MeanWell HLG-320H-C1050AB Power Supply | 320.25W 1050mA

Name: Mean Well HLG-320H-C1050AB Power Supply 320.25W 1050mA - Adjustable and Dimmable
Brand: Mean Well
SKU: HLG-320H-C1050AB
Price: 109.15 USD
Availability: InStock

Overview

HLG-320H-C1050AB is the model of this series: rated current 1050mA, rated power 320.25W, typical efficiency 94%.

HLG-320H-C series is a 320W LED AC/DC LED driver featuring the constant current mode and high voltage output. HLG-320H-C operates from 90~305VAC and offers models with different rated current ranging between 700mA and 3500mA. Thanks to the high efficiency up to 94%, with the fanless design, the entire series is able to operate for -40℃ ~ +85℃ 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. HLG-320H-C is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.

Features

Constant Current mode output
Metal housing with ClassⅠdesign
Built-in active PFC function
IP67 / IP65 design for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming
Type "HL" for use in ClassⅠ, Division 2 hazardous (Classified) location.
Typical lifetime>62000 hours
7 years warranty

Specifications

HLG-320H-C1050ABSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

RATED CURRENT: 1050mA
RATED POWER: 320.25W
CONSTANT CURRENT REGION^Note.2: 152 ~ 305V
OPEN CIRCUIT VOLTAGE (max.): 311V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 525 ~ 1050mA
CURRENT RIPPLE: 5.0% max. @rated current
CURRENT TOLERANCE: ±5%
SET UP TIME^Note.4: 1000ms/115VAC, or 500ms/230VAC

INPUT

VOLTAGE RANGE^Note.3: 90 ~ 305VAC 127~417VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF≧0.98/115VAC, 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% /115VAC, 230VAC; @ load≧70%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION (THD)” section)
EFFICIENCY (Typ.): 94%
AC CURRENT (Typ.): 3.5A / 115VAC 1.65A / 230VAC 1.45A / 277VAC
INRUSH CURRENT(Typ.): COLD START 70A(twidth=1200μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 2 units (circuit breaker of type B) / 3 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC

PROTECTION

SHORT CIRCUIT: Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 320 ~ 352V Shut down and latch off o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down and latch off o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: Tcase=-40 ~ +85℃(Please refer to "OUTPUT LOAD vs TEMPERATURE" section)
MAX. CASE TEMP.: Tcase=+85℃
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 50℃)
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; ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384 independent; GB/T19510.1,GB/T19510.213,EAC TP TC 004, IP65 or IP67 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:2KVAC 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
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 4KV, Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF: 1847.6K hrs min. Telcordia SR-332 (Bellcore) ; 182.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 252*90*43.8mm (L*W*H)
PACKING: 1.88Kg; 8pcs/16Kg/0.92CUFT

Certifications & ratings

Type: HL

Test conditions and notes11

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".
3. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
4. 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.
5. 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)
6. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED driver can only be used behind a switch without permanently connected to the mains.
7. This series meets the typical life expectancy of >62,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃ or less.
8. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
9. 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. 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. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

HLG-320H-C1050AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-320H-C1050AB DIMMING OPERATION — DIMMING OPERATION

HLG-320H-C1050AB 320W Constant Current Mode LED Driver — 320W Constant Current Mode LED Driver

HLG-320H-C1050AB OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-320H-C1050AB STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-320H-C1050AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-320H-C1050AB LIFETIME(Kh) — LIFETIME(Kh)

HLG-320H-C1050AB MECHANICAL SPECIFICATION — MECHANICAL SPECIFICATION

Typical applications

Downloads

Certificates4

UL Certificate(HLG-320H-C)(EN) PDF Download

CB Certificate(HLG-320H-C)(EN) PDF Download

EMC Certificate(HLG-320H-C)(EN) PDF Download

ENEC Certificate(HLG-320H-C)(EN) PDF Download

Test reports1

Test Report(HLG-320H-C1050)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-320H-C1050AB with a building management system to dim LED high-bay lights?

Yes. The AB suffix means this driver has both output adjustment and a dimming signal input (0-10VDC/10V PWM/resistance). You can connect it to a BMS or lighting controller for automated brightness scheduling while using the built-in potentiometer to set the maximum output level. It delivers 1050mA constant current at up to 320.25W.

Is the HLG-320H-C1050AB suitable for dimmable LED grow light panels?

Yes, provided the grow light panel accepts 1050mA constant-current drive within the 152-305V range. The dimming input lets you reduce light intensity for seedling stages or increase it for flowering, and the potentiometer allows fine-tuning the maximum drive level. At 320.25W, it handles demanding horticultural LED arrays.

Can I use the HLG-320H-C1050AB for dimmable outdoor LED area lighting?

Yes. With 320.25W at 1050mA, an IP65/IP67-approved enclosure and dimming capability, it is well suited for outdoor area lights, pathway fixtures, or parking lot luminaires. The -40°C to +85°C case temperature (Tcase) range handles seasonal temperature extremes; confirm this version's IP rating for fully exposed mounting.

Can the HLG-320H-C1050AB drive LED tunnel or underpass lighting with dimming control?

Yes. The 320.25W output at 1050mA constant current can power tunnel luminaires with high-voltage LED strings in the 152-305V range. The dimming input allows daylight-responsive brightness adjustment at tunnel entrances and exits, and the IP65/IP67-approved enclosure handles the damp conditions typical in tunnels.

How do I size an LED string for the HLG-320H-C1050AB?

configure your LEDs in series so the total forward voltage falls within 152-305V. The driver will regulate at 1050mA constant current regardless of where in that range the voltage settles. The number of LEDs depends on each LED's forward voltage — add them up and verify the sum is within the CC range.

What are the differences between the HLG-320H-C1050A, C1050AB, C1050B, and C1050DA?

All four share the same 320.25W / 1050mA / 152-305V CC core specs. The C1050A has output adjustment only (potentiometer, 525-1050mA). The C1050B has dimming input only. The C1050AB combines adjustment and dimming. The C1050DA uses DALI protocol dimming. The series is IP65 or IP67 approved depending on version, so confirm the rating before fully exposed installations.

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Mean Well HLG-320H-C1050AB Power Supply 320.25W 1050mA - Adjustable and Dimmable

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