MEAN WELL CLG-150-48A 150W AC/DC Switching Power Supply User Manual

1. Introduction

The MEAN WELL CLG-150-48A is a high-performance 150W single output AC/DC switching power supply. It is engineered for reliability and efficiency, making it suitable for various applications, particularly in LED lighting and other industrial uses requiring a stable 48V DC output. This power supply features a robust, waterproof design and incorporates essential protection mechanisms to ensure safe and consistent operation.

Key Features:

• Output Current: 3.2A
• Output Voltage Range: 36V to 48V
• Suitable for street lamp and LED lighting applications
• Waterproof design (IP67 rated)
• Short Circuit Protection

2. Safety Information

Please read and understand all safety instructions before installing or operating this device. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Professional Installation: Installation should only be performed by qualified personnel in accordance with all applicable local and national electrical codes.
• Power Disconnection: Always disconnect the AC input power before performing any installation, wiring, or maintenance.
• Proper Grounding: Ensure the power supply is properly grounded to prevent electric shock.
• Ventilation: Ensure adequate ventilation around the unit to prevent overheating. Do not cover the power supply.
• Environmental Conditions: This unit is IP67 rated, suitable for dry, damp, and wet locations. However, avoid exposing it to extreme temperatures or corrosive environments beyond its specified operating range.
• Output Overload: Do not exceed the maximum rated output power of 150W. Overloading can damage the unit and pose a fire hazard.

3. Product Overview

The CLG-150-48A power supply features clearly labeled input and output terminals for straightforward connection. The unit's robust casing provides protection against environmental factors.

Image 3.1: Front view of the MEAN WELL CLG-150-48A power supply, showing the input (AC/L, AC/N, FG) and output (+V, -V) terminals, along with the voltage adjustment (Vo ADJ) potentiometer.

Key Components:

• INPUT Terminals: Connect to the AC mains power. Typically labeled AC/L (Brown), AC/N (Blue), and FG (Green/Yellow for Ground).
• OUTPUT Terminals: Provide the DC power to the load. Labeled +V (Brown) and -V (Blue).
• Vo ADJ: A potentiometer for fine-tuning the output voltage.
• Model Label: Displays model number, input/output specifications, and certifications.

4. Setup and Installation

Proper installation is crucial for the safe and efficient operation of the CLG-150-48A power supply. Refer to the mechanical specifications for mounting dimensions and wiring configurations.

4.1 Mechanical Specifications and Wiring

The CLG-150 series offers different types (A, B, C) with varying adjustment methods and wiring configurations. Ensure you identify your specific unit type for correct installation.

Image 4.1: Mechanical Specification for CLG-150-A type, featuring an internal potentiometer for output voltage/current adjustment.

Image 4.2: Mechanical Specification for CLG-150-B type, allowing output current adjustment via an external resistor connected to ADJ1 and ADJ2.

Image 4.3: Mechanical Specification for CLG-150-C type, with terminal block connections for input and output, and internal potentiometer for adjustment.

General Wiring Steps:

1. Disconnect Power: Ensure the main power source is OFF before beginning any wiring.
2. AC Input Connection: Connect the AC Live (L), Neutral (N), and Ground (FG) wires to the corresponding input terminals on the power supply. Use appropriate wire gauges for the current rating.
3. DC Output Connection: Connect the positive (+V) and negative (-V) output wires to your load (e.g., LED fixture). Observe correct polarity.
4. Mounting: Securely mount the power supply in a location that allows for adequate airflow and is protected from physical damage. Refer to the mechanical drawings for mounting hole dimensions.
5. Adjustment (if applicable): If your model has a voltage/current adjustment feature (Vo ADJ), make any necessary adjustments before applying full power. For Type A and C, this is an internal potentiometer. For Type B, an external resistor is used for current adjustment.
6. Verify Connections: Double-check all wiring connections for tightness and correct polarity before restoring power.

5. Operating Instructions

Once installed and wired correctly, operating the CLG-150-48A is straightforward.

1. Initial Power-Up: After verifying all connections, switch on the AC input power. The power supply should begin to deliver the specified DC output.
2. Output Adjustment: If your application requires a specific output voltage or current within the adjustable range, use the 'Vo ADJ' potentiometer (for Type A and C) or the external resistor (for Type B current adjustment) to fine-tune the output. Use a multimeter to monitor the output during adjustment.
3. Monitoring: Periodically check the power supply for any signs of abnormal operation, such as excessive heat or unusual noises.

6. Maintenance

The CLG-150-48A is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance.

• Cleaning: Keep the exterior of the power supply clean and free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquid cleaners or solvents.
• Connection Checks: Periodically inspect all input and output wiring connections to ensure they remain secure and free from corrosion.
• Environmental Check: Ensure the operating environment remains within the specified temperature and humidity ranges.
• No User-Serviceable Parts: Do not attempt to open or repair the power supply. There are no user-serviceable parts inside. Refer all servicing to qualified service personnel.

7. Troubleshooting

If you encounter issues with your CLG-150-48A power supply, refer to the following troubleshooting guide:

• No Output Power:
  • Check if the AC input power is connected and active.
  • Verify all input and output wiring connections are correct and secure.
  • Ensure the load is not short-circuited or drawing excessive current, which might trigger the overcurrent protection.
  • Check for any tripped circuit breakers or blown fuses in the AC input line.
• Incorrect Output Voltage/Current:
  • If your model has an adjustment feature (Vo ADJ), verify it is set correctly.
  • Ensure the load is within the specified operating range of the power supply.
  • Measure the output voltage with a multimeter to confirm the reading.
• Overheating:
  • Ensure the power supply has adequate ventilation and is not covered.
  • Reduce the load if it is close to or exceeding the maximum rated power.
  • Verify the ambient temperature is within the specified operating range.

If the problem persists after following these steps, discontinue use and contact technical support.

8. Specifications

Detailed technical specifications for the MEAN WELL CLG-150-48A power supply are provided below. For comprehensive data, refer to the official specification sheet.

Image 8.1: Excerpt from the MEAN WELL CLG-150 series specification sheet, detailing electrical characteristics and protection features.

Image 8.2: Block diagram, derating curve, and static characteristics for the CLG-150 series, illustrating internal design and performance under varying conditions.

9. Warranty and Support

For warranty information, technical assistance, or any product-related inquiries, please contact the manufacturer, MEAN WELL, or your product vendor, EverSale. Refer to your purchase documentation for specific warranty terms and contact details.

Manufacturer: MEAN WELL

Vendor: EverSale