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Mean Well ELG-150-42B Power Supply 150W 42V - Dimmable 3.57A

$47.20 USD
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Overview

ELG-150-42B is the 42V output model of this series: rated current 3.57A, typical efficiency 90%.

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 IP67/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
  • 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 lifet ime>50000 hours
  • 5 years warranty

Specifications

ELG-150-42BSpecifications 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 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) 1.8 ~ 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
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,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 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
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
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". 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 CHARACTERISTICS” 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. 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) .
  14. 14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

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

Is the ELG-150-42B waterproof enough for open outdoor LED installations?

Yes. The ELG-150-42B carries an IP67 rating, making it dust-tight and protected against water immersion up to 1 meter for 30 minutes. This qualifies it for open outdoor fixtures, facade-mounted luminaires, or exterior sign cabinets where direct rainfall is possible.

Can I use the ELG-150-42B to power 42V LED strips in outdoor architectural facade lighting?

Yes. The IP67 waterproof rating and 150W output at 42V make the ELG-150-42B well suited for outdoor facade LED strip installations. Its -40°C to +90°C case temperature (Tcase) range handles the thermal extremes found in building exterior environments; derate output at high ambient temperatures in enclosed mounting positions.

Does the ELG-150-42B include external dimming capability?

Yes. The 'B' suffix indicates 3-in-1 dimming: the DIM+/DIM- leads accept an external 0–10VDC signal, a 10V PWM signal, or a resistance, with a minimum dimming level of about 8%. It has no output-adjustment potentiometer (that is the A/AB function), and for DALI control the ELG-150-42DA would be the appropriate variant.

How much 42V LED strip can the ELG-150-42B drive?

The ELG-150-42B outputs 150W at 42V. Divide 150W by your strip's rated power per meter to find the maximum run length. For a 10 W/m strip, that is approximately 15 meters; for a 15 W/m strip, approximately 10 meters. Check your strip's rated power per meter and limit continuous load to 80%, giving roughly 12 m and 8 m respectively in those examples.

Can the ELG-150-42B be used for 42V LED strips on a pier or marine dock lighting installation?

Yes, with care. The IP67 rating provides robust protection against dust, humidity and splashing in pier or dock installations, but it does not certify corrosion resistance, so consider an additional enclosure against salt air. The 150W capacity can power significant lengths of 42V strip lighting along walkways or handrails, and the wide input range (100–305VAC) accommodates common AC supplies.

Is the ELG-150-42B appropriate for powering 42V LED strips in outdoor parking structure wayfinding lighting?

Yes. Parking structures expose LED drivers to dust, vehicle exhaust, and water from rain and washing. The IP67 waterproof and dust-tight rating of the ELG-150-42B makes it a durable choice for 42V strip-based wayfinding or overhead lighting in these environments, and its >50,000-hour typical life at Tcase ≈80°C reduces long-term maintenance concerns.

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Mean Well ELG-150-42B Power Supply 150W 42V - Dimmable 3.57A
Mean Well

Mean Well ELG-150-42B Power Supply 150W 42V - Dimmable 3.57A

$47.20 USD

ELG-150-42B is the 42V output model of this series: rated current 3.57A, typical efficiency 90%.

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 IP67/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
  • 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 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 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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