Megger MIT1525/2 Advanced 15 kV insulation resistance testers

The MIT1525/2 places advanced insulation diagnostics into one rugged field-instrument. It allows selectable DC test voltages up to 15,000 V to suit various insulation systems and can measure resistance into the multi-tera-ohm range—supporting accurate degradation trending for high-quality insulation. It offers a full suite of test modes including timed insulation resistance, Polarization Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Step Voltage (SV) and Ramp-Voltage tests. The instrument includes onboard data logging with time-date stamping and USB connectivity for export to asset-management systems, enabling test records and long-term trend analysis. Built to handle heavy-duty use, its dual-case design provides enhanced protection, high safety ratings, and both battery and mains operation for continuous testing. With an intuitive interface, large back-lit display and high-voltage accessories rated for 15 kV use, it delivers professional insulation testing capability in a field-ready package.

Features

• Selectable DC test voltages up to 15 kV, allowing testing of very high-voltage insulation systems.
• Insulation resistance measurement range into the tens of tera-ohms (e.g., up to ~30 TΩ) for detecting subtle insulation degradation.
• Comprehensive diagnostic test modes: Insulation Resistance (IR), PI, DAR, DD, Step Voltage, Ramp-Voltage tests.
• On-board memory and time-date stamping of results with USB connectivity for data export and asset-management compatibility.
• Rugged dual-case construction, IP rating (case closed), high safety terminal ratings (e.g., CAT IV/1000 V to altitude) for industrial-grade reliability.
• Operation on both lithium-ion batteries (fast charge) and AC mains power—ensuring uninterrupted testing in the field.
• High-voltage lead sets rated for 15 kV with locking HV plugs, designed for safe high-voltage insulation testing.
• Large clear back-lit display shows resistance, voltage, leakage current, capacitance, time constant and elapsed test time simultaneously.
• Guard terminal feature to eliminate surface leakage currents for more accurate high-resistance measurements.
• Designed for application in motors, generators, cables, switchgear, high-voltage systems — making it suitable for OEMs, utilities and maintenance professionals.

Includes

• Choice of Tester
• Quick Start label
• Power lead
• Screened USB cable with filters
• Leadset 3 x 3 m, with large 15 kV insulated clips (MIT1525/2 only)