Schneider ATS22C21S6 Soft Starter

Applications

• Used for starting large three-phase motors in water supply and wastewater treatment systems where gradual acceleration is preferred.

• Applied in ventilation and air handling equipment to provide smooth startup and reduce stress on fans and drive components.

• Installed in compressor systems to minimize mechanical impact during motor acceleration.

• Used in conveyor equipment to reduce belt tension and improve startup stability under varying loads.

• Applied in mixers, crushers, and other industrial machinery that benefit from controlled motor starting.

• Suitable for manufacturing plants and utility facilities where limiting motor starting current helps maintain stable power distribution.

Key Advantages

• Gradual motor acceleration helps reduce stress on shafts, couplings, and transmission components.

• Integrated bypass contactor improves operating efficiency after the startup sequence is completed.

• Adjustable starting and stopping parameters allow adaptation to different motor loads.

• Built-in protection functions help support reliable operation during everyday production.

• Stable performance makes it suitable for applications that require frequent motor starts.

• Compact cabinet design simplifies installation and maintenance.

Technical FAQs

Q1: What is the purpose of this soft starter?
It controls motor startup by gradually increasing voltage, helping reduce starting current and mechanical impact.

Q2: Which motors can it be used with?
It is intended for three-phase squirrel-cage induction motors.

Q3: Does it include an internal bypass?
Yes. An integrated bypass contactor is included to improve efficiency during normal operation.

Q4: Is it suitable for pump and fan applications?
Yes. It is commonly installed on pumps, fans, blowers, and compressors.

Q5: Can the acceleration time be adjusted?
Yes. Startup and stopping parameters can be configured according to the application.

Q6: What protection features are available?
It provides overload protection, phase monitoring, thermal monitoring, and fault indication.

Q7: Can it operate continuously?
Yes. It is designed for continuous industrial service.

Q8: Does it support communication?
Yes. Communication options are available for integration with automation systems.

Q9: Is it suitable for high-inertia loads?
Yes. It performs well in applications where motors require controlled acceleration under heavier loads.

Q10: Where is this model commonly installed?
It is widely used on pumps, conveyors, compressors, fans, and other industrial motor-driven equipment.