Accurate Insulation Resistance Testing with the Megger MIT400 Series

Megger MIT410 Industrial Insulation TesterMegger’s MIT400 series testers are designed for electrical testing on power distribution facilities, commercial, domestic and telecommunication installations. These testers offer a wide range of functions and simple operation. They have selectable voltage outputs and dual digital/analog displays. Here is a comparison of the MIT400 series testers to help you decide which tester meets your needs.

Megger MIT400-EN Insulation Resistance and Continuity Tester

The MIT 400-EN has a maximum output test voltage of 1000 volts which makes it suitable for most commercial and residential testing applications. It can measure resistance up to 20 GΩ and has a live wire warning feature that alerts the user if the test sample has current flowing. This helps protect the user from injury and the tester from damage.

Product Features

  • Selectable output voltage of 250, 500 and 1000 Volts
  • Can measure resistance up to 20 GΩ
  • Displays INS test voltage
  • Continuity testing function from 0.01 to 100 Ω
  • Variable current limit
  • Live circuit warning feature at 50 Volts
  • Integrated voltmeter
  • Can measure TRMS 
  • Backlight
  • Test button with lock button
  • Automatic shut off function
  • Battery powered operation

Megger MIT410-EN Insulation Resistance and Continuity Tester

This Megger insulation tester has more output voltage selections than the MIT400-EN and can measure resistance up to 100 GΩ. It also has additional features like frequency measurement and can conduct Polarization Index and Dielectric Absorption Ratio tests.

Product Features

  • Selectable output voltage of 50, 100, 250, 500 and 1000 Volts
  • Can measure resistance up to 100 GΩ
  • Displays INS test voltage
  • Continuity testing function from 0.01 to 100 Ω
  • Variable current limit
  • Displays leakage current
  • Live circuit warning feature at 50 Volts
  • Integrated voltmeter
  • Can measure TRMS 
  • Backlight
  • Test button with lock button
  • Automatic shut off function
  • Battery powered operation
  • Can measure frequency from 40 to 400 Hertz

Megger MIT410-TC Insulation Resistance and Continuity Tester

This Megger tester is specifically designed for testing telecommunications installations. The MIT410-TC provides continuity and resistive testing for finding faults in telecommunication cables. This tester has a voltmeter function which allows you to measure line and signaling voltages in premise and twisted copper cables.

Product Features

  • Selectable output voltage of 250, 500 Volts
  • Can measure resistance up to 200 GΩ
  • Continuity testing function at 20 mA down to 0.01
  • Pass/Fail alarms
  • Integrated voltmeter
  • Can measure TRMS 
  • Dual digital display
  • Battery powered operation

Megger MIT420-EN Insulation Resistance and Continuity Tester

This model is similar with the MIT410-EN but can measure capacitance and has an internal storage for test results. It also measure a higher resistance of up to 200 GΩ. The higher resistance measurement capability allows you to test various insulation types on commercial and industrial installations.

Product Features

  • Selectable output voltage of 50, 100, 250, 500 and 1000 Volts
  • Can measure resistance up to 200 GΩ
  • Displays INS test voltage
  • Continuity testing function from 0.01 to 100 Ω
  • Variable current limit
  • Displays leakage current
  • Live circuit warning feature at 50 Volts
  • Integrated voltmeter
  • Can measure TRMS 
  • Backlight
  • Test button with lock button
  • Automatic shut off function
  • Battery powered operation
  • Can measure frequency from 40 to 400 Hertz
  • Measures capacitance from 0.1nF up to 10 μF
  • Internal storage for test results

Megger MIT430-EN Insulation Resistance and Continuity Tester

This meter has the features of the MIT420-EN but with Bluetooth connectivity. This allows you to transfer test results to a computer for analysis and storage. This is ideal for applications where regular testing is done and extensive analysis of results is needed. 

Product Features

  • Selectable output voltage of 50, 100, 250, 500 and 1000 Volts
  • Can measure resistance up to 200 GΩ
  • Displays INS test voltage
  • Continuity testing function from 0.01 to 100 Ω
  • Variable current limit
  • Displays leakage current
  • Live circuit warning feature at 50 Volts
  • Integrated voltmeter
  • Can measure TRMS 
  • Backlight
  • Test button with lock button
  • Automatic shut off function
  • Battery powered operation
  • Can measure frequency from 40 to 400 Hertz
  • Measures capacitance from 0.1nF up to 10 μF
  • Internal storage for test results

Megger MIT430-TC Insulation Resistance and Continuity Tester

This tester is like the MIT430-EN but designed for telecommunications applications. It also features a Bluetooth module so you can transfer the results to a PC. This makes data transfer easy for storage and enhanced analysis using Megger’s software.

Product Features

  • Selectable output voltage of 250, 500 Volts
  • Can measure resistance up to 200 GΩ
  • Continuity testing function at 20 mA down to 0.01
  • Pass/Fail alarms
  • Integrated voltmeter
  • Can measure TRMS 
  • Dual digital display
  • Battery powered operation
  • Bluetooth connectivity for wireless transfer of data

Also refer to these Megger MIT400 series products:

Megger MIT410 Industrial Insulation Tester

Megger MIT40X Industrial Insulation Tester

Megger MIT485 Industrial Insulation Tester

For your test equipment needs, choose Protec Equipment Resources. You can rent, lease or buy electrical test equipment from us. We have a network of distribution centers, strategically located to ensure availability and prompt delivery in any state. Our inventory carries a wide selection of test equipment from trusted brands like Megger, Doble and more. You can be confident that you’ll find the equipment you need. Give us a call at 1-866-352-5550 to learn more about our services.


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