1. Safety Information
WARNING: To avoid danger of suffocation, keep this bag away from babies and children. Do not use this bag in cribs, beds, carriages, or playpens. This bag is not a toy.
Precautions:
- Do not place the device near flammable materials.
- Ensure adequate ventilation during operation.
- Disconnect from power and store properly when not in use for extended periods.
- Only for city power and Generator, not for PV system and Inverter.
2. Product Overview
The TOMZN TOQ6-63/2P is a PC class infrequent change-over switch designed for dual power supply systems. It features a two-station design, typically used for a main power source (e.g., city power) and a backup power source (e.g., generator). This Automatic Transfer Switch (ATS) is suitable for AC systems with 50-60Hz frequency and rated currents up to 63A.
Its primary function is to automatically switch to the backup power supply when the main power supply fails, ensuring uninterrupted power to the load. The switching speed is less than 50 milliseconds, minimizing power disruption.
Figure 2.1: Front view of the TOQ6-63/2P Automatic Transfer Switch, showing model, rated current, voltage, and control interface.
Key Features:
- Millisecond Switching (<50ms)
- Quick Switch Mechanism
- PC Level Performance
- Low Energy Consumption
- High Precision
- Flame Retardant Material
Figure 2.2: Visual representation of the key features of the TOQ6 Dual Power Switch.
3. Specifications
| Parameter | Value |
|---|---|
| Model Number | TOQ6-63/2P |
| Brand Name | TOMZN |
| Rated Working Current (Ie) | 63A |
| Rated Working Voltage (Ue) | AC220V / AC230V |
| Rated Insulation Voltage (Ui) | 690V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Control Voltage (Us) | AC220V 50Hz |
| Frequency | 50/60Hz |
| Poles Number | 2P |
| Class | PC Class (can be switched on and loaded without generating short-circuit current) |
| Rated Short-Circuit Current (Iq) | 50kA |
| Short Circuit Protection Device | RT16-00-63A (Fuse) |
| Contactor Change-over Time | <50ms |
| Operation Change-over Time | <50ms |
| Return Change-over Time | <50ms |
| Power Off Time | <50ms |
| Mechanical Life | ≥5000 Times |
| Electrical Life | ≥1500 Times |
| Usage Category | AC-31B |
| Dimensions (L x W x H) | 110mm x 68mm x 78mm |
| Installation | 35mm Din Rail |
Figure 3.1: Dimension diagram of the TOQ6-63/2P ATS, showing overall length, width, and height.
4. Setup
4.1. Installation Guidelines
- Before installation and wiring, ensure that a qualified electrical professional has read and understood this manual.
- Check the integrity of the ATS unit upon receipt. Verify the flexibility of the operating mechanism and the opening/closing status of each phase for both normal and backup power loads.
- Equip the ATS with suitable circuit breakers according to the installation requirements of your power distribution system to ensure personnel and equipment safety.
4.2. Wiring Diagram
Connect the equipment in accordance with the following wiring diagram. Ensure the input power supply is connected in the correct phase sequence.
Figure 4.1: Wiring diagram showing connections for Backup Power Supply (L, N), Common Power Supply (L, N), and Load.
4.3. Terminal Connections
- Terminal wiring area is suitable for wires from 1 to 25 mm².
- Wire connection screws are M5, with a recommended torque of 2.5 N·m.
4.4. Mounting
The TOQ6-63/2P is designed for 35mm standard DIN rail installation. It can be directly installed in household lighting distribution boxes or industrial control panels.
Figure 4.2: Example of the ATS installed on a 35mm standard DIN rail within a distribution box.
5. Operating
The TOQ6-63/2P offers both automatic and manual operation modes.
Figure 5.1: The ATS features a manual handle and a manual/automatic selector switch.
5.1. Automatic Operation
In automatic mode, the ATS continuously monitors the main power supply. If the main power supply fails, the equipment will immediately switch to the backup power supply. Once the main power supply is restored, the ATS will automatically switch back to it. This process occurs within 50 milliseconds, ensuring minimal interruption.
Figure 5.2: The ATS provides millisecond switching for uninterrupted power transfer.
5.2. Manual Operation
To operate the ATS manually, the mode selection switch must be set to the 'Manual' position. While manual operation allows for opening and closing, it does not guarantee the same precise switching speeds as automatic electrical operation. For safety and to prevent excessive wear on internal components, the selector switch should only be pulled to the manual position after all power has been cut off for inspection or maintenance. Avoid manual switching under load.
6. Maintenance
Regular maintenance ensures the longevity and reliable performance of your ATS. All maintenance and inspection tasks should be carried out by qualified professionals.
- Initial Inspection: The first maintenance and inspection should be performed within 6 months of initial use.
- Routine Inspection: After the initial inspection, perform maintenance and inspection at least once a year. In harsh installation conditions, increase the frequency of maintenance.
- Cleaning: Remove any dust accumulation from the unit.
- Contact Check: Inspect electrical contact parts for deformation or damage. Clean the contact surfaces to remove any rust, acidification, or dust, which can cause poor contact. Measure contact resistance if necessary.
- Moisture Check: If the ATS has been exposed to moisture or left unused for a long time, ensure it is thoroughly dried before powering it on.
- Insulation Resistance: After cleaning and drying, use a 500V megohmmeter to measure the insulation resistance between the normal power supply, AC power supply, load side, and two poles. The insulation resistance should not be less than 10 MΩ.
7. Troubleshooting
If you encounter issues with your TOMZN TOQ6-63/2P ATS, consider the following common troubleshooting steps:
- No Power Transfer:
- Verify that both the main and backup power sources are active and supplying voltage.
- Check all wiring connections according to the wiring diagram (Figure 4.1) to ensure they are secure and correctly terminated.
- Ensure the ATS is set to 'Auto' mode if automatic transfer is desired.
- Unit Not Responding:
- Check the control voltage supply to the ATS.
- Ensure all internal and external connections are secure.
- Overheating:
- Ensure there is adequate ventilation around the ATS unit.
- Verify that the connected load does not exceed the rated current of 63A. Overloading can cause excessive heat.
- Unusual Noises or Smells:
- Immediately disconnect power to the unit.
- Inspect for any loose components, damaged wiring, or signs of burning. Contact a qualified electrician for further inspection.
For complex issues, it is recommended to consult a qualified electrician or contact customer support.
8. User Tips
- Voltage Protection: It is highly recommended to install a voltage relay (e.g., 250-190V range) upstream of the ATS to protect it from voltage fluctuations.
- Manual Operation Safety: Never attempt to manually switch the lever or the auto-manual rocker when the unit is under load or connected to a live power source (e.g., a car battery system, if applicable). Always disconnect power first.
- Application Specifics: This ATS is designed specifically for switching between city power and a generator. It is NOT suitable for photovoltaic (PV) systems or inverters.
- Internal Isolation: The two power inputs are internally separated to ensure safe and proper operation.
- Smart Features: This device is not a smart device and does not support integration with apps like Ewelink or Tuya.
9. 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. Keep your purchase receipt as proof of purchase.