MotorsBrushless EC motor of direct current with high performance and low consumption, ball bearings and thermal protection included, supply230V±10% 50/60Hz (HXBR version) or 400V±10% 50/60Hz (HXTR version).Models from 200 to 450 have IP44 motor, the rest of them are IP54. Speed adjustable 100% via potentiometer located in the terminal (200-450 models) box or via external control REB-ECOWATT. Analogue input remote control with 0-10V external signal. Models from 500 to 630 have alarm relay, ON/OFF remote and communication via Modbus-RTU.Additional informationAir direction: form (A) configuration (motor over impeller).Working temperature from -20ºC to +50ºC.