During technical comparisons, MDR-20-5 appears alongside Weidmuller Power Supply, Meanwell Drdn20 24 and SMPS Bihar so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Meanwell MDR-20-5 DIN Rail Power Supply
The Meanwell MDR-20-5 Power Supply offers 20W, 5 output voltage, 3A, DIN rail Power Supplies. Manufactured by Meanwell under the Meanwell MDR-100-48 Power Supply category, this model belongs to the MDR series.
| Brand | Meanwell |
| Product Type | Power Supply |
| Model Number | MDR-20-5 |
Meanwell MDR-20-5 DIN Rail Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Series | MDR |
| Description | AC-DC Industrial DIN rail power supply; Output 5Vdc at 3A; plastic case |
| Application | Installation UL 508ITE EN/UL/IEC 60950 |
| Technology | AC/DC |
| Power Format | DIN rail |
| Output Power (W) | 20 |
| Output Voltage (V) | 5 |
| Output Current (A) | 3 |
| Input Voltage (V) | 110/230 universal input90 - 264 |
| IP Rating | No IP assigned |
| Width (mm) | 22.5 |
| Height (mm) | 90 |
| Depth (mm) | 100 |
| Dimming Technology | No Dimming |
| Control Signals | DC OK |
The Meanwell MDR-20-5 is a space-efficient AC-DC DIN rail power supply offering a regulated 5V DC output at 3A, totaling 20W of power, specifically designed for low-voltage applications in industrial control systems. It supports a wide input voltage range of 90–264V AC, allowing use in both 110V and 230V systems globally. This unit comes in a compact plastic enclosure with dimensions of 22.5 mm width, 90 mm height, and 100 mm depth, making it ideal for modular and space-constrained control cabinets.
The device complies with global industrial and IT safety standards, including UL 508ITE and EN/UL/IEC 60950. Although it does not have an IP rating, it performs reliably in protected indoor environments. It features a built-in DC OK signal for monitoring voltage output and quick fault detection. With no dimming feature, the MDR-20-5 SMPS is optimized for clean, uninterrupted 5V output for sensitive components such as logic boards, relays, and communication modules.
The Meanwell MDR-20-5 SMPS is ideal for powering industrial sensors, control logic circuits, 5V relay drivers, and compact embedded systems. Its slim DIN rail design and 3A output make it suitable for low-power automation tasks within smart panels, monitoring systems, and data acquisition modules. Electrical engineers choose this model for its stable performance, safety certification, and fault indication via the DC OK signal. Students and control system designers will find it a reliable example of how low-voltage AC-DC conversion is used in real-world industrial automation. Whether you're designing a compact system or upgrading your existing panel, the Meanwell MDR-20-5 SMPS ensures efficient 5V power delivery with high reliability and easy integration.
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