MDR-20-5 Industrial DIN Rail Mount Power Supply 5V 3A 15W is a highly efficient and exceptionally compact switching power supply engineered specifically for industrial control systems and building automation. Designed for quick and secure mounting onto standard DIN rails (TS-35/7.5 or TS-35/15), this unit delivers a stable 5V DC output, crucial for powering sensitive electronics like PLCs, sensors, and microcontrollers. Its narrow profile—at just 22.5mm wide—saves valuable space inside cramped control cabinets, making it a favorite for system integrators. The MDR-20-5 features built-in protection mechanisms against short circuits, overloads, and over-voltages, ensuring reliable operation even in harsh factory floor environments where consistent, regulated power is non-negotiable.
Key Features:
- Ultra-Slim Design: Its narrow 22.5 mm width conserves significant space in tight industrial enclosures and control panels.
- DIN Rail Compatibility: Easily and securely snaps onto standard TS-35/7.5 or TS-35/15 mounting rails for rapid installation.
- High Efficiency: Operates with high efficiency, which minimizes heat generation and reduces long-term energy costs.
- Full Protection Suite: Automatically protects against short circuit, overload, and over-voltage conditions, increasing system reliability.
- LED Indicator: Features a front-panel LED to instantly confirm the unit’s power-on status.
Technical Specifications:
- Input Voltage Range: 85 V AC to 264 V AC (or 120 V DC to 370 V DC)
- Output Voltage: 5 V DC
- Rated Current: 3.0 A
- Rated Power: 15 W
- Efficiency: ≈ 77%
- Working Temperature: -20°C to +70°C
- Insulation Voltage: 3 kV AC Input to Output
Mechanical Specifications:
- Mounting Type: DIN Rail (TS-35/7.5 or TS-35/15)
- Housing Material: UL 94V-0 Rated Plastic Enclosure
- Cooling: Free air convection (No fan required)
- Protection Rating: IP20 (Suitable for indoor cabinet installation)
Dimensions:
- Width: 22.5 mm
- Height: 90 mm
- Depth: 100 mm
- Weight: ≈ 0.15 kg
Pinout and Wiring:
- Input Terminals (L, N, FG): Connect Line (L), Neutral (N), and Frame Ground (FG) for the AC input power supply.
- Output Terminals (+V, +V, -V, -V): These terminals provide the regulated 5V DC output; wire the positive voltage (+V) and negative voltage (-V) to your loads. Multiple terminals allow for easier wiring distribution.
- Installation Note: Use appropriate wire gauges for the current rating and ensure secure clamping in the screw terminals to maintain low contact resistance.
Datasheet Reference:
Commonly Used in:
- Control Cabinets: Powering PLC modules, relays, and HMI displays within industrial panels.
- Building Automation: Supplying DC power to lighting controls, security systems, and environmental sensors.
- Machine Tooling: Providing low-voltage power for integrated electronic controls on manufacturing equipment.
Applications:
- 5V Logic Circuits: Delivering clean, regulated 5V to microcontrollers and single-board computers like Raspberry Pi used in industrial settings.
- Sensor Array Power: Supplying stable power to analog and digital sensors that require a precise 5V reference.
- Emergency Lighting Systems: Used as the main power source within small, critical lighting backup units.
Equivalent Models:
- DR-15-5: A slightly lower wattage (15W) alternative for less demanding applications.
- HDR-30-5: A similar ultra-slim model that provides a higher power output (30W) in the 5V range.
Package Includes:
- 1 x MDR-20-5 Industrial DIN Rail Mount Power Supply 5V 3A 15W
Additional information
| Weight | 150 g |
|---|







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