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Rotavolt
Variable Transformers

Single and three phase versions come nine frame sizes, and ratings up to 60kVA

  • Maximum input voltage +6% of nominal, i.e. 240V models are continuously rated at 254V

  • Output voltage Continuously variable from 0 – 115% of input voltage

  • Load Power Factor. Any

  • Waveform distortion negligible

  • Environment –15 degC to +45 degC. For higher temperatures derate as shown.

    50 degC 60 degC 70 degC
    0.93 0.77 0.59

  • Surge rating

    Units up to2.5A (CO1 &CO2)
    6 times for 1 sec
    3 times for 1 min
    2 times for 5 mins

    All Larger models
    10 times for 1 sec
    3 times 1 min
    2 times 5 mins
  • Rated current This may be exceeded by 20% on parts of the track. Curves are available upon request

  • Mounting All models can be surface or panel mounted

  • Dimensions The height dimensions quoted in the table always excludes the knob and shaft.

  • Fixing where the table indicates three fixing points, these are equally spaced by 120 deg. Alternate fixings provided on some models.

  • Low torque operation, ideal for high speed servo applications and multi ganged units

  • Rugged construction for safe portable use and to eliminate transit damage.

  • Enclosure, all models supplied in open form, ventilated covers to IP20 can be provided if required.

  • Motorised units available


Overview | Key Features | Data Sheets

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