The Schneider Electric Altivar 61 Variable Frequency Drive (VFD) model ATV61HD11N4Z is an industrial‑grade motor controller designed for three‑phase asynchronous and synchronous motors. It is optimized for pumping and ventilation applications, offering smooth and energy‑efficient speed and torque control. The drive features integrated Level 3 EMC filtering for reduced electromagnetic interference, multiple control profiles including sensorless flux vector control, and adjustable switching frequency for quiet and efficient operation. Communication support through protocols such as CANopen and Modbus enables easy integration into automation systems. This unit is supplied without a remote graphic terminal (standard version) and is suitable for installation in control panels.