5 step SpeedSwitch 15 (1.5A) – Stepped adjustment of motor speed on ventilators and heating elements. This type of adjustment is virtually noiseless and it is therefore ideal for adjustment of heater blower fan motors.
The unit is equipped with a speed changer. 5 steps of speed and 1 off position. The box is equipped with one green operation lamp which is illuminated in the 5 speed steps.
Prepared for connection of magnetic switch or damper which opens when the ventilator is running.
The controller is equipped with a thermo switch disconnecting the power in case the transformer overheats and reconnecting after cooling.
