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StacoVT Variable Transformers

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Staco Energy Products' full range of variable transformers offer the exceptional versatility and reliability required for so many of today's voltage control applications in both industrial and laboratory environments.

Unlike a standard fixed ratio transformer, a Staco variable transformer is designed to provide variable output voltage that can be adjusted from 0 to 117% of the unit's input voltage.

Staco Energy Products Co. offers a wide range of standard models including the following:

  • Panel mount, single phase (fixed and adjustable shaft)
  • Enclosed cord and plug
  • Metered
  • Fully enclosed
  • Ganged
  • Isolated
  • Isolated portable cord and plug models
  • "Quick-Step" motorized
  • Motor driven
  • Cased

A basic Staco variable transformer consists of a copper winding on a toroidal core of laminated, grain-oriented, silicon steel. A carbon brush, connected to an output terminal, is rotated over the length of a precision-ground, precious metal-plated, commutator track to tap off voltage at any turn from zero volts to the maximum output voltage of the winding.

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Thomas No.
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AUTOTRANSFORMER, RoHS Compliant, Type 3PN1010

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Thomas No.
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StacoVT Variable Transformer, Single, 240V 50/60 Hz

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