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Mean Well

Mean Well PWM-120-24DA Power Supply 120W 24V - DALI

PWM style output, fully isolated plastic case, IP67, Class II design without FG, DALI
SKU:
PWM-120-24DA
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Description

Features

Universal AC input (up to 305VAC) / Full range
Constant voltage PWM style output
Built-in active PFC function
High efficiency up to 90.5%
No load power consumption <0.5W
Protections: Short circuit / Overload / Over voltage / Over temperature
Fully isolated plastic case
Fully encapsulated with IP67 level
Class 2 power unit
Isolation class II, no F.G.
Built-in 3 in 1 dimming (dim-to-off);DALI
Suitable for dry, damp and wet location
Suitable for LED strip lighting
5 years warranty

General Specification 

AC input voltage range 90~305VAC ; 127~431VDC
AC inrush current (max.) Cold start, 60A at 230VAC
Overload protection 108%~120% hiccup mode, auto-recovery
Over voltage protection Shut down o/p voltage, re-power on to recover
Over temp. protection Shut down output voltage, re-power on to recover
Setup, rise, hold up time 500ms, 80ms, 16ms at full load and 230VAC
Withstand voltage I/P-O/P: 3.75kVAC
Working temperature -40~+90ºC (refer to output derating curve)
Safety standards UL8750, CSA C22.2 No.250.13-12,ENEC EN61347-1, EN61347-2-13 independent, EN62384 approved ; Design refer to EN60335-1
EMC standards EN55015, 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 SJTW 14AWG x2C (30cm)+UL24645 18AWG x2C (30cm)
Dimension (LxWxH) (mm) 191x63x 37.5
Packing 15pcs / 15.6kg

Specifications
  • Brand
    Mean Well
  • Series
    PWM Series
  • Power Rating
    120 Watt
  • Output Voltage
    24 Volt
  • Rated Current
    5 Ampere
  • Input Voltage
    90V~305V
  • Standards Met
    CB,CCC,CE,EAC,ENEC,UL
  • Operation Mode
    Constant Voltage
  • Operating Temperature
    -40°C~90°C
  • Warranty
    5 Year
  • Length
    19.1 cm
  • Width
    6.3 cm
  • Height
    3.75 cm
  • Weight
    0.97 kg

File Downloads

::specification::

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Frequently Asked Questions

Can the PWM-120-24DA be integrated into a DALI building management system for 24V LED lighting?

Yes. The PWM-120-24DA includes a DALI interface, enabling it to be addressed, grouped, and dimmed by any DALI-compliant building management or lighting control system. It outputs 24V at 5A (120W) with a PWM-style waveform compatible with 24V LED strips.

Is the PWM-120-24DA suitable for outdoor or wet-area LED strip lighting installations?

Yes. Its IP67 rating provides full dust protection and resistance to temporary water immersion, making it appropriate for outdoor enclosures and wet indoor applications. The -40°C to +90°C operating range covers extreme outdoor temperatures.

How many meters of 24V LED strip can the PWM-120-24DA support?

The PWM-120-24DA outputs up to 120W at 24V. For a 20W/m strip that supports up to 6 meters (120 ÷ 20); for a 14.4W/m strip, approximately 8.3 meters (120 ÷ 14.4). Always verify your strip's rated power per meter and apply a 20% derating margin.

Can the PWM-120-24DA be used for DALI-controlled 24V LED strips in a hotel lobby or conference room?

Yes. The DALI interface supports scene-based dimming and group control, making it well suited for hospitality and commercial spaces where multiple lighting zones need to be managed from a central DALI controller. The 120W, 24V output can drive the 24V LED strips typical of these environments.

Does the PWM-120-24DA support operation in outdoor installations during winter in cold climates?

Yes. With an operating temperature starting at -40°C, the PWM-120-24DA is rated for harsh winter climates. The IP67 enclosure also provides protection from rain, sleet, and temporary submersion.

How does the PWM-120-24DA compare to the PWM-120-24 and PWM-120-24DA2?

All three deliver 120W at 24V/5A with IP67 protection. The PWM-120-24 uses 3-in-1 dimming (PWM, 0-10V, resistance). The PWM-120-24DA uses the original DALI interface for integration into DALI lighting networks. The PWM-120-24DA2 upgrades to DALI2, adding bidirectional communication and enhanced device-type support.

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Mean Well PWM-120-24DA Power Supply 120W 24V - DALI
Mean Well

Mean Well PWM-120-24DA Power Supply 120W 24V - DALI

Please for Pricing

Features

Universal AC input (up to 305VAC) / Full range
Constant voltage PWM style output
Built-in active PFC function
High efficiency up to 90.5%
No load power consumption <0.5W
Protections: Short circuit / Overload / Over voltage / Over temperature
Fully isolated plastic case
Fully encapsulated with IP67 level
Class 2 power unit
Isolation class II, no F.G.
Built-in 3 in 1 dimming (dim-to-off);DALI
Suitable for dry, damp and wet location
Suitable for LED strip lighting
5 years warranty

General Specification 

AC input voltage range 90~305VAC ; 127~431VDC
AC inrush current (max.) Cold start, 60A at 230VAC
Overload protection 108%~120% hiccup mode, auto-recovery
Over voltage protection Shut down o/p voltage, re-power on to recover
Over temp. protection Shut down output voltage, re-power on to recover
Setup, rise, hold up time 500ms, 80ms, 16ms at full load and 230VAC
Withstand voltage I/P-O/P: 3.75kVAC
Working temperature -40~+90ºC (refer to output derating curve)
Safety standards UL8750, CSA C22.2 No.250.13-12,ENEC EN61347-1, EN61347-2-13 independent, EN62384 approved ; Design refer to EN60335-1
EMC standards EN55015, 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 SJTW 14AWG x2C (30cm)+UL24645 18AWG x2C (30cm)
Dimension (LxWxH) (mm) 191x63x 37.5
Packing 15pcs / 15.6kg
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