Mean Well MDR-20-12 DIN Rail Power Supply 12V

Description:

The Mean Well MDR-20-12 AC/DC DIN Rail Power Supply is a compact industrial switching power supply designed to convert AC input voltage to a regulated 12VDC output. Commonly installed in PLC cabinets, control panels, machine automation systems, and industrial instrumentation requiring reliable low-power DC power conversion. Maintenance teams, OEMs, and system integrators use this power supply for equipment repairs, panel retrofits, and replacement of existing DIN rail-mounted power supplies. The MDR-20-12 provides 20W of output power with a 12VDC, 1.67A output rating and universal AC input.

Applications:

The Mean Well MDR-20-12 is designed to provide stable 12VDC power in industrial environments. It is commonly used in PLC systems, HMI panels, industrial sensors, communication equipment, and control cabinets where compact size and DIN rail mounting are required. The power supply features universal AC input, free-air convection cooling, and built-in protections against overload, overvoltage, and short circuits for dependable long-term operation.

Technical Specifications:

• Manufacturer Part Number (MPN): MDR-20-12
• Product Type: DIN Rail AC/DC Switching Power Supply
• Series: MDR-20
• Manufacturer: Mean Well
• Output Voltage: 12 VDC
• Output Current: 1.67 A
• Rated Output Power: 20 W
• Input Voltage Range: 85 to 264 VAC, 120 to 370 VDC
• Nominal Input Voltage: 100 to 240 VAC
• Input Frequency: 47 to 63 Hz
• Efficiency: Typical 80%
• Output Voltage Adjustment Range: 12 to 13.2 VDC
• Number of Outputs: 1
• Mounting Type: TS35/7.5 or TS35/15 DIN Rail
• Cooling Method: Free Air Convection
• Overload Protection: Yes
• Overvoltage Protection: Yes
• Short Circuit Protection: Yes
• No Load Power Consumption: <0.75 W
• Operating Temperature Range: -20°C to +70°C
• Dimensions (L × W × H): 100 × 22.5 × 90 mm (3.94 × 0.89 × 3.54 in)
• Isolation Voltage: 3 kV
• LED Power Indicator: Yes
• Certifications: CE, CB, cULus, TUV, RoHS
• Application Environment: Industrial automation, control panels, and machine control systems

Common Replacements:

• Mean Well MDR-40-12
• Mean Well HDR-30-12
• Mean Well NDR-120-12