Mean Well ELG-100-48AB Power Supply | Adjustable & Dimmable

Name: Mean Well ELG-100-48AB Power Supply 100W 48V - Adjustable and Dimmable 2A
Brand: Mean Well
SKU: ELG-100-48AB
Price: 45.1 USD
Availability: InStock

Overview

ELG-100-48AB is the 48V output model of this series: rated current 2A, 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-100-48ABSpecifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE: 48V
CONSTANT CURRENT REGION^Note.2: 24 ~ 48V
RATED CURRENT: 2A
RATED POWER 200VAC ~ 305VAC: 96W
RATED POWER 100VAC ~ 180VAC: 70W
RIPPLE & NOISE (max.)^Note.3: 300mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via the built-in potentiometer) 43.2 ~ 52.8V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via the built-in potentiometer) 1 ~ 2A
VOLTAGE TOLERANCE^Note.4: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 1000ms, 80ms/115VAC 500ms, 100ms/230VAC
HOLD UP TIME (Typ.): 15ms/115VAC 10ms/230VAC

INPUT

VOLTAGE RANGE^Note.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: 54 ~ 62V 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. 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". For DA-Type, Constant Current region is 60%~100% of maximum voltage under rated power delivery.
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. 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. 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. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
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. 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. 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. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-100-48AB Block Diagram — Block Diagram

ELG-100-48AB DIMMING OPERATION — DIMMING OPERATION

ELG-100-48AB OUTPUT LOAD vs TEMPERATURE(Note.9) — OUTPUT LOAD vs TEMPERATURE(Note.9)

ELG-100-48AB STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

ELG-100-48AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

ELG-100-48AB Mechanical Specification — Mechanical Specification

ELG-100-48AB ※ 3Y Model (3-wire input) — ※ 3Y Model (3-wire input)

ELG-100-48AB 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-100-48AB datasheetELG-100-SPEC.PDF · 2026-07-06 edition PDF Download

Certificates5

CB Certificate (ELG-100)(EN) PDF Download

UL Certificate (ELG-100)(EN) PDF Download

EMC Certificate (ELG-100)(EN) PDF Download

ERP Certificate (ELG-100)(EN) PDF Download

ENEC Certificate (ELG-100)(EN) PDF Download

Test reports1

Test Report (ELG-100-48)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the ELG-100-48AB to dim 48V LED strips in a restaurant or hospitality setting?

Yes. The ELG-100-48AB supports both output adjustment and dimming (the AB suffix indicates potentiometer adjustment plus a 3-in-1 dimming interface), making it suitable for adjustable ambient lighting in hospitality environments. Its 96W output at 48V can drive a 48V LED strip system where brightness control is needed.

Is the ELG-100-48AB rated for outdoor or damp-location use?

The ELG-100-48AB carries an IP65 water-resistant rating, meaning it is protected against dust and low-pressure water jets. It is appropriate for damp indoor locations and protected outdoor installations such as covered outdoor dining areas. For installations with direct rain exposure, an IP67-rated model would be more suitable.

How many meters of 48V LED strip can the ELG-100-48AB power?

The ELG-100-48AB delivers up to 96W on 200–305VAC input (70W on 100–180VAC, e.g. 120VAC). Divide this by your strip's rated watts per meter to estimate the maximum run: at 96W a 12 W/m strip allows approximately 8 m per driver. Always verify your specific strip's rated power per meter and leave a derating margin of at least 10%.

Can the ELG-100-48AB be used for 48V LED signage that requires dimming capability?

Yes. The AB variant includes adjustable output and a dimming interface, making it well suited for illuminated signage where brightness must be controlled—such as day/night level adjustment for covered outdoor signs or backlit menu boards. The 96W rating supports typical 48V sign strip loads.

Is the ELG-100-48AB suitable for museum or gallery lighting that uses 48V track or strip lights?

Yes. The dimming capability of the ELG-100-48AB allows light level control appropriate for display environments where consistent, adjustable illumination is required. Its 96W capacity suits a concealed luminaire or above-ceiling mounting.

What certifications does the ELG-100-48AB hold, and does it meet North American safety requirements?

The datasheet lists UL8750 (Type HL) and CSA C22.2 No. 250.13-12 for North America, plus IEC/EN/AS/NZS 61347-1 and 61347-2-13, EN62384, EAC TP TC 004, GB/T19510 and KC safety standards and EN55015/EN61000/EN61547 EMC compliance. For A/AB types the sheet notes that built-in use must be considered to comply with Type HL application.

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Mean Well ELG-100-48AB Power Supply 100W 48V - Adjustable and Dimmable 2A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Certifications & ratings

Technical drawings

Typical applications

Downloads

Datasheet1

Certificates5

Test reports1

Catalogues1

FAQ

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Mean Well ELG-100-48AB Power Supply 100W 48V - Adjustable and Dimmable 2A

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