Available. The Telemecanique ATV66D23N4 is a variable speed drive from the Altivar 66 series, designed for controlling asynchronous motors in industrial applications. This model offers a power rating of 18.5 kW (25 hp) and operates within a supply voltage range of 380 to 460 V, suitable for both 50 and 60 Hz frequencies. It provides a continuous output current of 33 A at 400 V and supports output frequencies up to 0.3 kHz. The drive features a nominal switching frequency of 2.5 kHz, with adjustable switching frequencies between 0.5 and 4 kHz, and up to 16 kHz with current derating. Communication is facilitated via an RS485 multidrop serial link supporting Modbus protocol. The device is housed in a NEMA 1 rated enclosure, ensuring protection against dust and water ingress. Dimensions are 415 mm in height, 234 mm in width, and 245 mm in depth, with a weight of 14 kg. This model has been discontinued as of December 31, 2001, with end-of-service on December 31, 2009.