How to Use DIN Rail 12v 5a Power Supply: Examples, Pinouts, and Specs

The Meanwell MDR-60-12 is a robust and reliable DIN rail-mounted power supply unit (PSU) designed to provide a stable 12V output with a maximum current of 5A. This power supply is commonly used in industrial and automation applications, where it ensures consistent and efficient power delivery to various electronic components and systems.

The following table outlines the key technical specifications of the Meanwell MDR-60-12 power supply:

The following table provides the pin configuration and descriptions for the Meanwell MDR-60-12 power supply:

1. Mounting the Power Supply:

   • Securely mount the Meanwell MDR-60-12 on a DIN rail in your control panel or enclosure.

2. Connecting the Input:

   • Connect the AC line input (L) and AC neutral input (N) to the corresponding terminals on the power supply.
   • Ensure that the input voltage is within the specified range (85-264V AC).

3. Connecting the Output:

   • Connect the DC output positive (+V) and DC output negative (-V) to your load or circuit.
   • Ensure that the total load does not exceed the maximum output current of 5A.

4. Grounding:

   • Connect the frame ground (FG) terminal to the earth ground to ensure safety and reduce electrical noise.

• Ventilation: Ensure adequate ventilation around the power supply to prevent overheating. Avoid placing the power supply in enclosed spaces without proper airflow.
• Load Regulation: The power supply is designed to maintain a stable output voltage. However, ensure that the load connected to the power supply does not exceed the maximum rated current of 5A.
• Safety: Always follow proper safety procedures when working with AC mains voltage. Ensure that the power supply is disconnected from the mains before making any connections.

1. No Output Voltage:

   • Solution: Check the input connections to ensure that the AC line and neutral are properly connected. Verify that the input voltage is within the specified range.

2. Overheating:

   • Solution: Ensure that the power supply is mounted in a well-ventilated area. Check for any obstructions that may be blocking airflow. Reduce the load if it exceeds the maximum rated current.

3. Output Voltage Fluctuations:

   • Solution: Verify that the load connected to the power supply is stable and does not have sudden large current draws. Check for any loose connections on the output terminals.

Q1: Can the Meanwell MDR-60-12 be used with an Arduino UNO?

• A1: Yes, the Meanwell MDR-60-12 can be used to power an Arduino UNO. Connect the +V and -V terminals to the VIN and GND pins of the Arduino UNO, respectively.

Q2: What is the efficiency of the Meanwell MDR-60-12?

• A2: The efficiency of the Meanwell MDR-60-12 is approximately 86%.

Q3: What is the operating temperature range of the Meanwell MDR-60-12?

• A3: The operating temperature range is -20°C to +70°C.

Below is an example code to demonstrate how to use the Meanwell MDR-60-12 to power an Arduino UNO and control an LED:

// Define the pin for the LED
const int ledPin = 13;

void setup() {
  // Initialize the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Turn the LED on
  digitalWrite(ledPin, HIGH);
  delay(1000); // Wait for 1 second

  // Turn the LED off
  digitalWrite(ledPin, LOW);
  delay(1000); // Wait for 1 second
}

In this example, the Meanwell MDR-60-12 provides a stable 12V power supply to the Arduino UNO, which then controls an LED connected to pin 13. The LED will blink on and off every second.

By following this documentation, users can effectively utilize the Meanwell MDR-60-12 DIN rail power supply in their projects, ensuring reliable and efficient power delivery.