REO columns variable transformers with double brush system together with REO transformers are the perfect solution – the double performance is possible .

The waveform of the sine wave is preserved – like that,  EMC problems cannot occur over the entire operating range of 0 – 1000A.
All products in the series come with UL – listed materials .

The REO construction enables easy handling of the carbon rolls and the spindle – the copper-bevel gear allows a hysteresis-free adjustment of the output voltage even at high adjustment speed of the drive motor. Thus REO variable column transformers are perfect for high performance adjustment .

REO-column type variable transformers conform to EN 61558-2-14

• Closely stepped adjusting of output voltages
• Low-loss cores
• Vacuum impregnated windings
• Windings virtually maintenance free
• UL-listed materials
• Available in IP 00 and IP 20
• Wide range of accessories