During technical comparisons, DDR-120C-12 appears alongside Weidmuller Power Supply, Meanwell Sdr 240 24 and SMPS Bihar so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Meanwell DDR-120C-12 DIN Rail Power Supply
The Meanwell DDR-120C-12 Power Supply offers 120W, 12 output voltage, 10A, DIN rail Power Supplies. Manufactured by Meanwell under the Meanwell MDR-100-48 Power Supply category, this model belongs to the DDR series.

| Brand | Meanwell |
| Product Type | Power Supply |
| Model Number | DDR-120C-12 |
Meanwell DDR-120C-12 DIN Rail Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Series | DDR |
| Description | DC-DC Ultra slim Industrial DIN rail converter; Input 33.6-67.2Vdc; Single Output 12Vdc at 10A |
| Application | IT AV EN/UL/IEC 62368-1Railway EN 45545-2Transport EN 50155 |
| Technology | DC/DC |
| Power Format | DIN rail |
| Output Power (W) | 120 |
| Output Voltage (V) | 12 |
| Output Current (A) | 10 |
| Input Voltage (V) | 33.6 - 67.2 |
| IP Rating | No IP assigned |
| Width (mm) | 32 |
| Height (mm) | 125.2 |
| Depth (mm) | 102 |
| Dimming Technology | No Dimming |
| Control Signals | - |
The Meanwell DDR-120C-12 SMPS belongs to the DDR series and is built to convert DC input voltages between 33.6V and 67.2V into a clean, stable 12V DC output at 10A, making it ideal for battery-based control systems, mobile automation, and embedded electronics. With a total output power of 120W, this converter uses advanced DC/DC technology to deliver power efficiently and consistently in environments where AC sources are not available. Certified to global safety standards like EN/UL/IEC 62368-1 for AV/IT, EN 45545-2 for railway fire safety, and EN 50155 for transport electronics, it is built for performance under demanding industrial and transport conditions.
Measuring just 32mm in width, 125.2mm in height, and 102mm in depth, the DDR-120C-12 is optimized for DIN rail mounting in compact enclosures. Although it has no IP rating, it performs reliably in dry, enclosed, vibration-prone environments like mobile control boxes, railcars, or machine cabinets. It operates silently with no dimming technology and no moving parts, reducing noise and mechanical wear. This model does not include control signals, keeping the design minimalistic and focused on power stability. To explore its protections, operating temperature range, and electrical behavior under load, refer to the official Meanwell DDR-120C-12 datasheet.
The Meanwell DDR-120C-12 SMPS is widely used in railway control systems, onboard electronics, electric vehicle panels, and DC-only industrial setups. Engineers select it for applications that demand compact 12V power supplies with enhanced compliance, high reliability, and zero fan noise. Its slim profile makes it easy to retrofit into existing panels without requiring layout changes. For maintenance technicians, its DIN rail form factor ensures quick installation and replacement. Engineering students and trainees studying transport-grade electronics benefit from analyzing this unit's safety approvals and behavior in battery-powered logic systems.
If your system requires compact, certified, and vibration-resistant power, the Meanwell DDR-120C-12 SMPS is engineered to meet your 12V DC conversion needs with maximum efficiency and global compliance. Choose the Meanwell DDR-120C-12 SMPS for trusted performance in rail, transport, and automation projects.




