How to Use Mean Well HDR-100-12N: Examples, Pinouts, and Specs

The Mean Well HDR-100-12N is a 100W, 12V DC power supply designed for industrial applications. It features a compact DIN-rail mountable design, high efficiency, and robust protections, making it ideal for powering industrial control systems, automation equipment, and other DC-powered devices. With its wide input voltage range and reliable performance, the HDR-100-12N is a versatile and durable solution for demanding environments.

• Industrial automation and control systems
• Building automation and HVAC systems
• LED lighting systems
• Security and surveillance equipment
• Test and measurement devices

The HDR-100-12N features screw terminal connections for input and output. Below is the pin configuration:

1. Mounting: Secure the HDR-100-12N onto a DIN rail (TS-35/7.5 or TS-35/15) in your control panel or enclosure.
2. Input Connection:
   • Connect the AC line (L) and neutral (N) wires to the input terminals.
   • Ensure the earth ground (⏚) is properly connected for safety.
3. Output Connection:
   • Connect the positive (+V) and negative (-V) terminals to your load or circuit.
   • Verify that the load does not exceed the maximum output current of 8.5A.
4. Power On:
   • After verifying all connections, apply AC power to the input terminals.
   • The power supply will regulate the output to 12V DC.

• Input Voltage: Ensure the input voltage is within the specified range (85-264 VAC or 120-370 VDC).
• Load Requirements: Do not exceed the maximum output power of 102W or the current limit of 8.5A.
• Ventilation: Install the power supply in a well-ventilated area to prevent overheating.
• Wiring: Use appropriately rated wires for both input and output connections.
• Protections: The HDR-100-12N includes built-in protections for overvoltage, overcurrent, and short circuit. However, ensure proper circuit design to avoid unnecessary stress on the power supply.

The HDR-100-12N can be used to power an Arduino UNO and other peripherals. Below is an example wiring setup:

1. Connect the +V terminal of the HDR-100-12N to the VIN pin of the Arduino UNO.
2. Connect the -V terminal of the HDR-100-12N to the GND pin of the Arduino UNO.
3. Ensure the Arduino's input voltage requirements (7-12V) are met.

// Example Arduino code to blink an LED
// Ensure the HDR-100-12N is properly connected to the Arduino UNO

const int ledPin = 13; // Built-in LED pin on Arduino UNO

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

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

1. No Output Voltage:

   • Verify that the input voltage is within the specified range.
   • Check all connections for proper wiring.
   • Ensure the load does not exceed the maximum output current.

2. Overheating:

   • Ensure the power supply is installed in a well-ventilated area.
   • Check for excessive load or short circuits in the output.

3. Intermittent Operation:

   • Inspect the input voltage for stability.
   • Verify that the load is not fluctuating beyond the power supply's capacity.

4. Output Voltage Too Low:

   • Confirm that the load is not drawing more current than the rated 8.5A.
   • Check for loose or corroded connections.

Q: Can the HDR-100-12N be used outdoors?
A: The HDR-100-12N is not weatherproof and should be installed in a dry, indoor environment or within a weatherproof enclosure.

Q: What happens if the load exceeds 8.5A?
A: The power supply's overcurrent protection will activate, shutting down the output to prevent damage.

Q: Can I use the HDR-100-12N with a DC input?
A: Yes, the HDR-100-12N supports a DC input range of 120-370 VDC.

Q: Is the HDR-100-12N suitable for sensitive electronics?
A: Yes, the HDR-100-12N provides a stable 12V DC output, suitable for most sensitive electronics. However, additional filtering may be required for extremely noise-sensitive applications.