Maintenance teams planning replacements for ELECTRIC-ATS22C21Q frequently review Lenze VFD, Schneider Modicon M580 PLC and Magelis HMI Software to prevent downtime, checking availability and compatibility with existing systems.
Schneider Electric ATS22C21Q Variable Speed Drive
The Schneider ATS22C21Q Variable Speed Drive offers a RS485 multidrop interface, 0.4...1 Icl adjustable output current, 195…484 V supply voltage limit, and 1 RJ45 connection. Manufactured by Schneider under the Schneider Variable Speed Drive category, this model belongs to the Altistart22 Series.

| Brand | Schneider |
| Product Type | Variable Speed Drive |
| Product | ATS22C21Q |
Schneider ATS22C21Q Variable Speed Drive – Technical Specifications
| Specification | Value |
|---|---|
| Discrete output type | Relay outputs R1 230 V running, alarm, trip, stopped, not stopped, starting, ready C/ORelay outputs R2 230 V running, alarm, trip, stopped, not stopped, starting, ready C/O |
| Physical interface | RS485 multidrop |
| Power dissipation in W | 117 W for standard applications |
| Motor power kW | 110 kW 400 V110 kW 440 V55 kW 230 V |
| [Uc] control circuit voltage | 230 V - 15...10 % 50/60 Hz |
| Shock resistance | 15 gn for 11 ms conforming to IEC 60068-2-27 |
| [Us] rated supply voltage | 230...440 V - 15...10 % |
| Operating position | Vertical +/- 10 degree |
| Supply frequency | 50...60 Hz - 10...10 % |
| Ambient air temperature for storage | -25…70 °C |
| Net weight | 33 kg |
| Minimum switching current | 100 mA at 12 V DC (relay outputs) |
| Package 1 Width | 40.000 cm |
| Connector type | 1 RJ45 |
| IP degree of protection | IP00 |
| Pollution degree | Level 2 conforming to IEC 60664-1 |
| Noise level | 56 dB |
| Range of product | Altistart 22 |
| Output current | 0.4...1 Icl adjustable |
| Depth | 299 mm |
| Height | 425 mm |
| Ambient air temperature for operation | -10…40 °C (without derating)40…60 °C (with current derating 2.2 % per °C) |
| Installed device | 31 |
| Utilisation category | AC-53A |
| Communication data link | Serial |
| Motor power range AC-3 | 55…100 kW at 200…240 V 3 phases110…220 kW at 380…440 V 3 phases |
| Network frequency | 45...66 Hz |
| Supply voltage limits | 195…484 V |
| Device connection | To the motor delta terminalsIn the motor supply line |
| Control circuit consumption | 20 W |
| Maximum switching current | 5 A 250 V AC resistive 1 relay outputs5 A 30 V DC resistive 1 relay outputs2 A 250 V AC inductive 0.4 20 ms relay outputs2 A 30 V DC inductive 7 ms relay outputs |
| Width | 206 mm |
| Product specific application | Pumps and fans |
| Network number of phases | 3 phases |
The Schneider ATS22C21Q is engineered to handle high-load motor starting operations with precision and safety. It supports motors rated at 55 kW at 230 V and up to 110 kW at 400 V and 440 V, ideal for pump and fan applications requiring smooth acceleration and torque control. The device operates on a 3-phase network with a supply voltage range of 230–440 V and frequency range of 50–60 Hz, providing flexibility across industrial environments.
Equipped with dual relay outputs (R1 and R2) for monitoring statuses such as running, alarm, trip, and starting, the ATS22C21Q enables real-time process control and alerts. Communication is managed via RS485 multidrop using an RJ45 interface, supporting integration with modern SCADA and PLC systems. It dissipates 117 W under standard load conditions and consumes just 20 W in steady-state control. Designed for vertical mounting, the unit measures 206 mm wide, 425 mm high, and 299 mm deep, with a total weight of 33 kg, making it compact yet robust.
Compliant with IEC 60068-2-27 shock standards and pollution degree 2 (IEC 60664-1), the Schneider ATS22C21Q can operate reliably in ambient temperatures up to 60 °C with derating. With IP00 protection and AC-53A category support, this soft starter is trusted in control panels for HVAC systems, water infrastructure, and process automation.
For advanced speed control, the Schneider Altivar 610 15kW Variable Speed Drive ATV610D15N4 offers energy-efficient motor management across variable load operations. It's widely used in pumping stations, ventilation systems, and process equipment where dynamic torque and speed adjustments are needed.
With smart diagnostics, EMC filtering, and Schneider EcoStruxure compatibility, the ATV610D15N4 ensures faster commissioning, preventive maintenance, and high reliability. It’s a preferred solution for applications requiring reduced downtime and long-term operational consistency.




