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Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable 6.7A

$90.04 USD
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Overview

HLG-320H-48B is the 48V output model of this series: rated current 6.7A, rated power 321.6W, typical efficiency 95%.

HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-320H operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 94%, 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. HLG-320H 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 with class I design
  • Built-in active PFC function
  • IP67 / IP65 rating for indoor or outdoor installations
  • Function options: output adjustable via potentiometer; 3 in 1 dimming
  • Typical lifettime > 62000 hours
  • 7 years warranty

Specifications

HLG-320H-48BSpecifications from the official datasheet (2026-02-04 edition)

OUTPUT

DC VOLTAGE
48V
CONSTANT CURRENT REGIONNote.4
24 ~ 48V
RATED CURRENT
6.7A
RATED POWER
321.6W
RIPPLE & NOISE (max.)Note.2
250mVp-p
VOLTAGE ADJ. RANGE
43 ~ 52V
CURRENT ADJ. RANGE
3.35 ~ 6.7A
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIMENote.6
2500ms,80ms/115VAC 600ms,80ms/230VAC
HOLD UP TIME (Typ.)
15ms / 115VAC, 230VAC

INPUT

VOLTAGE RANGENote.5
90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF≧0.98/115VAC, PF≧0.95/230VAC, PF≧0.94/277VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION
THD< 20% (@ load≧50% / 115VAC,230VAC; @ load≧75% / 277VAC) (Please refer to " TOTAL HARMONIC DISTORTION (THD) " section)
EFFICIENCY (Typ.) (230Vac)
95%
EFFICIENCY (Typ.) (277Vac)
95%
AC CURRENT (Typ.)
3.5A / 115VAC 1.65A / 230VAC 1.45A / 277VAC
INRUSH CURRENT(Typ.)
COLD START 70A(twidth=1010μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER
1 unit (circuit breaker of type B) / 2 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT
<0.75mA / 277VAC

PROTECTION

OVER CURRENTNote.4
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
53.5 ~ 60V
OVER TEMPERATURE
Shut down and latch off o/p 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 ~ 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. 250.0-08; BS EN/EN/AS/NZS 61347-1, BS EN/EN/AS/NZS 61347-2-13 independent; GB/T19510.1,GB/T19510.213; IP65 or IP67 (except for HLG-320H C-type); J61347-1, J61347-2-13 (except for C-type), EAC TP TC 004;KC61347-1,KC61347-2-13(except for AB,C-type), BIS IS 15885(Part2/Sec13) (NOTE 13) approved
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/EN55032 (CISPR32) Class B, 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, BS EN/EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF
1702.2K hrs min. Telcordia SR-332 (Bellcore) ; 157.2K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
252*90*43.8mm (L*W*H)
PACKING
1.88Kg; 8pcs/16Kg/0.92CUFT
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. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. Please refer to "DRIVING METHODS OF LED MODULE".
  5. 5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” 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. 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.
  9. 9. 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.
  10. 10. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com.
  11. 11. 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).
  12. 12. 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
  13. 13. BIS certification is for HLG-320H-A only, but products sourced from Taiwan do not have the BIS logo, please contact your MEAN WELL sales for more information.
  14. 14. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

HLG-320H-48B BLOCK DIAGRAM
BLOCK DIAGRAM
HLG-320H-48B DIMMING OPERATION
DIMMING OPERATION
HLG-320H-48B Illustration (page 5)
Illustration (page 5)
HLG-320H-48B OUTPUT LOAD vs TEMPERATURE(Note.10)
OUTPUT LOAD vs TEMPERATURE(Note.10)
HLG-320H-48B STATIC CHARACTERISTICS
STATIC CHARACTERISTICS
HLG-320H-48B TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION
HLG-320H-48B LIFE TIME
LIFE TIME
HLG-320H-48B MECHANICAL SPECIFICATION
MECHANICAL SPECIFICATION
HLG-320H-48B ※AB-Type
※AB-Type
HLG-320H-48B ※C-Type
※C-Type
HLG-320H-48B WATERPROOF CONNECTION
WATERPROOF CONNECTION

Typical applications

  • LED street lighting
  • LED high-bay lighting
  • Parking space lighting
  • LED fishing lamp
  • LED greenhouse lighting
  • Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Downloads

FAQ

Can I use the HLG-320H-48B for outdoor 48V LED strip lighting that needs dimming?

Yes. The HLG-320H-48B delivers 48V at up to 6.7A (320W) with a built-in 3-in-1 dimming input (1-10V, PWM or resistance), and the series' IP65/IP67-rated metal housing is designed for outdoor applications. Check the B-type's IP rating before exposing it directly to rain.

Is the HLG-320H-48B a good fit for dimmable 48V LED facade or building-perimeter lighting?

Yes. With 320W at 48V and an IP65/IP67-rated metal housing, it suits outdoor facade installations. The dimming input lets you create lighting scenes or reduce brightness overnight. The wide 90-305VAC input accommodates commercial mains supplies globally.

Can I use the HLG-320H-48B to power dimmable 48V LED landscape path lights?

Yes. At 320W it can drive multiple 48V landscape fixtures from a single driver, and the dimming input allows time-based brightness reduction for energy savings. The series' IP65/IP67-rated metal housing is designed for outdoor installation in landscaped areas.

How many meters of 48V LED strip can the HLG-320H-48B support?

That depends on the strip's rated power per meter. The HLG-320H-48B supplies up to 320W at 48V. For instance, if your strip draws 15W/m, you could run about 21.3 meters (320W / 15W per meter). Check your strip's rated power per meter and keep total load at or below 320W.

Can the HLG-320H-48B be installed in a location prone to flooding or standing water?

The HLG-320H series is rated IP65 or IP67 depending on type, but the datasheet does not state a submersion depth. For light wells, storm-prone installations, or areas where standing water may occur, check the B-type's rating and the IP installation cautions in MEAN WELL's user manual first.

What are the differences between the HLG-320H-48, 48A, 48AB, and 48B models?

All four share the same 320W / 48V / 6.7A core specs. The base HLG-320H-48 has no output adjustment or dimming. The -48A adds built-in potentiometers for output voltage and current adjustment. The -48AB adds current adjustment plus 3-in-1 dimming (1-10VDC, 10V PWM or resistance). The -48B provides dimming input only. The series is rated IP65 or IP67 depending on type.

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Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable 6.7A
Mean Well

Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable 6.7A

$90.04 USD

HLG-320H-48B is the 48V output model of this series: rated current 6.7A, rated power 321.6W, typical efficiency 95%.

HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output. HLG-320H operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 94%, 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. HLG-320H 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 with class I design
  • Built-in active PFC function
  • IP67 / IP65 rating for indoor or outdoor installations
  • Function options: output adjustable via potentiometer; 3 in 1 dimming
  • Typical lifettime > 62000 hours
  • 7 years warranty

Typical applications

  • LED street lighting
  • LED high-bay lighting
  • Parking space lighting
  • LED fishing lamp
  • LED greenhouse lighting
  • Type “HL” for use in ClassⅠ, Division 2 hazardous (Classified) location.

Model

  • 185W 48V
  • 185W 48V Adjustable
  • 185W 48V Adjustable and Dimmable
  • 185W 48V Dimmable
  • 240W 48V
  • 240W 48V Adjustable
  • 240W 48V Adjustable and Dimmable
  • 240W 48V Dimmable
  • 320W 48V
  • 320W 48V Adjustable
  • 320W 48V Adjustable and Dimmable
  • 320W 48V Dimmable
  • 480W 48V
  • 480W 48V Adjustable
  • 480W 48V Adjustable and Dimmable
  • 480W 48V Dimmable
  • 600W 48V
  • 600W 48V Adjustable
  • 600W 48V Adjustable and Dimmable
  • 600W 48V Dimmable
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