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Q2 CB-Class Automatic Transfer Switch (ATS) Built-in MCB/MCCB 100A-800A for Commercial & Industrial Use
Q2 series is a CB-class automatic transfer switch (ATSE) with built-in circuit breakers, designed for AC 50/60Hz, rated voltage up to 400V power supply systems. It automatically switches between normal power and backup power to ensure uninterrupted power supply for important loads.
With overcurrent, short-circuit and leakage protection functions, Q2 integrates switching and protection in one unit. It features compact structure, reliable interlock, stable performance and easy installation, widely used in buildings, small industry, commerce, infrastructure and emergency power supply systems.
Model Explanation
Q2 – □□□ / □P
- Q2: CB-class ATS series
- □□□: Rated current (100A ~ 800A)
- □P: Number of poles (2P / 3P / 4P)
Key Features
- CB-class design with built-in MCB/MCCB, with overcurrent & short-circuit protection
- Mechanical & electrical dual interlock, reliable anti-parallel protection
- Auto / manual / forced off operation modes
- Clear status indication, easy for monitoring and maintenance
- Compact structure, small size, DIN rail or fixed installation
- Stable switching, adjustable delay time as needed
- Wide current range from 100A to 800A, 2P/3P/4P optional
- Compliant with IEC 60947-6-1 & GB/T 14048.11
Normal Operating Conditions
- Ambient temperature: -25℃ ~ +40℃
- Altitude: ≤ 2000m
- Relative humidity: ≤ 95% (non-condensing)
- Indoor installation, no corrosive gas, flammable dust or strong vibration
Technical Parameters
| No. | Item | Unit | Value |
|---|---|---|---|
| 1 | Rated Voltage (Ue) | V | 400 |
| 2 | Rated Frequency | Hz | 50/60 |
| 3 | Rated Current (In) | A | 100,225,400,630,800 |
| 4 | Insulation Voltage (Ui) | V | 690 |
| 5 | Short-circuit Breaking Capacity | kA | 6~50 |
| 6 | Transfer Time | s | 0.2 ~ 3.0 |
| 7 | Mechanical Life | times | ≥ 8000 |
| 8 | Operation Mode | — | Auto / Manual / Forced Off |
| 9 | Protection Degree | IP | IP20, IP30 |
| 10 | Standards | — | IEC 60947-6-1, GB/T 14048.11 |
Typical Applications
Q2 CB-class ATS is widely used in places requiring both switching and overcurrent protection:
- High-rise buildings, residential quarters, shopping malls, supermarkets
- Schools, hospitals, banks, office buildings
- Small & medium industrial plants, factories, workshops
- Fire fighting, emergency lighting, security monitoring systems
- Mains & generator automatic switching for small power systems
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