Mean Well HLG-320H-42A Power Supply | 320W 42V - Adjustable

Description

Features

Universal AC input (up to 305VAC) / Full range

High efficiency up to 95%

Built-in active PFC function, PF> 0.9 for 60% of load or higher

Protections: Short circuit / Over current / Over voltage / Over temperature

IP67 / IP65 design for indoor or outdoor installations

Cooling by free air convection

Output current adjustable

Suitable for LED lighting and street lighting applications

Meet 4kV surge immunity level (IEC61000-4-5)

Multiple models for choice: A-Type: IP65 rated. Output voltage and constant current level can be adjusted through internal potentiometer B-Type: IP67 rated and built-in 3 in 1 dimming function (1~10VDC, PWM signal, or resistance) C-Type: Terminal block for I/O connection Blank-Type: IP67 rated. Cable for I/O connection D-Type(option): IP67 rated. Timer dimming function, contact MEAN WELL for details (safety pending for 150~240W)

7 years warranty

General Specification

AC input voltage range	90~305VAC ; 127~431VDC
AC inrush current (max.)	Cold start, 70A at 230VAC
DC adjustment range	±6% rated output voltage
Current adjustment range	50%~100%
Over current protection	95%~108% constant current limiting, auto-recovery
Over voltage protection	110%~140% rated output voltage
Setup, rise, hold up time	2500ms, 80ms, 15ms at full load and 230VAC
Withstand voltage	I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG: 0.5kVAC
Working temperature	-40~+70ºC (refer to output derating curve)
Safety standards	UL8750, TUV EN61347-1, EN61347-2-13, PSE J61347-1, J61347-2-13 (except for C-Type) approved; UL1012, UL60950-1
EMC standards	EN55015, EN55022 class B, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2,3,4,5,6,8,11, EN61547
Connection Input	UL rated, SJTW 18AWGx3C (30cm);
Connection Output	A/D/Blank-Type: SJTW 14AWGx2C (30cm) ; B-Type: SJTW 14AWGx2C (30cm)+SJTW 18AWGx2C (30cm); C-Type: Terminal block
Dimension (LxWxH) (mm)	252x 90x 43.8

Specifications

Brand

Mean Well
Series

HLG Series
Power Rating

320 Watt
Output Voltage

42 Volt
Rated Current

7.65 Ampere
Input Voltage

90V~305V
No of Output

1
Dimming Control

Built-in Potentiometer
Standards Met

CB,CCC,CE,EAC,PSE,RCM,TUV,UL
Operation Mode

Constant Current,Constant Voltage
Operating Temperature

-40°C~90°C
Warranty

7 Year
Length

9.92 in
Width

3.54 in
Height

1.72 in
Weight

4.14 lb

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Frequently Asked Questions

Can I use the HLG-320H-42A for 42V LED horticultural or grow light applications?

Yes. The adjustable output lets you fine-tune current delivery within the 21-42V constant-current range to match your grow light panels. At 320W, it can power substantial LED horticultural arrays. Its wide 90-305VAC input accommodates different facility power configurations.

Is the HLG-320H-42A suitable for powering 42V LED architectural facade lighting?

It works well for facade lighting where the load requires voltage or current adjustment. The built-in potentiometer allows optimization for specific LED fixtures, and 320W handles large architectural lighting runs. Mount the driver in a sheltered enclosure to respect the IP65 rating.

Can I use the HLG-320H-42A for a 42V LED panel array in a commercial space?

Yes. The adjustable output is especially useful when driving multiple 42V LED panels that may have slightly different characteristics. At 320W output, it supports large panel arrays for offices, retail, or exhibition spaces. The wide 90-305VAC input also simplifies installation in different countries.

How many meters of 42V LED strip can the HLG-320H-42A handle?

The HLG-320H-42A provides up to 320W at 42V. Divide 320W by your strip's rated wattage per meter. For instance, a strip at 14W/m would allow about 22.8 meters (320W / 14W per meter). Always verify your strip's rated power per meter and keep total load within 320W.

Is the HLG-320H-42A suitable for a semi-exposed outdoor mounting location?

Its IP65 water-resistant rating protects against dust and low-pressure water jets, making it suitable for semi-exposed locations like covered patios, equipment closets, or ventilated outdoor enclosures. For fully exposed outdoor installations where submersion is possible, consider the IP67-rated HLG-320H-42 or -42B.

What does the 'A' suffix mean on the HLG-320H-42A compared to the base HLG-320H-42?

The 'A' suffix indicates a built-in potentiometer for adjusting output voltage and current. The base HLG-320H-42 has fixed output and IP67 waterproof rating. The -42A drops to IP65 water-resistant but gains the ability to fine-tune output within the 21-42V constant-current range. Both deliver the same 320W, 42V, 7.65A at default settings.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well HLG-320H-24 Power Supply 320W 24V	320W	24V	13.34A	IP67	$81.83	View
Mean Well HLG-320H-24B Power Supply 320W 24V- Dimmable	320W	24V	13.34A	IP67	$81.04	View
Mean Well HLG-320H-12 Power Supply 264W 12V	264W	12V	22A	IP67	$78.41	View
Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable	320W	48V	6.7A	IP67	$81.04	View
Mean Well HLG-320H-24A Power Supply 320W 24V - Adjustable	320W	24V	13.34A	IP65	$93.02	View
Mean Well HLG-320H-12A Power Supply 264W 12V - Adjustable	264W	12V	22A	IP65	$88.06	View
Mean Well HLG-320H-42B Power Supply 320W 42V- Dimmable	320W	42V	7.65A	IP67	$96.14	View

Mean Well HLG-320H-42A Power Supply 320W 42V - Adjustable