(C) Standard (CK) Includes an external terminal box for ease of connection.Long casing versions: (LK) Includes an external terminal box for ease of connection, and a spy phole to check impeller rotation. (LP) Includes an inspection door for easy access to motor. (LPK) Includes both external terminal box and inspection door.Soler&Palau Sistemas de Ventilación SLU certifies that this model is licensed to bear the AMCA Seal for Air Performance. The revision version is EasyVent v11, May 2020. Certification may be checked at AMCARefer to EasyVent to select the most suitable configurations for the installation, and obtain the corresponding datasheets.MotorsAvailable, depending upon the model:- with three phase motors in 2, 4 or 6 poles.- with three phase two speed motors 2/4,4/8, 4/6 or 6/12 poles.All the motors are IP55, Class F insulationElectrical supplies: Three phase 220-240/380-415-50/60Hz* up to 3 kW. TThree phase 380-415V-50Hz, for higher power motors and two speed motors. (*Check Easyvent for 60Hz available models)On requestCasing in stainless steel or paint finish.Motors provided with PTC thermistor or space heaters.