Belt-driven transmission system mounted external to the air stream. Motor mounted within the fan cabinet onto a specific support giving optimal belt tension.Supplied as standard in horizontal discharge (code H) or vertical (code V) configuration with motor, pulley and belt assembly on the right hand side of the unit when viewed from the discharge end.MotorsAll motors are IP55, class F insulation.Electrical supply:Three phase 230/ 400V-50Hz, up to 3 kW. 400V-50Hz, for higher motor powers.On requestMotor, pulley and belt assembly fitted on the left hand side of the unit when viewed from the discharge end (TI version). Two speed motors (4/8 and 4/6 poles). Single phase motors 230V-50Hz up to 2,2 kW. Single phase motor (CVHB) up to 2,2 kW.