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Mean Well

Mean Well PWM-120-24KN AC-DC Single output LED driver Constant Voltage (CV)

constant voltage PWM style output, built-in active PFC function, standby power consuption
SKU:
PWM-120-24KN
Please for Pricing
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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
  • Standards Met
    BSMI,CB,CE,EAC,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
    0.8 kg

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::specification::

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Frequently Asked Questions

Can the PWM-120-24KN control 24V LED lighting directly from a KNX building automation system?

Yes. The PWM-120-24KN has a built-in KNX interface, enabling direct integration with KNX networks for scene-based and zone lighting control without requiring a separate KNX-DALI gateway. It outputs 24V at 5A (120W) with a PWM-style constant voltage output for 24V LED strips.

Is the PWM-120-24KN suitable for outdoor or wet-location LED strip installations?

Yes. Its IP67 rating provides protection against dust and temporary water immersion, making it appropriate for outdoor enclosures and wet indoor locations. The -40°C to +90°C operating range accommodates demanding outdoor environments.

How many meters of 24V LED strip can the PWM-120-24KN drive?

The PWM-120-24KN delivers 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 check your strip's rated power per meter and maintain a 20% headroom margin.

Can I use the PWM-120-24KN for 24V LED strips in a KNX-controlled commercial building without additional gateways?

Yes. The integrated KNX interface eliminates the need for a separate KNX-DALI gateway, simplifying the installation. Standby power consumption is less than 0.5W, which is relevant in large commercial buildings with many drivers that may idle for extended periods.

Is the PWM-120-24KN appropriate for 24V LED signage in a retail environment controlled by KNX?

Yes. The 120W, 24V output can power 24V LED modules and strips used in illuminated retail signage. The KNX interface allows the signage lighting to be scheduled and dimmed as part of the broader KNX retail environment control system.

How does the PWM-120-24KN differ from the PWM-120-24 for a KNX lighting project?

Both deliver 120W at 24V/5A with IP67 protection. The PWM-120-24 uses built-in 3-in-1 dimming (PWM, 0-10V, resistance) and requires a separate gateway for KNX integration. The PWM-120-24KN has a native KNX interface built in, removing the need for that gateway and reducing the overall component count in a KNX installation.

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Mean Well PWM-120-24KN AC-DC Single output LED driver Constant Voltage (CV)
Mean Well

Mean Well PWM-120-24KN AC-DC Single output LED driver Constant Voltage (CV)

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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