VARIABLE AUTO-TRANSFORMERS SINGLE-PHASE CURRENTS:
They are used as well for testing equipments as for permanent installations. The output voltage is controlled by a serrated roller of adjustment. Control precise, possibility of higher output voltages on request (step-up transformer). All our models are studied to resist high temperatures, moisture and the shocks/vibrations mechanical.

THREE-PHASE VARIABLE AUTO-TRANSFORMERS:
Connection out of star or triangle side primary education and secondary. They are delivered star-connected and have an accessible neutral point.

VARIABLE AUTO-TRANSFORMERS MOTORIZE:
A synchronous motor is used to position the cursor; the engine is reversible thanks to a switch (not provided) and functions under 24VDC or 230VAC. Integrated switches of end of the road. We can also propose a chart of engine control 0-10VDC.

VARIABLE AUTO-TRANSFORMERS HOODS:
Entirely hooded, which offers a protection against the physical accidents and other problems. Generally they are used everywhere where an adjustable alternating voltage is necessary. The output voltage is controlled by a serrated roller of adjustment. The output voltage increases in a linear way when one turns the serrated roller in the direction of the needles of a watch. All the models are equipped with a cord with food and a luminous switch ON/OFF. Indication of the output voltage in volts on graduated disc.