Many engineers reviewing Meanwell MDR-40-12 also explore Weidmuller Power Supply, Meanwell Drdn20 24 and SMPS Bihar, ensuring they donβt miss strong alternatives before finalizing procurement decisions.
Meanwell MDR-40-12 DIN Rail Power Supply
The Meanwell MDR-40-12 Power Supply provides 12VDC output at 3.33A using AC/DC conversion technology and supports a universal 90β264VAC input for industrial automation. It features a DIN rail mount with a plastic case and compact size of 40mm width, 90mm height, and 100mm depth. This model from Meanwell belongs to the MDR-40 Series and is part of Meanwell Power Supply solutions designed for reliable industrial control systems.

| Brand | Meanwell |
| Product Type | Power Supply |
| Model Number | MDR-40-12 |
Meanwell MDR-40-12 DIN Rail Power Supply β Technical Specifications
| Specification | Value |
|---|---|
| Series | MDR |
| Description | AC-DC Industrial DIN rail power supply; Output 12Vdc at 3.33A; plastic case |
| Application | Installation UL 508ITE EN/UL/IEC 60950 |
| Technology | AC/DC |
| Power Format | DIN rail |
| Output Power (W) | 40 |
| Output Voltage (V) | 12 |
| Output Current (A) | 3.33 |
| Input Voltage (V) | 110/230 universal input90 - 264 |
| IP Rating | No IP assigned |
| Width (mm) | 40 |
| Height (mm) | 90 |
| Depth (mm) | 100 |
| Dimming Technology | No Dimming |
| Control Signals | DC OK |
The Meanwell MDR-40-12 Power Supply is an industrial-grade AC/DC converter delivering 12VDC 3.33A output with 40W rated power. It operates across a 90β264VAC input range and features a lightweight DIN rail plastic housing. Belonging to the MDR-40 Series, this model is widely used in control panels, automation cabinets, and industrial equipment requiring compact and efficient power solutions.
Ideal for conveyors, PLC systems, and machinery automation, the Meanwell MDR-40-12 provides stable voltage output and safe operation. Its compact design ensures easy integration into industrial enclosures, offering consistent performance and protection in environments where reliable power delivery is essential. The MDR-40-12 model serves as a 12V 3.33A power source within the MDR-40 product family. These sibling variants share the same DIN rail form factor and safety certifications but differ in voltage ratings for various automation needs.
The Meanwell MDR-40-12 Power Supply combines 12VDC 3.33A output, 90β264VAC input range, and 40W power capacity for dependable use in automation and control systems. With trusted Meanwell engineering, it ensures long-term stability and reliable performance in industrial environments across India.




