Now around the world are using the speed controllers to control and drive their electric motor such as frequency inverter and soft starter.This speed control get a good reputation to reduce electricity cost and high efficiency to drive electric motor.

Speed controller is low maintenance and have a long life span.It easy to install and user friendly to setup and setting the parameter.

The wiring for power supply and control circuit is not so complicated like conventional motor control.This post i want share some basic aspects for choose the suitable ac motor speed controller that we must consider when to buy or install it on our application.I hope this information can be the basic guideline. read more