1020B-3 Staco Variac Variable Transformer

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Variac / 240/ 480VAC Three Phase Input / 0-560VAC Output / 3.5A / Manual Operated.

  • $1552.00
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1020B-3 VARIAC® Variable Transformer,

480VAC Three Phase Wye 50/60 Hz Input;
0-480VAC L to L or 0-560VAC L to L Output (depending on wiring);
 (60 Hz only with stepped up voltage output)
 3.5 Amps Maximum;
Manually operated;
Open version (no case).


The customer can also wire for the following:

240VAC Three Phase Wye 60 Hz Input;
0-561VAC L to L Output;
 3.5 Amps @ 0-300VAC Output;
 2 Amps @ 430VAC Output;
 1.8 Amps @ 480VAC Output;
 1.5 Amps @ 560VAC Output;

This model can be used on 400 Hz with the same ratings as stated above.


Note: This is a (3) ganged transformer (3 coils on a common shaft). A three phase WYE source (with Neutral) is recommended.  Contact ISE technical support regarding use on a DELTA source.

Additional Information

1020B-3 Drawing

Visit 1000-1200 Variable Transformer for additional details

Click to contact ISE with questions or models not listed.  Custom units are available.

ISE VARIAC®

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Quality for Over 75 Years.
Not an Inferior, Low Quality, Imported Imitation.

    • Weight
      36 lbs
    • SKU
      1020B-3
    • Mnf#/Vendor#
      1020B-3
  • Manufacturer
    Staco Energy Products
  • Made In USA
    Yes
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