Features
- Suitable for 400V AC 50Hz power supply system with current ratings from 6 to 63 amps.
- Automatic transfer switch is available with 3 Pole or 4 Pole.
- ATS has overload, short circuit protection, and comes with function of output closing signal.
- With the function of normal power ON, dual power OFF, standby power ON.
- Adopting high performance micro circuit breaker, with circuit breaker breaking capacity and characteristics.
- Simple structure, easy & reliable operation, no noise, small impact, and long service life
- Suitable for the illuminating circuits of commercial buildings, shopping mall, banks, and high-rise buildings where the power supply can not be cut off for a long time.
Specification
Model | CHN-GCQ2 |
Use Category | AC-33iB |
Rated Operational Voltage Ue | 400V AC |
Rated Operational Frequency | 50Hz/60Hz |
Rated Operational Current Ie (Optional) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A |
Switching Control Voltage | 220V AC |
Rated Insulation Voltage Ui | 690V AC |
Service Life | Electrical | 1,500 Times |
Mechanical | 6,000 Times |
Rated Short-circuit Making Capacity Icm | 7.5kA |
Rated Ultimate Breaking Capacity Icu | 5kA |
Transfer Action Time | ≤3s |
Number of Poles (Optional) | 3-Pole or 4-Pole |
Rated Impact Withstand Voltage | 8kV |
Operation Mode | Auto & Manual |
Conversion Method | Auto switch and auto reset |
Display Function | LED indicator |
Environment | Altitude | < 2000m for the installation site |
Ambient Temperature | -5℃-+40℃, the average less than +35℃ for 24 hours |
Relative Humidity | RH≤ 50% at the maximum ambient temperature of +40℃; Higher relative humidity is allowable under lower temperature, for example, RH could be 90% at +20℃. (Please note that the measures shall be taken for the condensation occasionally with the temperature change.) |
Standards | Compliance to IEC947-6-1, GB/T140848.11 |
Pollution Degree | Class 3 |
Mounting Conditions | It shall be mounted on the place where has no impact and vibration, no snow and rain. The upper terminals are connected to power source, and downside terminals are connected to the load. The sloping angle against the vertical shall be less than 5°. The outer magnetic field around the mounting site shall not exceed 5 times of earth field. |
Weight | 2.3kg |
Dimensions | See below |
Dimensions

Type | Overall Dimensions (mm) | Mounting Dimensions (mm) |
L | W | H | L1 | W1 | Hole |
3-pole ATS | 185 | 137 | 118 | 165 | 122 | M6 |
4-pole ATS | 220 | 137 | 118 | 196 | 122 | M6 |
Wiring Diagram
• 3-Pole ATS
Note: For 3-Pole ATS transfer switch, the neutral lines of common power supply and standby power supply must be connected to the corresponding terminal 3 and terminal 6 respectively, otherwise the ATS can not be automatically switched.

• 4-Pole ATS

• ATS Output Indicator Terminal Wiring Diagram

Tips: What's dual power automatic transfer switch?
The automatic transfer switch (ATS) is a switch to transfer between two power sources. It is constituted by one or several change-over switching equipment and other necessary apparatuses. It is used to detect the power circuit. In addition, it changes over one or several load circuits from one power supply to the other power supply.
For the use of dual power automatic transfer switch, briefly, it is connected with one utility power and one backup power. When the utility power suddenly fails, it will be transfer to the backup power supply automatically through the ATS (at the small load, the backup power supply can be supplied by the generator) to enable the equipment to operate normally. The most common application is the elevator, fire protection and monitoring. The condition is the same to the UPS uninterruptible power supply of the bank. However, its backup is the battery set. It is used in some factories and mines or units with loads of class I category and class II category.
Low price and compact size dual power automatic transfer switch (ATS) with high-breaking mini circuit breaker, selectable rated operating current 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A, works at 400VAC 50Hz/ 60Hz power supply system, 3-pole or 4-pole ATS changeover switch, reliable automatic and manual operation, simple structure, easy operation and long service life.