Isolated Automatic Transfer Switch

The isolation type dual power automatic transfer switch integrates switching and control logic to transfer loads between common power and standby power. It combines voltage detection, frequency detection, electrical and mechanical interlocking, automatic operation, remote electric control, and emergency manual control in one device.

As an Isolated Automatic Transfer Switch, it is suitable for AC 50Hz systems with rated voltage AC400V and working voltage 220V in distribution or generator networks. It can be used for utility-to-utility transfer, utility-to-generator transfer, and isolation of circuits or lines that are connected and disconnected infrequently.

• Integrated ATS design: Combines load switching, control logic, voltage detection, and mechanical interlocking without an additional controller.
• Isolation switch structure: Provides safe and reliable transfer with independent switching components and mechanical interlock support.
• PC class performance: Designed as a load switch type automatic transfer solution for normal and standby power supply systems.
• Multiple operation modes: Supports automatic control, electric remote control, emergency manual operation, and disconnected-position operation.
• Wide current coverage: Product current options cover 20A to 3200A, with frame sizes from 100A to 3200A.
• Flexible pole selection: Available in 3P and 4P configurations for different distribution requirements.
• Reliable transfer behavior: Motor-driven load isolation switch structure supports smooth, stable, and low-impact transfer.

This automatic transfer switch is designed for critical distribution systems where loss of power supply should be avoided or reduced.

• Hospitals, banks, and high-rise buildings
• Industrial and commercial distribution systems
• Utility-to-generator backup power systems
• Main and standby power distribution cabinets
• Automation systems requiring reliable power transfer
• Circuits that require isolation during infrequent switching or maintenance

• The operating handle is used for manual operation and should be used only after the electric lock is closed.
• The electric key lock controls internal circuit power and determines whether automatic, remote, or manual operation is available.
• The mechanical padlock mechanism is used for maintenance; when the switch is in the 0 position, it helps prevent accidental operation.
• The indicator shows three switch positions: I, 0, and II.
• Wiring modes include economic wiring below 100A, passive signal plus active terminal connection, fully automatic modes, generator signal output, remote manual control, and controller wiring.

When selecting a model, confirm the rated current, frame size, pole number, control voltage, source type, wiring mode, generator signal requirement, installation dimensions, and whether remote control or fully automatic operation is required. For high-current distribution systems, verify installation clearance and terminal connection requirements before ordering.

Need help selecting an isolation type ATS for your project? Send the rated current, pole configuration, control voltage, normal and standby power source, wiring mode, and order quantity. Our team can provide model guidance, technical data, wiring support, and quotation options.