1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the MEAN WELL HDR-150-48 Ultra Slim Step Shape LED DIN Rail Power Supply. Please read this manual thoroughly before using the product and retain it for future reference.
The HDR-150-48 is a high-performance, ultra-slim power supply designed for LED lighting and other industrial control applications requiring a stable 48V DC output. Its compact design allows for easy integration into DIN rail systems.
2. Safety Information
WARNING: Risk of electric shock. Installation and servicing should only be performed by qualified personnel.
- Ensure the power supply is disconnected from the main power source before any installation, wiring, or maintenance.
- Do not operate the unit in environments with excessive moisture, dust, or extreme temperatures outside its specified operating range.
- Verify correct input voltage and polarity before connecting the power supply.
- Ensure proper grounding to prevent electric shock.
- Do not open the casing of the power supply; there are no user-serviceable parts inside.
- Observe all local and national electrical codes during installation.
3. Product Overview
The MEAN WELL HDR-150-48 is an ultra-slim, step-shape power supply designed for efficient power conversion in various applications. It features a robust design suitable for DIN rail mounting.
3.1 Key Features
- Ultra slim design for space-saving installations.
- DIN rail mountable (TS-35/7.5 or TS-35/15).
- Universal AC input / Full range.
- Protections: Short circuit / Overload / Over voltage / Over temperature.
- Cooling by free air convection.
- LED indicator for power on.
3.2 Product Components
Refer to the images below for a visual representation of the HDR-150-48 power supply and its connection terminals.
Figure 1: Front view of the MEAN WELL HDR-150-48 power supply, showing the input/output terminals and status indicator.
Figure 2: Side view of the MEAN WELL HDR-150-48 power supply, highlighting its ultra-slim profile for DIN rail mounting.
Figure 3: Detailed view of the terminal block on the HDR-150-48, showing input (AC L, N, FG) and output (V+, V-) connections.
4. Specifications
The following table outlines the key technical specifications for the HDR-150-48 model.
| Parameter | Value |
|---|---|
| Model Number | HDR-150-48 |
| Output Voltage | 48V DC |
| Output Current | 3 Amps |
| Output Power | 154W |
| Input Voltage Range | 85 ~ 264VAC |
| Efficiency | Up to 90% |
| Dimensions (L x W x H) | 9.61 x 2.8 x 1.48 inches (244 x 71 x 37.5 mm) |
| Item Weight | 10.9 ounces (0.31 Kilograms) |
| Operating Temperature | -30 ~ +70°C |
| Mounting | DIN Rail TS-35/7.5 or TS-35/15 |
| Protections | Short circuit, Overload, Over voltage, Over temperature |
Note: Specifications are subject to change without notice. Refer to the official MEAN WELL datasheet for the most up-to-date and complete information.
5. Installation
Proper installation is crucial for the safe and reliable operation of the power supply.
5.1 Mounting
- Ensure the mounting surface is stable and capable of supporting the weight of the power supply.
- Mount the HDR-150-48 onto a standard TS-35/7.5 or TS-35/15 DIN rail.
- Allow adequate clearance around the unit for proper ventilation (minimum 10-15mm on all sides). Do not block ventilation holes.
- Mount the unit vertically to optimize heat dissipation.
5.2 Wiring
CAUTION: Disconnect all power before wiring. Incorrect wiring can damage the unit and pose a safety hazard.
- Identify the input terminals (AC L, AC N, FG) and output terminals (V+, V-). Refer to Figure 3 for terminal locations.
- Connect the AC input wires (Live and Neutral) to the respective AC L and AC N terminals.
- Connect the Earth Ground wire to the FG (Frame Ground) terminal. This connection is essential for safety.
- Connect the load to the output terminals: positive (+) to V+ and negative (-) to V-. Ensure correct polarity.
- Use appropriate wire gauges for the expected current draw to prevent overheating.
- Tighten all terminal screws securely to prevent loose connections.
Figure 4: Example of wiring connections for the HDR-150-48, showing input AC and output DC connections. Always refer to the specific terminal markings on your unit.
6. Operation
Once installed and wired correctly, the HDR-150-48 is ready for operation.
- Before applying power, double-check all wiring connections for correctness and security.
- Apply AC input power to the unit.
- The LED indicator on the front panel (refer to Figure 1) should illuminate, indicating that the power supply is operating.
- The output voltage is factory set to 48V. Some models may have a voltage adjustment potentiometer; if present, use a non-conductive tool to make minor adjustments within the specified range.
- Ensure the total load connected to the output does not exceed the rated output power of 154W or the rated current of 3A.
7. Maintenance
The HDR-150-48 power supply is designed for reliable, long-term operation with minimal maintenance.
- Cleaning: Periodically inspect the unit for dust accumulation, especially around ventilation openings. Disconnect power and use a soft, dry brush or compressed air to gently clean the exterior. Do not use liquid cleaners.
- Inspection: Regularly check wiring connections for tightness and signs of wear or damage. Ensure the unit is securely mounted on the DIN rail.
- Environment: Maintain the operating environment within the specified temperature and humidity ranges to ensure optimal performance and lifespan.
- No User Serviceable Parts: Do not attempt to open or repair the unit. Refer all servicing to qualified personnel.
8. Troubleshooting
If the power supply is not functioning as expected, consider the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No output, LED off | No input power; Incorrect wiring; Internal fault | Check AC input power source and connections. Verify wiring. If problem persists, unit may be faulty. |
| Output voltage too low or fluctuating | Overload; Short circuit; Input voltage too low | Reduce load. Check for short circuits in the output wiring. Verify input voltage is within range. |
| Unit is hot, shuts down intermittently | Overload; Insufficient ventilation; Over-temperature protection activated | Reduce load. Ensure adequate airflow around the unit. Check ambient temperature. |
| LED is on, but no output | Output wiring issue; Load fault; Internal fault | Check output wiring for breaks or loose connections. Test the load independently. |
If troubleshooting steps do not resolve the issue, contact qualified service personnel or the manufacturer for assistance. Do not attempt to repair the unit yourself.
9. Warranty and Support
This MEAN WELL product is covered by a standard manufacturer's warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and distributor. Please retain your proof of purchase for warranty claims.
For technical support, service, or warranty inquiries, please contact your local distributor or visit the official MEAN WELL website for contact information.
MEAN WELL Official Website: www.meanwell.com
