Features This motor speed controller is suitable for AC220V 50/60Hz motors. Speed control range is 90-1400 RPM at 50Hz and 90-1700RPM at 60Hz Suitable for packaging, printing, food, electronics, instrumentation, medical equipment and clothing industry production lines for speed controlled drive devices The controller uses high-quality electronic circuits and integrated components for a long service life. It is characterised by small size, high precision, a large speed control range and a long service life. Features: This motor speed controller is suitable for AC220V 50/60Hz motors. The speed control range is 90-1400 rpm at 50 Hz, 90-1700 rpm at 60 Hz. Suitable for packaging, printing, food, electronics, instrumentation, medical equipment and clothing industry production lines for speed controlled drive devices. The controller uses high-quality electronic circuits and integrated components for a long service life. It is characterised by small size, high precision, a large speed control range and a long service life. Specifications:Power Supply:AC220V50/60HzRated Power:400WAmbient Temperature: -10~+50℃;Relative Humidity:<90%;Speed Control Range: 90-1400RPM 50Hz, 90-1700RPM 60HzWeight:295g Wiring method: the black cable is the main cable of the motor, the red and white cable are the auxiliary cables of the capacitor and two blue cables are the feedback cables for speed control, the green cable is the ground cable. Package includes: 1 x speed controller. Package List