Mean Well MDR-20-15 Power Supply Unit 20 W 15 V 1.34 A DIN Rail

The Mean Well MDR-20-15 Power Supply Unit 20 W 15 V 1.34 A DIN Rail is an AC-DC industrial power supply designed for stable and efficient performance in various automation environments. Housed in a durable plastic case, this unit provides a reliable 15 V output with a 1.34 A current rating, delivering a total power output of 20 watts. It is engineered for seamless mounting on standard DIN rails, making it a space-saving solution for electrical panels and control cabinets.

Advantages

This DIN rail power supply offers high reliability with an impressive mean time between failures of over 230,000 hours, ensuring long-term continuous operation. The wide AC input voltage range from 85 to 264 volts allows for versatile deployment across different global electrical standards. Featuring passive cooling, the unit operates quietly without the need for fans, which reduces mechanical wear and maintenance requirements. Furthermore, it complies with recognized safety standards including UL508 and TUV EN60950-1, providing secure and dependable power management.

Suitable for

• Industrial automation systems
• Electrical control panels
• Building automation and security installations
• Instrumentation and measurement equipment
• General DIN rail mounted electronic applications

When it may not be suitable

This power supply may not be suitable for applications requiring an output power significantly higher than 20 watts or a voltage other than 15 volts. It is also not designed for outdoor environments without an additional protective weatherproof enclosure.

Key specifications

• Power output: 20 W
• Output voltage: 15 V DC
• Output current: 1.34 A
• AC input voltage range: 85 to 264 V
• Mounting type: DIN rail
• Cooling type: Passive cooling
• Enclosure material: Plastic case

How to use

Mount the unit securely onto a standard DIN rail inside an appropriate electrical enclosure or control cabinet. Ensure that the input wiring from your AC power source is correctly connected to the corresponding terminal blocks, respecting local electrical codes and safety practices. Connect the output terminals to your 15 V load, ensuring the total current draw does not exceed 1.34 A. Verify all connections before powering on the system.

What to consider before purchase

• Verify that your load requirements match the 15 V and 1.34 A specifications.
• Ensure sufficient physical space inside your control panel for DIN rail mounting.
• Check that the operating environment adheres to the passive cooling and indoor use requirements.

Usage recommendations: Maintain adequate ventilation around the power supply unit within the control enclosure to optimize thermal performance and prolong operational lifespan.