1. Introduction
The TOMZN TOQ7 Night Light series Mini ATS (Automatic Transfer Switch) is a PC-level, micro household power transfer switch designed to ensure a continuous, reliable, and safe power supply. It automatically switches between a primary power source (e.g., city power) and a backup power source (e.g., generator) when the primary source becomes abnormal, providing uninterrupted power to your connected loads. This manual provides essential information for the safe installation, operation, and maintenance of your TOQ7 ATS.
2. Important Safety Information
- Electrical Hazard: Installation and maintenance should only be performed by qualified personnel. Ensure all power sources are disconnected before working on the switch.
- Voltage: This product is designed for L+N 220V-240V, 50-60Hz systems. Do not use with incompatible voltages.
- Manual Operation: When performing manual operations, ensure the switch is in the "Manual" position to prevent unintended automatic transfers.
- Proper Wiring: Incorrect wiring can lead to equipment damage, fire, or electric shock. Follow the wiring diagram carefully.
- Environment: Install the device in a dry, well-ventilated area, free from excessive dust, moisture, and corrosive gases.
3. Product Overview
The TOMZN TOQ7 ATS is a compact and robust device featuring a dual power input system (Source A for City Power, Source B for Generator) and a single load output. It incorporates several safety and performance features:
- PC Level: Indicates high performance and reliability.
- Manual/Automatic Mode: Allows for flexible control over power transfer.
- Safe Arc Extinguishing Chamber: Designed to make product switching safer by effectively suppressing electrical arcs.
- Isolation Plates: Used for input and output terminals to enhance security and prevent accidental contact.
- Safety Shield: Provides protection against accidental contact with live parts.
- Industrial Silver Contacts: Improve service life and conductive performance.
- Din Rail Installation: Standard 35mm Din Rail mounting for easy integration into distribution boxes.
4. Specifications
| Feature | Specification |
|---|---|
| Brand | TOMZN |
| Model Number | TOQ7 |
| Type | Mini ATS |
| Poles Number | 2P (L+N) |
| Rated Current Options | 63A, 100A, 125A |
| Rated Working Voltage | AC 220V-230V, 50/60Hz |
| Rated Insulation Voltage | 690V |
| Rated Impulse Withstand Voltage | 8KV |
| Switching Time | <50ms |
| Action Time | <50ms |
| Electrical Life | 2000 times |
| Mechanical Life | 5000 times |
| Standard | IEC/EN60947-6-1 |
| Certification | CE |
| Installation | 35mm Din Rail |
| Is Smart Device | No |
| Origin | Mainland China |
| Dimensions (approx.) | 108mm (W) x 109mm (H) x 78mm (D) |
5. Installation
The TOMZN TOQ7 ATS is designed for 35mm standard Din Rail installation, making it suitable for direct mounting in household lighting distribution boxes.
5.1 Mounting
- Ensure the Din Rail is securely fastened within the distribution box.
- Align the ATS with the Din Rail and press firmly until it clicks into place.
5.2 Wiring Diagram
Follow the wiring diagram below for proper connection. It is crucial to ensure all power is OFF before attempting any wiring.
- Common Power Input (Source A): Connect your primary power source (e.g., city power) to the designated terminals.
- Backup Power Input (Source B): Connect your secondary power source (e.g., generator) to the designated terminals.
- Load Output: Connect your electrical loads to these terminals.
- Control Lines: Connect the common and backup control lines as indicated for automatic operation.
Note: When wiring, screw down to penetrate the insulating layer of the power lines for a secure connection. Manual operation must be in the "Manual" position during installation and wiring.
6. Operation
The TOQ7 ATS offers both manual and automatic operating modes.
6.1 Mode Selection
The device features a prominent red switch/handle on the front panel to select between modes:
- Manual Mode: In this mode, power transfer is controlled manually. This is typically used for maintenance or specific testing scenarios.
- Automatic Mode: In this mode, the switch automatically detects the status of Source A (City Power) and Source B (Generator) and transfers the load accordingly.
6.2 Automatic Transfer Function
When set to Automatic mode, the TOQ7 ATS continuously monitors the primary power source (Source A). If Source A becomes abnormal (e.g., power outage), the switch will automatically transfer the load to the backup power source (Source B) within 50 milliseconds, ensuring minimal interruption to your connected devices. When Source A is restored, the switch will automatically transfer the load back to Source A.
7. Maintenance
Regular maintenance helps ensure the longevity and reliable operation of your ATS.
- Visual Inspection: Periodically inspect the switch for any signs of damage, loose connections, or overheating.
- Cleaning: Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquids or abrasive cleaners.
- Connection Check: Ensure all wiring connections remain tight and secure. Loose connections can cause arcing and overheating.
- Functionality Test: Periodically test the automatic transfer function by simulating a power outage from the primary source (if safe to do so).
Always disconnect all power sources before performing any maintenance.
8. Troubleshooting
If you encounter issues with your TOMZN TOQ7 ATS, consider the following common problems and solutions:
- No Power to Load:
- Check if both primary (City Power) and backup (Generator) sources are active.
- Verify that the ATS is in "Automatic" mode if automatic transfer is desired.
- Inspect all wiring connections for looseness or damage.
- Check circuit breakers upstream of the ATS.
- ATS Not Transferring Automatically:
- Ensure the switch is firmly set to "Auto" mode.
- Confirm that the control lines are correctly wired according to the diagram.
- Verify that the primary power source is indeed abnormal (e.g., voltage drop, outage).
- Overheating or Burning Smell:
- Immediately disconnect all power.
- This indicates a serious electrical issue. Do not attempt to operate the device. Contact a qualified electrician.
For persistent issues, consult a qualified electrician or contact customer support.
9. User Tips
- Generator Sizing: Ensure your backup generator is adequately sized to handle the total load connected to the ATS.
- Regular Testing: Even if you don't experience frequent power outages, it's good practice to periodically test your ATS by simulating a primary power failure to ensure it functions correctly when needed.
- Clear Labeling: Clearly label your power sources (City Power, Generator) and load circuits in your distribution box for easy identification and safety.
- Professional Installation: While the wiring is described as 'DIY', for safety and compliance, especially with high current devices, professional installation by a certified electrician is highly recommended.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your vendor directly. Keep your purchase receipt as proof of purchase.
