Duncan Instruments Canada Ltd
Duncan Instruments Canada Ltd.
Electronic Measurement Solutions since 1968
ISO 9001


Dielectric Strength Tester / Hi Pots AVC-25V & AVC-50V

The model AVC-25V is the unit most frequency used by holders of CSA approval. The model has continuously adjustable output potential from zero to 2500 volts to cover practically all the test voltages called up by CSA, Ontario Hydro and UL for breakdown testing. The instrument is equipped with large High-Voltage, Power and Fault lamps, automatic cut-out, and continuously indicating high voltage voltmeter right across the test probe.



  • Input 120V, 60Hz, rated at 500Va
  • Adjustable output potantial from zero to 2500Vac (5000V ac for AVC-50V)
  • Indicator lamps for Power on, High Voltage on, Fault and Line Fault
  • Automatic cut -out
  • Continuously indicating high-voltage voltmeter
  • Safety device for incorrectly wired outlet
  • Reset button
  • Portable plug-in unit
  • Heavy-duty retractable probe
  • Made in Canada
Input 120V 60Hz
Output Adjustable 0-2500 V ac @95mA
Transformer Rated 500Va
Voltmeter 0-2500V ac Accuracy ±2% of full scale (AVC-25V), 0-5000V ac Accuracy ±2% of full scale (AVC-50V),
Trip Current Fixed @95mA ±5% (AVC-25V), Adjustable trip current 2-95mA (AVC-50V)
Indicators 4 Lights (Power-on, high-voltage-on, fault and line-fault
Control One on/off switch, one fuse, one reset push-button, one high-voltage adjust knob and safety device for faulty power outlet
Leads One input line-cord, one ground lead and one high-voltage lead c/w a retractable probe. Each is 2 meters (6ft) long
Size 11W x 6.5D x 6.5H inches (AVC-25V), 14W x 7D x 9.5H inches( AVC-50V)
Weight 9 kg (20 lb) - AVC-25V, 11kg (25 lb) - AVC-50V

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