Item #ME/MIT525-EN, Insulation Resistance Testers - MIT515, MIT525, MIT1025, MIT1525 5kV-15kV - Megger

The Megger MIT525 Insulation Resistance Tester is an advanced 5kV test set for the diagnostic testing and maintenance of high voltage electrical equipment. In addition to measuring insulation resistance to 10TO, the MIT 525 also offers polarisation index, dielectric absorption ratio, step voltage, dielectric discharge and ramp testing.

In addition, the Megger MIT525 has advanced memory storage that allows test results to be logged complete with time/date stamping and simple recall of results to the screen. A fully isolated USB interface is used for the safe transfer of data to the supplied Megger PowerDB Lite management software package.

Simple operation is ensured with the two rotary switches while the large backlit display allows multiple results including resistance, voltage, leakage current, capacitance, battery level and test time to be displayed simultaneously.

Supplied in a rugged case that provides ultimate protection and a clip on lead pouch, the Megger MIT525 Insulation Tester is an extremely portable instrument with a CAT IV 600V safety rating in accordance with IEC 61010.


Analog and Digital display
Operation through batteries or through AC mains
Variable voltage from 50 Volts to 1 kiloVolts at 10 Volts increments
Variable voltage from 1 kiloVolts to 5 kiloVolts at 25 volts increments
Measurement of voltage, capacitance, time constant and leakage current
Automatic Insulation Resistance, Polarization Index, Ramp, Step Voltage, Dielectric Discharge and Dielectric Absorption Ratio testing
Built-in timer control and display
3 milliAmpere test current
Measurement of resistance from 10 kOhms to 10 TOhms
USB and RS232 ports
Real time clock
Alarm limit mode
3 milliAmpere noise rejection
2 percent error guarding 500 kOhms leakage with a 100 MOhms

Included accessories:

Manual CD
Power lead
3-meter leadset with medium insulated clips
USB cable
PowerDB Lite Software

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Item Name
Megger MIT525 (1001-940)
Test Voltage (V dc)
250 500 1000 2500 5000
10 kohm – 10Tohm
USB, RS232