MotorsAll motors are IP65 (1) Class F (2) with thermal protection (3) and ball bearings greased for life.Electrical supply:-Single phase 230V-50Hz (Capacitor located inside the wiring terminal box).-Three phase 400V-50Hz.(See characteristics chart).All single phase models are speed controllable by voltage except HCTB/4- 560, HCTB/4-630.All three phase models are speed controllable by autotransformer, except models HCTT/4- 560, HCTT/4-630, Ø 710 to 1000.Three phase models, 1 speed motor, are speed controllable by inverter.(1) 800 to 1000 models are IP55.(2) Air stream temperature limits -40ºC to +70ºC (except models 800 to 1000 suitable for usage in environments from -20ºC to 40ºC).(3) 800 to 1000 models are not equipped with thermal protection.AplicationsIndustrial process ventilation, agricultural facilities, swimming pools and data centers.HCTT ATEXATEX versions available for 3 phase models. For ambient working temperatures from -20ºC to +40ºC.Motors IP55, class F.- ATEX Flameproof - Gas:In standard ATEX version flameproof motors are without thermal protection.If used with frequency inverter, flameproof motors with a PTC-type thermal protection must be specified at order.Only available for 800 to 1000 modelsII 2G Ex d IIB T4II 2G Ex d IIB+H2 T4 (with motor Ex d IIC T4)- ATEX Increased safety – Gas:II 2G Ex e II T3- ATEX - Dust:In standard ATEX version, ATEX motors for dust are without thermal protection.If used with frequency inverter, ATEX motors for dust with a PTC-type thermal protection must be specified at order.Only available for 800 to 1000 modelsSuspended flammable particles and non-conductive dust:II 3D Ex tc IIIB T125ºCConductive dust:II 3D Ex tc IIIC T125ºC (with IP65 motor)To select HXTT ATEX refer to performance data or EASYVENT.Note electrical data may vary for ATEX motors.