Test Instrument Reference

Megger MIT1025

Updated 2026-10-27

Megger MIT1025, insulation resistance tester
Image: Megger, from its product page (www.megger.com)

Specifications

Figures as the manufacturer states them on its product page or datasheet; each row links its data record.

Battery life
4.5 hours (typical) continuous testing at 10 kV with a 100 MΩ load
Dimensions
L 315 mm x W 285 mm x H 181 mm
Ip rating
IP65 (lid closed), IP40 (lid open)
Max output voltage
10 kV
Maximum resistance
20 TΩ
Operating temperature
-20 °C to +50 °C
Safety rating
CAT IV 600 V to 3000 m altitude
Short circuit current
3 mA
Test voltages
500 V, 1000 V, 2500 V, 5000 V, 10000 V, plus a user defined test voltage
Weight
4.5 kg

Data records

  • The manufacturer's page for the MIT1025 was read on the date given in the value. Value: 2026-10-27. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.checked
  • The manufacturer lists the MIT1025 as a DC insulation resistance tester for the diagnostic testing and maintenance of high voltage electrical equipment. Value: insulation resistance tester. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.class
  • The MIT1025 performs timed insulation resistance, dielectric absorption ratio, polarization index, step voltage, dielectric discharge and ramp tests. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.diagnostic-tests
  • The MIT1025 measures insulation resistance at a selectable DC test voltage, with five preset voltage ranges and a user settable lock voltage range. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.insulation-resistance
  • The MIT1025 stores results in on-board memory with a time and date stamp from a real time clock and recalls them to the screen. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.memory
  • The MIT1025 includes a PI predictor function that uses the first part of the insulation resistance curve to predict the polarization index before the full test time has elapsed. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.pi-predictor
  • The MIT1025 can store an insulation temperature measured by an independent thermometer with a test result. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.temperature-record
  • The MIT1025 downloads stored results to a computer through an isolated USB device interface. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.function.usb-download
  • The MIT1025 is a product of Megger. Value: Megger. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.manufacturer
  • The manufacturer gives the model designation as MIT1025. Value: MIT1025. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.model
  • Megger maintains a product page for the MIT1025 on its own website, which is the page cited for this entry. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.product-page
  • The manufacturer states a typical battery life for continuous testing with the MIT1025. Value: 4.5 hours (typical) continuous testing at 10 kV with a 100 MΩ load. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.battery-life
  • The manufacturer states the dimensions of the MIT1025. Value: L 315 mm x W 285 mm x H 181 mm. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.dimensions
  • The manufacturer states an ingress protection rating for the MIT1025. Value: IP65 (lid closed), IP40 (lid open). Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.ip-rating
  • The manufacturer states a maximum DC output test voltage for the MIT1025. Value: 10 kV. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.max-output-voltage
  • The manufacturer states a maximum measurable insulation resistance for the MIT1025. Value: 20 TΩ. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.maximum-resistance
  • The manufacturer states an operating temperature range for the MIT1025. Value: -20 °C to +50 °C. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.operating-temperature
  • The manufacturer states a measurement category rating for the MIT1025. Value: CAT IV 600 V to 3000 m altitude. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.safety-rating
  • The manufacturer states the short circuit and charge current of the MIT1025. Value: 3 mA. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.short-circuit-current
  • The manufacturer states the preset test voltages of the MIT1025. Value: 500 V, 1000 V, 2500 V, 5000 V, 10000 V, plus a user defined test voltage. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.test-voltages
  • The manufacturer states a weight for the MIT1025. Value: 4.5 kg. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.spec.weight
  • The datasheet states the test leads supplied with the MIT1025 are designed to IEC 61010-031:2008. Value: IEC 61010-031:2008. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.standard.iec-61010-031
  • The datasheet names IEC 61010-1 as the safety standard the MIT1025 is designed to. Value: IEC 61010-1. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.standard.iec-61010-1
  • The datasheet names IEC 62133:2003 for the lithium ion battery fitted to the MIT1025. Value: IEC 62133:2003. Source: Megger datasheet, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.standard.iec-62133
  • Megger marks the product page for the MIT1025 as discontinued. Value: discontinued. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.status
  • The catalog name of the model is written Megger MIT1025. Value: Megger MIT1025. Source: Megger product page, web page edition. Verified 2026-10-27. Record prod.megger-mit1025.title

Sources

  • Megger datasheet, MIT515, MIT525, MIT1025, MIT1525 5 kV, 10 kV, 15 kV DC Insulation Resistance Testers data sheet (MIT515--MIT525--MIT1025--MIT1525_DS_US_V22), web page edition, Megger. Held as: Public page. Publisher page
  • Megger product page, MIT515, MIT525, MIT1025, and MIT1525 insulation resistance testers, web page edition, Megger. Held as: Public page. Publisher page
Changelog (52 entries)
DateRevisionChange
2026-10-27created (prod.megger-mit1025.checked)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.checked)
2026-10-27created (prod.megger-mit1025.class)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.class)
2026-10-27created (prod.megger-mit1025.function.diagnostic-tests)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.diagnostic-tests)
2026-10-27created (prod.megger-mit1025.function.insulation-resistance)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.insulation-resistance)
2026-10-27created (prod.megger-mit1025.function.memory)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.memory)
2026-10-27created (prod.megger-mit1025.function.pi-predictor)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.pi-predictor)
2026-10-27created (prod.megger-mit1025.function.temperature-record)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.temperature-record)
2026-10-27created (prod.megger-mit1025.function.usb-download)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.function.usb-download)
2026-10-27created (prod.megger-mit1025.manufacturer)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.manufacturer)
2026-10-27created (prod.megger-mit1025.model)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.model)
2026-10-27created (prod.megger-mit1025.product-page)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.product-page)
2026-10-27created (prod.megger-mit1025.spec.battery-life)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.battery-life)
2026-10-27created (prod.megger-mit1025.spec.dimensions)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.dimensions)
2026-10-27created (prod.megger-mit1025.spec.ip-rating)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.ip-rating)
2026-10-27created (prod.megger-mit1025.spec.max-output-voltage)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.max-output-voltage)
2026-10-27created (prod.megger-mit1025.spec.maximum-resistance)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.maximum-resistance)
2026-10-27created (prod.megger-mit1025.spec.operating-temperature)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.operating-temperature)
2026-10-27created (prod.megger-mit1025.spec.safety-rating)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.safety-rating)
2026-10-27created (prod.megger-mit1025.spec.short-circuit-current)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.short-circuit-current)
2026-10-27created (prod.megger-mit1025.spec.test-voltages)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.test-voltages)
2026-10-27created (prod.megger-mit1025.spec.weight)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.spec.weight)
2026-10-27created (prod.megger-mit1025.standard.iec-61010-031)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.standard.iec-61010-031)
2026-10-27created (prod.megger-mit1025.standard.iec-61010-1)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.standard.iec-61010-1)
2026-10-27created (prod.megger-mit1025.standard.iec-62133)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.standard.iec-62133)
2026-10-27created (prod.megger-mit1025.status)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.status)
2026-10-27created (prod.megger-mit1025.title)
2026-10-27review_status unreviewed -> software_reviewed (prod.megger-mit1025.title)

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Megger MIT1025." Test Instrument Reference. 2026-10-27. https://www.testinstrumentreference.com/products/megger-mit1025/.