1. Introduction and Overview
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Mean Well LRS-150-24 constant voltage LED power supply. This unit is designed to provide a stable 24V DC output for various LED lighting applications, such as LED strips.
The LRS-150-24 features protection against overloads, overvoltages, and short circuits, ensuring reliable performance. Please read this manual thoroughly before installation and operation.
2. Safety Information
- Electrical Hazard: Installation should only be performed by qualified personnel. Disconnect power before any installation or maintenance.
- Proper Grounding: Ensure the unit is properly grounded to prevent electric shock.
- Ventilation: Do not obstruct ventilation openings. Adequate airflow is crucial for proper cooling and to prevent overheating.
- Indoor Use Only: This power supply is designed for indoor use in dry locations. Avoid exposure to moisture or extreme temperatures.
- Load Capacity: Do not exceed the maximum rated output power of 150W. Overloading can damage the unit and connected devices.
- Input Voltage Selection: The LRS-150-24 has an input voltage selection switch (115V/230V). Ensure the switch is set correctly for your local mains voltage before connecting power. Incorrect setting can cause damage.
3. Product Features
- Universal AC input / Full range (85-265 VAC)
- Constant voltage output: 24 VDC
- High efficiency and reliability
- Protections: Short circuit, overload, over voltage
- Compact size and low profile
- Cooling by free air convection
4. Specifications
| Parameter | Value |
|---|---|
| Model Number | LRS-150-24 |
| Input Voltage | 85 – 265 VAC |
| Output Voltage | 24 VDC |
| Output Power | 150 W |
| Output Current | 6.25 A |
| Dimensions (L x W x H) | 159 x 97 x 30 mm (approx. 16.5 x 10.3 x 3.5 cm) |
| Weight | 340 g |
| Mounting Type | Surface Mount |
| Compliance | IEC/EN 60335-1 (PD3), IEC/EN61558-1, -2-16 |
5. Setup and Installation
Follow these steps for proper installation of your Mean Well LRS-150-24 power supply. Ensure all power is disconnected before proceeding.
5.1 Input Voltage Selection
The power supply features a switch to select the input voltage. Before connecting the AC input, verify that the switch is set to the correct voltage (115V or 230V) for your region. Incorrect selection can lead to damage.
5.2 Wiring Connections
The power supply has clearly labeled terminal blocks for AC input and DC output. Use appropriate gauge wires for your application.
- AC Input (L, N, ⊗): Connect your mains AC power to the 'L' (Live), 'N' (Neutral), and '⊗' (Ground) terminals.
- DC Output (+V, -V): Connect your LED lighting load to the '+V' (Positive) and '-V' (Negative) terminals. Ensure correct polarity.
5.3 Installation Example (General Wiring)
The following video demonstrates the general wiring process for a similar 24V power supply. While the exact model may differ, the principles of connecting AC input and DC output to LED strips are applicable.
6. Operating Instructions
Once properly installed and wired, the Mean Well LRS-150-24 operates automatically. Ensure the connected LED load does not exceed 150W. The unit provides a constant 24V DC output.
- Power On: Apply AC power to the input terminals. The power supply will immediately provide 24V DC output.
- Power Off: Disconnect AC power from the input terminals to turn off the power supply.
- Overload Protection: If the load exceeds the rated power, the unit's overload protection will activate, potentially shutting down the output. Reduce the load and cycle power to reset.
7. Maintenance
The Mean Well LRS-150-24 power supply is designed for long-term, reliable operation with minimal maintenance. However, periodic checks can help ensure optimal performance:
- Cleaning: Ensure the unit's ventilation holes are free from dust and debris to maintain proper cooling. Use a soft, dry cloth or compressed air for cleaning.
- Connections: Periodically check all wiring connections to ensure they are secure and free from corrosion. Loose connections can cause intermittent operation or overheating.
- Environment: Confirm the operating environment remains within specified temperature and humidity ranges.
8. Troubleshooting
If you encounter issues with your LRS-150-24 power supply, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No output voltage | No AC input power | Check mains power, circuit breaker, and input wiring. |
| Incorrect input voltage switch setting | Verify the 115V/230V switch is set correctly for your region. | |
| Overload protection activated | Reduce the connected load. Disconnect AC power for 30 seconds, then reconnect. | |
| Output voltage unstable or flickering | Loose wiring connections | Secure all input and output wiring connections. |
| Overheating due to poor ventilation | Ensure adequate airflow around the unit. Clear any obstructions from ventilation holes. | |
| Unit is hot to the touch | Excessive load or poor ventilation | Reduce load or improve ventilation. Ensure ambient temperature is within operating limits. |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for warranty claims.
