Megger MIT1025 10 kV Insulation Resistance Tester
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Prices updated: 13 Oct 2026
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About this product
The Megger MIT1025 is a compact, portable 10 kV insulation resistance tester for maintenance and diagnostic testing of high-voltage equipment. It measures insulation resistance up to 20 TΩ and offers diagnostic tests such as polarization index, dielectric absorption ratio, step voltage and ramp tests. It is rated CAT IV 600 V and can run on its Li-ion battery or from mains power.
Specifications
- Maximum insulation resistance
- 20 TΩ
- Maximum test voltage
- 10 kV
- Safety rating
- CAT IV 600 V
- Battery
- Li-ion
- Power source
- Battery or line power (mains)
- Diagnostic tests
- PI, DAR, DD, SV, ramp
- Memory
- With time/date stamp
Frequently asked questions
Can the MIT1025 be used when the battery is flat?
Yes. The listing states it can operate from line power (mains) when the battery is dead. Follow the safety rating and the manufacturer's connection instructions.
What is the polarization index (PI) test?
PI is a diagnostic ratio of the insulation resistance measured after 10 minutes to the value measured after 1 minute. It indicates the condition of the insulation, with higher values generally showing better insulation.
