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Rectangular metal power supply unit with cooling fins, IP67 rated, B-Type dimming cables visible

Mean Well

Mean Well HLG-240H-54B 54V 4.45A 240W B-Type LED Power Supply

SKU CH-PSS1-H6JZH

Delivers 240 W at 54 V with up to 94 % efficiency, IP67/IP65 rated for indoor or outdoor LED lighting, and built-in 3-in-1 dimming

  • TypeAT
  • High efficiency up to 94 % reduces energy waste
  • IP67 and IP65 ratings suit indoor or outdoor installations
  • Active PFC function improves power factor
  • Universal AC input up to 305 VAC covers global voltages
  • 4 kV surge immunity meets IEC61000-4-5

Purpose and audience

The Mean Well HLG-240H-54B is a 240W single-output LED switching power supply designed for lighting professionals and installers. It delivers a constant 54V at 4.45A for LED arrays in street lighting, architectural and industrial applications. The unit suits projects that require a rugged driver rated for both indoor and outdoor environments.

Bundled functions

The B-Type variant adds a built-in 3 in 1 dimming interface that accepts 1~10VDC, PWM signals or resistance control without extra modules. Output current is adjustable to match different LED loads. Active PFC is integrated, and the driver meets 4kV surge immunity per IEC61000-4-5. Protection circuits cover short circuit, over current, over voltage and over temperature.

Build and connections

An IP67 and IP65 rated enclosure allows permanent mounting in exposed locations while cooling by free air convection eliminates fan noise and moving-part wear. Universal AC input up to 305VAC supports global mains voltages. The HL classification permits use in Class I, Division 2 hazardous location luminaires. Cable-based I/O connections simplify wiring on site.

Najważniejsze cechy

  • High efficiency up to 94 % reduces energy waste
  • IP67 and IP65 ratings suit indoor or outdoor installations
  • Active PFC function improves power factor
  • Universal AC input up to 305 VAC covers global voltages
  • 4 kV surge immunity meets IEC61000-4-5

Specyfikacja

TypeAT

Pytania dotyczące tego produktu

How often should the internal electrolytic capacitors be checked or replaced in the HLG-240H-54B?

The unit has no user-serviceable parts; capacitor life depends on operating temperature and load, so inspect for bulging or leakage during routine maintenance intervals.

At what output level does thermal protection engage during continuous 240W operation?

Over-temperature protection triggers when internal components exceed safe limits, reducing output or shutting down until the unit cools.

What is the typical heat rise and fan noise when the supply runs at 54V 4.45A all day?

Cooling is by free air convection with no fan, so noise is silent; case temperature rises with ambient and load but stays within IP67-rated limits.

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