Mean Well HLG-320H-C1750AB Power Supply 320.25W 1750mA - Adjustable and Dimmable

Name: Mean Well HLG-320H-C1750AB Power Supply 320.25W 1750mA - Adjustable and Dimmable
Brand: Mean Well
SKU: HLG-320H-C1750AB
Price: 109.15 USD
Availability: InStock

Overview

HLG-320H-C1750AB is the model of this series: rated current 1750mA, 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-C1750ABSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

RATED CURRENT: 1750mA
RATED POWER: 320.25W
CONSTANT CURRENT REGION^Note.2: 91 ~ 183V
OPEN CIRCUIT VOLTAGE (max.): 187V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via built-in potentiometer) 875 ~ 1750mA
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: 192 ~ 211V 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-C1750AB BLOCK DIAGRAM — BLOCK DIAGRAM

HLG-320H-C1750AB DIMMING OPERATION — DIMMING OPERATION

HLG-320H-C1750AB 320W Constant Current Mode LED Driver — 320W Constant Current Mode LED Driver

HLG-320H-C1750AB OUTPUT LOAD vs TEMPERATURE(Note.8) — OUTPUT LOAD vs TEMPERATURE(Note.8)

HLG-320H-C1750AB STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

HLG-320H-C1750AB TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

HLG-320H-C1750AB LIFETIME(Kh) — LIFETIME(Kh)

HLG-320H-C1750AB 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-C1750)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the HLG-320H-C1750AB for LED high-bay fixtures with dimming in a warehouse?

Yes. The HLG-320H-C1750AB delivers 1750mA constant current at up to 320.25W, suitable for high-bay LED modules with string voltages in the 91-183V range. The built-in 3-in-1 dimming input (0-10VDC, 10V PWM, or resistance) lets you integrate occupancy sensors or daylight harvesting controllers for energy savings during off-peak hours.

Is the HLG-320H-C1750AB suitable for driving LED panels in a large open-plan office?

Yes, provided the LED panels require 1750mA drive current and their voltage falls within 91-183V. The adjustable output lets you fine-tune current to match the specific LED module, while the dimming input enables smooth brightness control through a 0-10VDC, PWM, or resistance signal from a lighting controller or building management system.

Can the HLG-320H-C1750AB power LED modules in a greenhouse lighting system?

Yes. The 320.25W output at 1750mA is well suited for horticultural LED fixtures operating within the 91-183V range. The adjustable current output lets you match specific grow-light module requirements, and the dimming input enables automated light-level scheduling. Working humidity is rated 20-95% RH non-condensing, so keep condensation off the driver in humid greenhouse environments.

What is the advantage of the HLG-320H-C1750AB over the C1750A or C1750B?

The HLG-320H-C1750AB combines both features of the other variants: it has the output current adjustment potentiometer (875-1750mA) from the -C1750A and the 3-in-1 dimming input (0-10VDC, 10V PWM, or resistance) from the -C1750B. This gives you both permanent current calibration and dynamic dimming control in a single unit, all at the same 320.25W / 1750mA / 91-183V specs.

How do I verify the HLG-320H-C1750AB is compatible with my LED load?

Confirm your LED module or series string requires a 1750mA drive current and that its total forward voltage falls within the 91-183V range. The driver will auto-regulate voltage to maintain constant current. If your LEDs need slightly less than 1750mA, use the built-in potentiometer to reduce the output current to the optimal level.

Can the HLG-320H-C1750AB be used in a covered outdoor car park?

Yes. The HLG-320H-C series is IP65 or IP67 approved against dust and water, which is adequate for covered or semi-enclosed parking structures. The -40°C to +85°C case temperature (Tcase) range handles seasonal temperature extremes. For uncovered areas with direct rain exposure, confirm this version's IP rating first.

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