Systemair MTP 20, 20K, Speed control

Potentiometer for speed control in 3-steps, Min 3-7V, Norm 5-9V, 10V - Combined flush or surface mounting For the manual control of speed and air flow of electrical fans with 0-10V output. The jetproof IP 54 enclosure is achieved with the included surface mounting case. (Flush-mounting without the surface mounting case,gives a splash proof IP 44 enclosure also suitable for highly demand environments as bathrooms etc).