Applied in ventilation systems for speed switching ON/OFF and speed control of the single-phase power-controlled motors. Several fans can be controlled synchronously in case their total current does not exceed the maximum permissible values for the controller current.
Design and control
Controller has the plastic casing with the control knob, ON/OFF button and pilot light. The controller is featured with high efficiency and control accuracy. Regulation starts from the minimum fan stable running voltage value to the maximum one. The minimum rotation speed is set by means of the potentiometer on the PCB.
Input circuit of the speed controller has a thermal fuse for overload protection. The controller is fitted with a transient filter.
The controller is designed for indoor wall mounting either on the wall (H modification) or through the wall (V modification).