Mean Well LED power supply PWM-120-12KN KNX 120W 12V IP67

The MEAN WELL Brand – Experts in Sealed and Waterproof Power Supplies

MEAN WELL is a global leader in the production of sealed and waterproof switching power supplies. This brand's products are valued for their reliability, high efficiency, and safe operation. MEAN WELL power supplies are widely used in LED lighting, automation, industry, and telecommunications, wherever protection against moisture, dust, and harsh environmental conditions is required.

General Description of the PWM-120-12KNX Power Supply

The PWM-120-12KNX is a professional, sealed switching LED power supply with a power output of 120W and an output voltage of 12V DC. Equipped with a sealed plastic housing with an IP67 rating, it provides full waterproofness and dustproofness. The power supply supports a wide input voltage range of 90–305VAC or 127–431VDC, has an active PFC function and integration with the KNX building automation system, which enables central management of lighting in smart homes and offices. PWM technology ensures precise light intensity regulation and energy saving, while the constant output voltage guarantees stable operation of LED devices.

Main features of the PWM-120-12KNX power supply

• Hermetic, waterproof IP67 housing - full protection against moisture and dust
• Compact dimensions: 191 x 63 x 37.5 mm
• Constant output voltage 12V DC, current up to 10A
• Output power: 120W
• Universal input voltage: 90–305VAC / 127–431VDC
• High efficiency: up to 91%
• Active PFC function (Power Factor Correction) Correction)
• KNX interface for integration with building automation
• PWM and 3-in-1 dimming function (0–10VDC, PWM, resistor)
• Surge resistance up to 4kV
• Protections: short circuit, overload, overvoltage, thermal
• No-load power consumption <0.5W
• Passive cooling – no fan
• Class II insulation
• 5-year manufacturer's warranty
• Compliance with international standards: ENEC, CE, UL, EAC

Power supply application PWM-120-12KNX

The PWM-120-12KNX power supply is ideal for powering LED lighting systems (stripes, modules, panels), architectural, garden, industrial, and luminous advertising lighting. Its hermetic IP67 housing makes it suitable for locations exposed to moisture, dust, and splashes: facades, gardens, production halls, shop windows, and outdoor installations. Integration with KNX enables centralized lighting control in smart buildings, offices, hotels, and commercial properties. The power supply is also used in home automation, monitoring systems, HVAC, robotics, and anywhere that requires a stable, reliable 12V DC power supply and remote brightness control.

Frequently Asked Questions (FAQ) about the PWM-120-12KNX

• Is the PWM-120-12KNX suitable for outdoor use? Yes, the IP67 rating provides full protection against water and dust - the power supply is intended for outdoor installation and damp locations.
• What protection does this power supply have? Does it protect against short circuits, overloads, overvoltages, and overheating.
• What are the typical applications? Power supply for LED strips, modules, panels, advertising, architectural, garden, industrial lighting, automation and monitoring systems.
• Does the power supply support dimming? Yes, the KNX model supports PWM and 3-in-1 dimming: 0–10VDC, PWM, resistor.
• Is the power supply quiet? Yes, cooling is by convection – no fan.
• How long is the warranty? 5 years from the date of purchase.
• What are the