The MEAN WELL WDR-120-24 is a high-performance industrial DIN rail mounted SMPS power supply designed for automation panels, PLC systems, industrial control cabinets, instrumentation, process equipment, and factory automation applications. Part of the WDR series, the unit provides a regulated 24V DC output at 5A with a total power rating of 120W. Its ultra-wide input range of 180–550VAC allows operation in both single-phase and two-phase industrial power systems. The power supply includes built-in protection against short circuit, overload, overvoltage, and overtemperature conditions, ensuring reliable operation in demanding environments. Designed for TS-35 DIN rail mounting, it features high efficiency up to 91%, free-air convection cooling, DC OK relay output, and industrial-grade EMC compliance, making it suitable for critical automation and control installations.
Product Specifications
| Specification | Details |
| Brand | MEAN WELL |
| Model | WDR-120-24 |
| Series | WDR-120 Series |
| Product Type | DIN Rail Power Supply |
| Power Supply Type | Industrial Switching Mode Power Supply (SMPS) |
| Mounting Type | DIN Rail TS-35/7.5 or TS-35/15 |
| Output Voltage | 24V DC |
| Rated Output Current | 5A |
| Output Power | 120W |
| Number of Outputs | Single Output |
| Output Voltage Adjustment Range | 24V – 29V DC |
| Input Voltage Range | 180 – 550VAC |
| DC Input Range | 254 – 780VDC |
| Input Frequency | 47 – 63Hz |
| Efficiency | Up to 91% |
| Cooling Method | Free Air Convection |
| Ripple & Noise | 120mVp-p |
| Line Regulation | ±0.5% |
| Load Regulation | ±0.5% |
| Voltage Tolerance | ±1.0% |
| Overload Protection | 105–130% Rated Output Power |
| Over Voltage Protection | Yes |
| Short Circuit Protection | Yes |
| Over Temperature Protection | Yes |
| DC OK Relay Contact | Built-In |
| Relay Contact Rating | 30V / 1A Resistive |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Working Humidity | 20–90% RH Non-Condensing |
| Protection Class | Industrial Grade |
| Safety Standards | UL508, IEC62368-1, EN62368-1 |
| EMC Standards | EN55032, EN61000-6-2 |
| Dimensions (W × H × D) | 40 × 125.2 × 113.5 mm |
| Weight | Approx. 0.65 kg |
| Application | Industrial Automation & Control Panels |
| Suitable For | PLCs, Sensors, Relays, Controllers, Instrumentation |
| Country of Brand Origin | Taiwan |
