1、[Input Output Voltage and Current] The variable frequency drive uses 3 phase AC380V 50 60Hz input to 3 phase AC380V 0‑320Hz output, with 3.4A or 2.5A input output current. 2、[Heat Sink and Small Fan] Frequency inverter adopts a large heat sink with a small fan, and the small fan ensures low noise, quiet running while assisting good heat dissipation. 3、[Built in PID Control] Our variable inverter drive has built in PID controller (presettable frequency). Standard configuration RS485 communicating function, multiple communicating protocols are available. 4、[Humanized Designed Keyboard] Frequency inverter drive has humanized keyboard design, with reasonable layout and simple operation. The digital display is intuitive and clear. The detachable design is convenient for remote control. 5、[Wide Use] Variable frequency drive is wide used and suitable for speed control equipment such as CNC router, milling machine, drilling machine, mixer, extruder, ventilator, pump, grinder, etc.