1. Introduction
The NLQ1 Series Dual Power Automatic Transfer Switch (ATS) is designed to automatically switch between a common power source and a backup power source. This ensures continuous power supply to critical loads, effectively solving power outage issues. It features self-switching and self-resetting capabilities, along with overload and short circuit protection. The switch supports both manual and automatic operation modes.
2. Specifications
| Feature | Specification |
|---|---|
| Product Name | Dual Power Automatic Transfer Switch |
| Model Number | NLQ1-63 / NLQ1-125 |
| Poles Number | 2P, 3P, 4P |
| Rated Current | 63A, 125A (Optional) |
| Working Voltage | 220V / 380V (Optional) |
| Working Frequency | 50Hz / 60Hz |
| Conversion Time | 1-2 Seconds |
| Operation Mode | Manual / Automatic |
| Electrical Level | CB |
| Type | Mini |
| Certification | CE |
| Is Smart Device | No |
| Origin | Mainland China |
2.1. Product Dimensions
3. Safety Information
- Installation and maintenance should only be performed by qualified electricians.
- Always disconnect power from both common and backup sources before installation or servicing to prevent electric shock.
- Ensure all wiring connections are secure and comply with local electrical codes.
- The device is designed for indoor use in a dry environment.
- Do not operate the switch if it appears damaged.
- The shell is made of high-quality flame retardant material, but proper ventilation should still be maintained.
4. Installation
The NLQ1 Series ATS is designed for fixed installation using screws. Refer to the product dimensions for appropriate mounting space. Ensure adequate clearance for wiring and operation.
4.1. Wiring Diagrams
Carefully follow the wiring diagrams below for your specific pole configuration (2P, 3P, or 4P). Incorrect wiring can lead to malfunction or electrical hazards.
- NLQ1-63/2P: Connect Common Fire Wire, Common Zero Line, Backup Live Wire, and Spare Neutral Line to the respective terminals. Output connects to the load.
- NLQ1-63/3P: Connect Common Live Wires (1, 2, 3), Common Neutral Line, Backup Live Wires (1, 2, 3), and Spare Neutral Line to the respective terminals. Output connects to the load.
- NLQ1-63/4P: Connect Common Live Wires (1, 2, 3), Common Neutral Line, Backup Live Wires (1, 2, 3), and Spare Neutral Line to the respective terminals. Output connects to the load.
Ensure all connections are tight and insulated. After wiring, double-check all connections before restoring power.
5. Operation
The NLQ1 Series ATS offers both manual and automatic operation modes.
5.1. Mode Selection
Locate the red switch on the front panel. This switch allows you to select between 'Auto' (Automatic) and 'Manual' operation. The indicator lights ('Un Non' for Common Power, 'Ur Ron' for Backup Power) will show the active power source.
5.2. Automatic Mode
In 'Auto' mode, the switch will automatically detect the presence of the common power supply. If the common power fails, the ATS will automatically switch to the backup power supply within 1-2 seconds. When the common power is restored, the switch will automatically revert to the common power source.
Supplementary Explanation: The manual mode can be used to switch between common and backup power sources. The common power supply is typically AC220V power supply circuits, and the backup power source can be a main power generation machine or other power sources. The backup power supply can also be provided by an inverter to AC 220V. If using an inverter as a backup power source, it cannot replace batteries.
5.3. Manual Mode
In 'Manual' mode, you can manually switch between the common and backup power sources using the rotary handle. Turn the handle in the direction indicated by the arrow to select the desired power source. Ensure the switch is fully engaged in the selected position.
5.4. Product Overview Video
6. Maintenance
- Regular Inspection: Periodically check the switch for any signs of physical damage, loose connections, or overheating.
- Cleaning: Keep the switch clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquids or abrasive cleaners.
- Contact Check: The switch uses industrial silver contacts for improved lifespan. If frequent switching occurs, inspect contacts for excessive wear (by a qualified technician).
- Functional Test: Periodically test the automatic transfer function by simulating a power outage (e.g., by temporarily disconnecting the common power source) to ensure it switches correctly to the backup power.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Switch does not transfer automatically | 1. Switch is in 'Manual' mode. 2. No power detected from backup source. 3. Control circuit issue. | 1. Set switch to 'Auto' mode. 2. Check backup power supply and wiring. 3. Consult a qualified electrician. |
| No power to load after transfer | 1. Loose wiring connections. 2. Overload or short circuit tripped internal protection. 3. Faulty load. | 1. Check all wiring connections. 2. Reset the switch (if applicable) and check for overload/short circuit conditions in the load. 3. Test the load independently. |
| Indicator lights not working | 1. No power to the switch. 2. Faulty indicator light. | 1. Check power supply to the switch. 2. Contact support if power is present but lights are off. |
8. User Tips
- For optimal performance, ensure the rated current of the ATS matches or exceeds the maximum current draw of your connected loads.
- Consider installing surge protection devices upstream of the ATS to protect it and connected equipment from voltage spikes.
- If using an inverter as a backup power source, ensure it is capable of handling the total load and provides a stable AC output.
9. Warranty and Support
For specific warranty details, technical support, or service inquiries, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt as proof of purchase.