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Westhomes WCQ2A CB industrial automatic transfer switch features 400V wide voltage operation, 20kA high breaking capacity, and 3P/4P flexible pole options with 100A-1250A wide current range.
Westhomes WCQ2A CB industrial automatic transfer switch features 400V wide voltage operation, 20kA high breaking capacity, and 3P/4P flexible pole options with 100A-1250A wide current range.
Engineered for industrial heavy-duty power switching, the Westhomes WCQ2A CB Automatic Transfer Switch delivers stable, fail-safe power conversion for critical systems. Supporting 400V AC operation, 20kA robust breaking capacity, and a wide 100A-1250A current spectrum with versatile 3P/4P configurations, this industrial-grade ATS ensures seamless, automatic switching between dual power sources.
Key Features：
Industrial-Grade Durability: Professionally built for heavy-duty industrial and renewable energy applications, featuring robust structural design and stable performance to adapt to harsh operating environments and long-term continuous operation.
High Breaking Capacity: Equipped with 20kA superior breaking capacity, providing excellent overcurrent and short-circuit protection to safeguard electrical equipment and circuit safety during power switching.
Wide Current & Voltage Compatibility: Covers a comprehensive current range from 100A to 1250A and supports stable 400V AC input operation, meeting diverse high-power industrial power distribution demands.
Seamless Automatic Power Transfer: Intelligent controller enables fast, smooth switching between dual power sources, eliminating power interruption and ensuring uninterrupted power supply for critical loads.
Applications:
Solar Power Systems
Industrial Manufacturing Facilities
Critical Power Infrastructure
Commercial & Public Facilities
| Phase | Single Phase, Three Phase |
| Number of Pole | 3P/4P |
| Type | CB |
| Brand Name | Westhomes |
| Voltage | 400V |
| Breaking Capacity | 20 kA |
| Application | Industrial Power |
| Place of Origin | Zhejiang, China |
| Model Number | WCQ2A |
| Selling Units | Single item |
| Quantity (pieces) | 1-2 | 3 – 1,000 | > 1,000 |
| Lead time (days) | 7 | 30 | To be negotiated |
For a closer look at automatic transfer switch, read How an Automatic Transfer Switch (ATS) Works with a Generator.
Westhomes WCQ2A CB Industrial ATS is an automatic transfer switch designed for industrial dual power supply systems. It automatically transfers electrical loads between the normal power source and standby power source when power failure, voltage abnormality, or other faults occur.
It is designed for AC 400V systems with 3P and 4P configurations, supporting rated currents from 100A to 1250A, making it suitable for industrial facilities, commercial buildings, and critical power applications.
The WCQ2A CB ATS continuously monitors the status of two power sources. When the main power supply becomes abnormal, the controller sends a signal to disconnect the failed source and connect the standby source automatically.
When the main power returns to normal, the ATS can automatically transfer the load back according to the preset parameters.
WCQ2A CB ATS is widely used in applications where uninterrupted power supply is required, including:
Industrial factories
Data centers
Hospitals
Commercial buildings
Energy systems
Infrastructure projects
It provides reliable power switching protection for critical electrical loads.
The Westhomes WCQ2A CB Industrial ATS is designed for AC 400V power systems.
The available current range is:
100A
225A
400A
630A
800A
1250A
with 3P and 4P configurations available.
The WCQ2A CB Industrial ATS uses circuit breaker-based switching technology, providing stronger protection capability compared with traditional contactor-type ATS.
It offers higher breaking capacity and better performance for industrial environments with high short-circuit risks.
Yes. WCQ2A ATS can be used between utility power and standby generators to automatically switch power sources during outages.
It is commonly applied in emergency power systems where continuous operation is required.
Westhomes WCQ2A CB Industrial ATS complies with international electrical standards including IEC/EN60947-6-1 and GB/T14048.11.
These standards ensure reliable performance, electrical safety, and operational stability.
A 3P ATS switches three phase lines and is suitable for standard three-phase loads.
A 4P ATS additionally switches the neutral line, making it suitable for systems with unbalanced loads or applications requiring complete isolation.
Yes. WCQ2A ATS supports automatic and manual operation modes.
The manual mode allows operators to control the power source switching during maintenance, testing, or emergency situations.
Westhomes WCQ2A CB ATS combines reliable switching performance, industrial-grade protection, and flexible configuration options.
With professional manufacturing experience and strict quality control, Westhomes provides dependable low-voltage electrical solutions for global customers.
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