... driver, available in 115V, 230V and 380VAC version, 100% controllable speed by 0-10V/PWM signal input. What is EC Motor? ... Brushless DC Motor with electronically commutated.What is the important part in EC Motor? motor ... External rotor motor, centrifugal fan, centrifugal blower, axial fan in HVAC,Tele-communication, refrigeration, clean room, IT industry and ...