Mean Well HLG-320H-48A – Io and Vo Adjustable Through Built in Potentiometer, IP65 Protected

HLG-320H-48A Electrical Data

HLG-320H-48A Output

DC Voltage 48V
Constant Current Region 24 – 48V
Rated Current 6.7A
Rated Power 321.6W
Ripple & Noise (max) 250mVp-p
Voltage ADJ Range Adjustable for A/AB/C-Type only (via built-in potentiometer) 43 ~ 52V
Current ADJ 3.35 ~ 6.7A
Voltage Tolerance ±1.0%
Line Regulation ±0.5%
Load Regulation ±0.5%
Setup Rise Time 2500ms,80ms/115VAC 500ms,80ms/230VAC
Hold up Time 15ms / 115VAC, 230VAC

HLG-320H-48A Input

Voltage Range 90 ~ 305VAC 127 ~ 431VDC (Please refer to “STATIC CHARACTERISTIC” section)
Frequency Range 47 ~ 63Hz
Power Factor PF≧0.98/115VAC, PF≧0.95/230VAC @ full load (Please refer to “POWER FACTOR (PF) CHARACTERISTIC” section)
Total Harmonic Distribution 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(t =1010 s measured at 50% I ) at 230VAC; width peak μ 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

HLG-320H-48A 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 53.5 ~ 60V Shut down and latch off o/p voltage, re-power on to recover
Over Temperature Shut down o/p voltage, recovers automatically after temperature goes down

HLG-320H-48A 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

HLG-320H-48A Safety & EMC

Safety Standards UL8750(type”HL”), CSA C22.2 No. 250.0-08; EN/AS/NZS 61347-1, EN/AS/NZS 61347-2-13, EN62384 independent; GB19510.1,GB19510.14 ); (except for C,D-type IP65 or IP67 (except for HLG-320H C-type); J61347-1, J61347-2-13 (for A,B,Blank-type only), EAC TP TC 004;KC61347 1 KC61347 2 13 – , – – (except for AB,C-type) 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 EN55015, EN55032 (CISPR32) Class B, EN61000-3-2 Class C (@ load≧50%) ; EN61000-3-3, GB17743 and GB17625.1,EAC TP TC 020;KC KN15,KN61547(except for AB,C,D-type)
EMC Immunity Compliance to EN61000-4-2,3,4,5,6,8,11, EN61547, EN55024, light industry level (surge immunity Line-Earth 4KV, Line-Line 2KV) EAC TP TC 020;KC KN15,KN61547(except for AB,C,D-type)

Others

MTBF 157.1K hrs min. MIL-HDBK-217F (25 ) ℃
Dimension 252*90*43.8mm (L*W*H)
Packing 1.88Kg; 8pcs/16Kg/0.92CUFT

Also stocked within the HLG family

HLG-40H-24A
HLG-150H-24A
HLG-185H-36A
HLG-240H-12A
HLG-240H-24B
HLG-320H-24A
HLG-480H-24B

LED drivers for street lighting are specialized power supply units that convert alternating current (AC) to direct current (DC), providing constant, regulated power to ensure consistent brightness, prevent flickering, and manage thermal output. They are typically external, waterproof (IP67), and durable to withstand harsh outdoor conditions. Key features include high efficiency, surge protection, and dimming capabilities for energy savings.

Key Aspects of Street Lighting LED Drivers:

Constant Current (CC) Technology: Crucial for street lighting, CC drivers maintain a consistent output current despite changes in voltage or temperature, ensuring uniform brightness and long LED lifespan.

Durability & Protection: Due to outdoor exposure, drivers must have high IP ratings (IP65, IP67, or IP68) for waterproofing and dust resistance, as well as robust surge protection against lightning strikes.

Placement (Internal vs. External): While traditionally built inside the fixture, modern streetlights often use remote, externally mounted drivers, making maintenance easier and reducing heat buildup inside the lamp housing.

Efficiency & Dimming: Drivers often have 70%–95% efficiency. Many support intelligent, smart city controls, allowing for dimming during low-traffic hours to save energy.

Reliability: Branded drivers (e.g., Philips, Mean Well, Inventronics) are preferred for better performance, higher power factors (PF), lower total harmonic distortion (THD), and, most importantly, meeting safety certifications.

Common Issues & Maintenance:

The driver is usually the first component to fail in an LED fixture due to heat and electrical stress. Therefore, high-quality, reliable components are essential to reduce the high cost of maintaining streetlights at height.

Established in 1982, headquartered in New Taipei City, MEAN WELL is a Standard Power Supply manufacturer and dedicated to developing specialized industrial power supplies solutions for decades.

Marketed worldwide with its own brand “MEAN WELL”, MEAN WELL power supply has been widely used in all industries and almost everywhere in your life. From home espresso machine, Gogoro electric scooter charging station, to the well-known landmark Taipei 101 skyscraper top lighting and Taoyuan International Airport jet bridge lighting, all of these you will surprisingly find MEWN WELL Power hidden inside, functioning as the heart of the machine, providing stable voltage and current for a long time, and powering up the whole machine and system to operate smoothly.

MEAN WELL Power has been widely used in different industries such as Industrial Automation, LED Lighting/ outdoor signage, Medical, Telecommuting, Transportation and Green Energy applications.

MEAN WELL has maintained a long term, solid relationship with our customers, suppliers, and employees in the spirit of “good intention” and “reliable partner” commitments since the company founded. Over the years, MEAN WELL has built hundreds of reliable partnership around the world.