Sprite icons

Three-phase motor controls - 400 VAC

Transformer fan speed controllers for three-phase 400 VAC voltage controllable motors. They control AC fan speed by varying the motor voltage in steps. All models have a metal enclosure. Most of them are controlled manually. The advanced fan speed controllers have a digital input, alarm output and unregulated output. The STVS4 series are controlled via their analogue input.
Download catalogue
Report an error
Would you like to see all information available on our website? Please log in or register....
Log in
Obligatory(*)