MEAN WELL SDR Series Industrial DIN Rail Power Supply
Complete Portfolio: 75W to 960W | High Efficiency | 150% Peak Load Capability | Active PFC
High-Performance Power for Heavy Industry
The MEAN WELL SDR Series is a premium line of slim DIN rail power supplies engineered for industrial automation, motor controls, and electromechanical applications. Ranging from 75W up to 960W, this series is designed to handle demanding startup currents while saving valuable space on the DIN rail.
Core Industrial Advantages
- Massive Peak Load Capability: Specifically designed to drive inductive or capacitive loads, supporting 130% to 150% peak power for up to 3 seconds without triggering overload protections.
- High Efficiency & Active PFC: Achieves industry-leading efficiency (up to 94%) to reduce heat dissipation. Models from 120W and above feature built-in active Power Factor Correction (PFC).
- Slim DIN Rail Profile: Optimized narrow enclosures designed to snap easily onto TS-35/7.5 or TS-35/15 rails, leaving more room for adjacent control gear.
- Heavy-Duty Protections: Full suite of protections including Short Circuit, Overload, Over Voltage, and Over Temperature, plus UL508 certification for industrial control equipment.
SDR-75, SDR-120, & SDR-240 Specifications
The foundational models of the SDR line are ideal for general industrial control cabinets, offering robust performance in a highly compact form factor.
| Model Series | Max Rated Power | Peak Power (3 sec) | DC Output Voltages | Efficiency (Max) |
|---|---|---|---|---|
| SDR-75 | 76.8W | 112.5W (150%) | 12V, 24V, 48V | 90% |
| SDR-120 | 120W | 180W (150%) | 12V, 24V, 48V | 91% |
| SDR-240 | 240W | 360W (150%) | 24V, 48V | 94% |
SDR-480, SDR-480P, & SDR-960 Specifications
For heavy automation processes, servo motors, and centralized power distribution, the high-power SDR models deliver up to nearly 1000W of continuous power with massive surge headroom.
| Model Series | Continuous Power | Peak Power (3 sec) | Available Outputs | Special Feature |
|---|---|---|---|---|
| SDR-480 | 480W | 720W (150%) | 24V, 48V | High Efficiency (94%) |
| SDR-480P | 480W | 720W (150%) | 24V, 48V | Active Current Sharing (Parallel) |
| SDR-960 | 960W | 1248W (130%) | 24V, 48V | High Power / Paralleling |
Advanced Industrial Features
150% Peak Load Capability
Industrial motors, contactors, and capacitive loads demand huge inrush currents at startup. The SDR series is over-engineered to provide 150% of its rated power (130% for SDR-960) for up to 3 seconds. This eliminates the need to over-provision and buy a much larger power supply just to handle startup surges.
System Expansion & Monitoring
- Current Sharing (Paralleling): The SDR-480P and SDR-960 are equipped with active current sharing. You can parallel up to 8 units of the SDR-480P (7+1) to reach 3840W, or up to 4 units of the SDR-960 (3+1) to reach 3840W.
- DC OK Relay Contact: Available on SDR-120 and above. Provides a physical relay contact (e.g., 60Vdc/0.3A or 30Vdc/1A) that signals the system PLC if the power supply output falls out of tolerance.
Physical Dimensions (L * W * H)
The SDR series emphasizes a slim width to maximize available rail space in tight industrial enclosures.
- SDR-75: 32 * 125.2 * 102 mm
- SDR-120: 40 * 125.2 * 113.5 mm
- SDR-240: 63 * 125.2 * 113.5 mm
- SDR-480 / 480P: 85.5 * 125.2 * 128.5 mm
- SDR-960: 110 * 125.2 * 150 mm
