Ventilation speed controller Transformer

• IP40 enclosure • Five speed stepped control • Illuminated on/off switch (single phase units only) • Fitted Transformer Protection type D MCB (single phase units only) • Suitable for operating temperatures up to 40°C • Ideal for environments where noise is a primary consideration as these controls do not create magnetic hum associated with some step-less forms of speed control Overview A range of transformer voltage controllers used to provide five speed step control of single phase or three phase motors where the peak current of the motor does not exceed the rating of the controller. Speed control is via selector switch. Single phase units are complete with illuminated on/off switch.