The Schneider Electric ATS01N212QN is a compact DIN-rail mountable soft starter from the Altistart 01 series, rated for 12A at 380-415VAC 3-phase supply, suitable for motors up to 5.5kW (400V) or 2.2kW (230V). It provides controlled voltage ramp-up during motor starting to reduce mechanical stress, eliminate water hammer in pumps, and limit inrush current. The built-in bypass contactor minimizes heat dissipation after the motor reaches full speed. With Class 10 overload protection and IP20 rating, it is designed for simple, cost-effective soft starting of small asynchronous motors. Typical applications include small conveyor belts, fans, centrifugal pumps, compressors, mixers, and packaging machinery where reduced starting current and smooth acceleration are required without the cost of a full variable speed drive.
**Q: What is the difference between ATS01N212QN and ATV320 VFD?**
A: The ATS01 is a soft starter — it only controls voltage ramp during start/stop, and the motor always runs at full speed after starting. The ATV320 is a variable frequency drive (VFD) that can continuously vary motor speed. Soft starters are simpler and cheaper for applications that only need reduced starting current, while VFDs are for applications requiring speed control.
**Q: Can the ATS01N212QN be used with single-phase supply?**
A: No, the ATS01 requires 3-phase supply (342-457VAC). For single-phase applications, consider an appropriately rated single-phase soft starter or VFD.
**Q: How many starts per hour can this soft starter handle?**
A: The ATS01 series is rated for approximately 10 starts per hour under standard conditions. For higher duty cycles, consider the ATS22 or ATS48 series which offer higher thermal capacity.
