Mean Well HLG-320H-42B Power Supply 320W 42V- Dimmable

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

10V PWM,1-10V,Resistance
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

File Downloads

::specification::

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Frequently Asked Questions

Can I use the HLG-320H-42B to power outdoor 42V LED strip lighting exposed to rain?

Yes. The HLG-320H-42B outputs 42V at up to 7.65A (320W) and carries an IP67 waterproof rating, so it can be directly exposed to rain, hose-down, or temporary submersion. Its aluminium casing and -40°C to +90°C operating range handle harsh outdoor conditions.

Is the HLG-320H-42B suitable for dimming 42V LED facade lighting?

Yes. The B suffix means this model has a dimming input (1-10V/PWM) without a built-in potentiometer. You can connect it to an external dimming controller for facade lighting scenes while keeping the waterproof IP67 enclosure intact for outdoor mounting.

Can the HLG-320H-42B drive 42V LED modules for outdoor channel-letter signs?

Yes. With 320W of output at 42V, it can handle large channel-letter arrays or cabinet signs. The IP67 rating makes it reliable in fully exposed outdoor sign installations, and its wide 90-305VAC input accommodates varying commercial mains voltages worldwide.

Can I install the HLG-320H-42B in a below-grade light well or near a fountain?

Yes. The IP67 rating means the enclosure withstands temporary submersion up to 1 meter of water depth. This makes it appropriate for light wells, fountain perimeters, or landscape lighting vaults where occasional flooding may occur.

How many meters of 42V LED strip can the HLG-320H-42B support?

That depends on the strip's rated power per meter. The HLG-320H-42B supplies up to 320W at 42V. For instance, if your strip draws 20W/m you could run up to 16 meters (320W / 20W per meter = 16m). Always check your strip's rated power per meter and keep total load at or below 320W.

What are the differences between the HLG-320H-42, 42A, 42AB, and 42B variants?

All four share the same 320W / 42V / 7.65A core specs. The base HLG-320H-42 has no output adjustment or dimming and is IP67 waterproof. The -42A adds a built-in potentiometer for output adjustment (IP65). The -42AB adds both adjustment and 1-10V/PWM dimming (IP65). The -42B provides dimming input only and retains the IP67 waterproof rating.

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-42A Power Supply 320W 42V - Adjustable	320W	42V	7.65A	IP65	$86.45	View
Mean Well HLG-320H-12A Power Supply 264W 12V - Adjustable	264W	12V	22A	IP65	$88.06	View