(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.Suitable for horizontal or vertical mounting installation.Check EasyVent to select the most suitable configurations for the installation, and obtain the corresponding datasheets.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 AMCAMotorsAvailable, 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.F300-120 & F400-120 motors are IP55, class H insulation.Electrical supplies: Three phase 230/400V-50/60Hz* up to 3 kW. Three phase 380/415V-50Hz, for higher power motors and two speed motors. (See characteristics chart). (*60Hz versions available in EasyVent).Motors suitable for inverter control.In emergeny operation, no need for DOL or de-rating, as long as the VFTM range of VSds is used, and/or requirements defined in EN 12101-3 are followed.On requestCasing in stainless steel or paint finish.Motors provided with PTC thermistor or space heaters.