Well ELG-150-48 Power Supply 150W 48V 3.13A 150.2W 48V 3.13A IP67$40.43 View
Mean Well ELG-150-48DA Power Supply 150W 48V -DALI 3.13A 150.2W 48V 3.13A IP67$46.89 View
Mean Well ELG-150-48B Power Supply 150W 48V - Dimmable 3.13A 150.2W 48V 3.13A IP67$43.79 View
Mean Well ELG-150-24DA Power Supply 150W 24V - DALI 6.25A 150W 24V 6.25A IP67$46.89 View
Mean Well

Mean Well ELG-150-42AB Power Supply 150W 42V - Adjustable and Dimmable 3.57A

$43.58 USD

ELG-150-42AB is the 42V output model of this series: rated current 3.57A, typical efficiency 90%. Type AB: Io and Vo adjustable through built-in potentiometer & 3 in 1 dimming function (0~10Vdc, 10V PWM signal and resistance) (IP65).

ELG-150 series is a 150W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-150 operates from 100~305VAC and offers models with different rated voltage ranging between 12V 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 IP65 ingress protection level allows this series to fit both indoor and outdoor applications. ELG-150 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
  • IP65 rating for indoor or outdoor installations
  • Function options: output adjustable via potentiometer; 3 in 1 dimming (dim-to-off)
  • Typical lifet ime>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 Dimmable
  • 75W 42V Adjustable and Dimmable
  • 75W 42V DALI
  • 96W 42V
  • 96W 42V Adjustable
  • 96W 42V Dimmable
  • 96W 42V DALI
  • 100W 42V Adjustable and Dimmable
  • 150W 42V
  • 150W 42V Adjustable
  • 150W 42V Dimmable
  • 150W 42V Adjustable and Dimmable
  • 150W 42V DALI
  • 200W 42V
  • 200W 42V Adjustable
  • 200W 42V Dimmable
  • 200W 42V Adjustable and Dimmable
  • 200W 42V DALI
  • 240W 42V
  • 240W 42V Adjustable
  • 240W 42V Dimmable
  • 240W 42V Adjustable and Dimmable
  • 240W 42V DALI
View product