1. Introduction
This manual provides essential instructions for the safe and efficient operation, installation, and maintenance of your WVAIUPIX S-1200-24 AC/DC Switching Power Supply. Please read this manual thoroughly before using the product and retain it for future reference. This power supply is designed to convert AC input voltage to a stable DC output voltage, suitable for various industrial and electronic applications requiring a 24V, 50A power source.
2. Safety Instructions
WARNING: Failure to follow these safety instructions may result in electric shock, fire, or serious injury.
- Ensure the input voltage matches the specified range (110V for this model) before connecting.
- Always connect the ground (FG) terminal to a proper earth ground.
- Do not operate the power supply in wet or damp conditions.
- Do not open the casing of the power supply. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Ensure adequate ventilation around the unit to prevent overheating.
- Disconnect power before making any connections or adjustments.
- Avoid touching live terminals.
3. Product Overview
The WVAIUPIX S-1200-24 is a high-efficiency AC/DC switching power supply. It features a robust design with active cooling and clearly labeled input/output terminals for ease of installation.

Figure 3.1: Front View with Output Terminals and Fan. This image displays the front panel of the power supply, highlighting the integrated cooling fan, the red positive (POS+) and black negative (NEG-) output terminals, and the V-ADJ screw for fine-tuning the output voltage.

Figure 3.2: Rear View with Input Terminals. This image shows the rear side of the power supply, featuring the screw terminals for AC input: Live (L), Neutral (N), and Frame Ground (FG). Ventilation grilles are also visible.

Figure 3.3: Side View. This image provides a side perspective of the power supply, illustrating its overall length and the side ventilation slots designed for heat dissipation.
4. Setup and Installation
Proper installation is crucial for the safe and reliable operation of the power supply.
- Mounting: Choose a stable, well-ventilated location for mounting the power supply. Ensure there is sufficient clearance around the unit for airflow, especially near the fan and ventilation grilles.
- Input Wiring (AC):
- Locate the input terminals labeled 'L', 'N', and 'FG' on the rear of the unit (refer to Figure 3.2).
- Connect the Live wire from your AC mains to the 'L' terminal.
- Connect the Neutral wire from your AC mains to the 'N' terminal.
- Connect the Frame Ground wire to the 'FG' terminal. This connection is essential for safety.
- Ensure all connections are tight and secure. Use appropriate gauge wiring for the expected current.
- Output Wiring (DC):
- Locate the output terminals labeled 'POS(+)' and 'NEG(-)' on the front of the unit (refer to Figure 3.1).
- Connect the positive lead of your load to the 'POS(+)' terminal.
- Connect the negative lead of your load to the 'NEG(-)' terminal.
- Verify that the load's voltage and current requirements are within the power supply's specifications (24V, 50A max).
- Ensure all connections are tight and secure.
- Voltage Adjustment: The output voltage can be fine-tuned using the 'V-ADJ' potentiometer located near the output terminals (refer to Figure 3.1). Use a small screwdriver to carefully adjust the voltage within the specified range if necessary. Do not exceed the maximum rated voltage of your load.
5. Operating Instructions
Once the power supply is properly installed and wired:
- Power On: Apply AC power to the input terminals. The internal fan should start, indicating operation.
- Verify Output: Use a multimeter to verify the DC output voltage at the 'POS(+)' and 'NEG(-)' terminals before connecting sensitive equipment.
- Connect Load: Connect your DC load to the output terminals. Ensure the load does not draw more than 50A.
- Monitoring: Periodically check the power supply for excessive heat or unusual noises. Ensure ventilation remains unobstructed.
- Power Off: To shut down, disconnect the AC input power.
6. Maintenance
The WVAIUPIX S-1200-24 power supply is designed for reliable operation with minimal maintenance. However, periodic checks can extend its lifespan.
- Cleaning: Ensure the ventilation grilles and fan are free from dust and debris. Use a soft brush or compressed air to gently clean these areas. Always disconnect power before cleaning.
- Connections: Periodically check all input and output wiring connections to ensure they remain tight and secure. Loose connections can cause arcing and overheating.
- Environment: Maintain a clean, dry, and well-ventilated operating environment. Avoid exposing the unit to extreme temperatures or humidity.
7. Troubleshooting
If you encounter issues with your power supply, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No output voltage / Unit not powering on | No AC input power; Loose input wiring; Internal fuse blown; Unit failure. | Check AC power source and connections. Ensure input voltage is correct. Verify wiring. If fuse is suspected, contact support. Do not attempt internal repairs. |
| Output voltage too low or unstable | Overload condition; Loose output wiring; V-ADJ setting incorrect; Unit malfunction. | Reduce load current. Check output wiring. Adjust V-ADJ potentiometer. If problem persists, contact support. |
| Overheating | Insufficient ventilation; Overload condition; Fan malfunction. | Ensure clear airflow around the unit. Reduce load. Check if the fan is operating. Clean fan and grilles. |
If troubleshooting steps do not resolve the issue, please contact WVAIUPIX customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | S-1200-24 |
| Input Voltage | 110V |
| Output Voltage | 24V DC (Adjustable) |
| Output Current | 0-50A |
| Output Power | 1200W |
| Output Frequency | 47-63Hz |
| Dimensions (L*W*H) | 291mm * 132mm * 68mm (approx. 11.46 x 5.20 x 2.68 inches) |
| Weight | 2.5 kg (approx. 5.5 lbs) |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact WVAIUPIX customer service directly. Keep your purchase receipt as proof of purchase.
For further assistance, please visit the official WVAIUPIX website or contact your retailer.