CTH Controls Inc.
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Accurate to 0.2% of Reading

  • Accurate regardless of variations in voltage, current, power factor, or load
  • Available with 1-, 2-, 2½- or 3-element confi gurations
  • Bidirectional Watt/Watthours available
  • Leading/Lagging VARs/VARhours available
  • Accuracy maintained over wide temperature range
  • Calibration traceable to NIST
  • 5 year warranty

Model GH / VGH



The GH Watt/Watthour Transducer provides an analog output proportional to time-averaged instantaneous true power and a relay closure or TTL pulse output calibrated in terms of Watthours of energy consumption by the load. Accuracy is ±0.2% of reading.

A Model VGH VAR/VARhour transducer provides an analog output proportional to time-averaged instantaneous reactive power and a relay closure or TTL pulse output calibrated in terms of VARhours for reactive energy. Accuracy is ±0.2% of reading.

In addition, they are used extensively for sub-metering, generation control and appliance testing to verify compliance with federal standards.

Models are available in 1-, 2-, 2½-, or 3-element confi guration. Bidirectional Watt and Watthour or VAR and VARhour outputs are available.


  • Equipment monitoring for process control.
  • Integration into energy management systems or a variety of sub-metering applications.
  • Measurement using direct connections, current and/or potential transformersn.

Click here for the complete information in .pdf format

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CTH Controls Inc.   CTH Controls Inc.
5100 South Service Road, Unit 2
Burlington, ON. L7L 6A5 Canada
Phone: 905-792-6829
Toll Free: 1-888-550-6829
Fax: 905-792-6902
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