Insulation Resistance

Megohmmeter or ‘Megger’ Tests the Effectiveness of Electrical Insulation

AEMC 6505
  • Test insulation on cables, transformers, motors, generators, insulators and wiring installations
  • High resistance or absorption tests
  • Timed resistance measurements
  • Dielectric absorption. Ratio (DAR) and Polarization Index (PI) tests
  • Test old or water damaged installations
    Motor insulation resistance measurements
Data Sheet
AEMC 5060
  • Test insulation on cables, transformers, motors, generators, insulators and wiring installations
  • High resistance or absorption tests.
    Spot reading tests
  • Timed resistance measurements
  • Dielectric (DAR) and polarization (PI) tests
  • Multi-layer insulation testing (DD)
  • Test old or water damaged installations over long time runs
  • Motor insulation resistance measurements
Data Sheet
AEMC 5050
  • Automatic voltage detection in all functions, before or during the measurement, which inhibits or stops the measurement
  • Automatic detection of external AC or DC voltages on the terminals
  • Threshold programming in each function, triggering audible alarms
  • Timed control of measurement duration
Data Sheet
Fluke 1550C


  • Test Voltages up to 5 kV
  • Selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V
    CAT III 1000 V, CAT IV 600 V safety rating
  • Capacitance and leakage current measurement
    Ramp function for breakdown testing
  • Resistance measurements up to 2 TΩ
Data Sheet
Fluke 1555


  • Test voltages to up 10 kV
  • Warning function alerts the user that line voltage is present and gives the voltage reading up to 600 V AC or DC for increased user safety
  • Selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V
  • Capacitance and leakage current measurement
  • Ramp function for breakdown testing
  • Resistance measurements up to 2 TΩ
Data Sheet
Megger MIT 1025


  • Measures up to 20 TΩ
    PI, DAR, DD, SV and ramp test
  • Advanced memory with time/date stamp
  • CATIV 600 V safety rating
  • Offering CAT IV, the MIT1025 is compact, light 10 kV insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment
Data Sheet
Megger MIT 525


  • Insulation resistance up to 10 TΩ
  • Li-ion battery for up to 6 hrs continuous testing
  • Advanced memory, on screen recall and real time clock for date / time stamped results
Data Sheet
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