Megger MIT1525/2 Advanced 15kV Insulation Resistance Tester
Condition: Refurbished / Calibrated
Warranty: 1 YEAR WARRANTY
Shipping: USA & Worldwide
- Megger MIT1525/2 Advanced 15kV Insulation Resistance Tester (BC# -L/T*)
- (3) Megger Test Leads
- Power Cord
Megger MIT1525/2 Advanced 15kV Insulation Resistance Tester
The Megger MIT1525/2 Advanced 15 kV Insulation Resistance Tester is a portable instrument used to assess the condition of electrical insulation. Technicians use it on equipment such as motors, transformers, switchgear, and power cables during installation, maintenance, and fault investigations. The tester applies a controlled DC test voltage to de-energized equipment and measures how strongly its insulation resists current flow.
The MIT1525/2 offers preset test voltages of 1, 2.5, 5, 10, and 15 kV, as well as a user-defined setting. It can measure insulation resistance up to 30 teraohms (TΩ). These high-voltage, high-resistance capabilities make it suited to testing insulation on larger electrical assets where a lower-voltage handheld tester may not provide the required assessment.
Beyond a single resistance reading, the tester offers diagnostic methods that show how insulation behaves over time or as the test voltage changes. These include dielectric absorption ratio (DAR), polarization index (PI), dielectric discharge (DD), step-voltage, and ramp tests. The results can help technicians identify deterioration, moisture, contamination, or other conditions that warrant further investigation.
Megger’s PI Predictor estimates a polarization index result in less time than a conventional test. Its RE>Act mode monitors current remaining after a test, helping the operator determine when the insulation is ready to be tested again. A guard terminal helps reduce the effect of unwanted surface leakage on a measurement, while noise immunity supports testing in electrically noisy environments.
The MIT1525/2 can run from its rechargeable batteries or an AC power supply. It stores results internally for later review and can export data for reporting with compatible Megger software. Together, its test modes and recordkeeping features make it a tool for checking insulation condition over time and planning maintenance based on measured results.
Features:
- Insulation test voltages of 1, 2.5, 5, 10, and 15 kV, plus a user-defined setting
- Insulation resistance measurement up to 30 TΩ
- Test modes including insulation resistance, DAR, PI, dielectric discharge, step voltage, and ramp
- PI Predictor for a faster estimated polarization index result
- RE>Act mode to help determine when insulation is ready for retesting
- Guard terminal to reduce the effect of surface leakage on readings
- Up to 6 mA noise immunity for testing in electrically noisy locations
- Internal storage for test results
- Data export for use with compatible Megger reporting software
- Operation from rechargeable batteries or AC power
- Live-circuit detection, discharge monitoring, and a CAT IV 1000 V safety rating
| Specification | Megger MIT1525/2 |
|---|---|
| Instrument type | Advanced insulation resistance tester |
| Maximum test voltage | 15 kV DC |
| Preset test voltages | 1, 2.5, 5, 10, and 15 kV |
| User-defined test voltage | 100 V to 15 kV, with step size dependent on range |
| Insulation resistance range at 5 kV | 10 kΩ to 15 TΩ |
| Insulation resistance range at 10 kV | 10 kΩ to 20 TΩ |
| Insulation resistance range at 15 kV | 10 kΩ to 30 TΩ |
| Resistance accuracy at 15 kV | ±5% from 1 MΩ to 3 TΩ; ±20% up to 30 TΩ |
| Test modes | IR, timed IR, DAR, PI, step voltage, dielectric discharge, PDC, and ramp |
| Additional test functions | PI Predictor and RE>Act |
| Selectable charge current | 1 mA, 3 mA, or 6 mA; 6 mA requires AC power |
| Capacitance range | 10 nF to 50 µF when test voltage is above 500 V |
| Current measurement range | 0.01 nA to 6 mA |
| Interference rejection | 6 mA from 2.1 to 15 kV |
| Voltmeter range | 30 to 660 V AC or DC |
| Timer range | 15 seconds to 99 minutes 59 seconds |
| Result storage | Internal memory with time and date stamps |
| Data connections | USB Type-B and Bluetooth |
| Power | AC mains or two rechargeable Li-ion battery packs |
| AC input | 90–264 V AC, 47–63 Hz |
| Typical battery life | 4.5 hours of continuous testing at 15 kV with a 100 MΩ load |
| Operating temperature | −20 to 50 °C |
| Ingress protection | IP65 with lid closed; IP40 with lid open |
| Safety rating | CAT IV 1000 V, up to 3,000 m altitude |
| Dimensions | 360 × 305 × 194 mm |
| Supplied test leads | 3 m lead set with large clips insulated for 15 kV use |