Megger 212159 - Megohmmeter / Insulation Tester - 1kV


The Megger MJ Series of insulation testers feature an analog display having four selectable test voltages of 100, 250, 500 and 1000 DCV, measuring insulation resistance up to 2000 MW, and an ohm range to 5000 W. Power for the model MJ159 is derived from a low-voltage, hand cranked generator which has been designed to be easy to turn even under full load conditions. The low-voltage generator is connected to an electronic inverter to provide a very stable test voltage. Accuracy of measurement is unaffected by variations in the generator cranking speed and the test voltage is maintained at its rated value.

Quality is crafted into every Major MEGGER® Insulation Tester, with excellent test voltage regulation, direct measurement readout and an external guard terminal to eliminate surface leakage current from the measurement. Four models are available for general purpose testing which include a low-voltage model. All are portable, self-contained instruments designed to give rapid and accurate measurements.


  • Features 4 different test voltages: 100, 250, 500 and 1000 DCV
  • 0.1 W - 2000 MW Insulation Resistance
  • MJ159 Power Supply: Low voltage brushless A.C. generator. Cranking speed between 130 rpm and 170 rpm
  • No scale multipliers
  • Multiple test voltages for spot and step voltage testing
  • Guard terminal to eliminate surface leakage current

Additional Info

  • 1,000V
More Information
Display Analog
Manufacturer Megger
Measurement 1000V
Power Hand-Crank
Rating CAT II-300V
Type Insulation Resistance Testers
Additional Skus MJ159
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