Megger MIT525/2 | 5 kV Insulation Tester

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    Advanced 5 kV insulation resistance tester with rapid charge & data storage. CAT IV 600 V rated for safety & reliability. Get accurate results fast.

    PDF download Megger MIT525/2, MIT1025/2, MIT1525/2 Datasheet

    SKU: 1016-087 Categories: , Tags: , Brand:

    The Megger MIT525/2 is a 5 kV insulation resistance tester engineered for professionals who require accuracy, safety, and efficiency. As part of the Advanced range, this instrument delivers reliable diagnostic testing for a wide array of electrical assets, from cables and transformers to motors and generators. Its robust, dual-case design provides exceptional durability and user protection, with an IP65 rating when closed to guard against dust and moisture ingress.

    Designed for demanding industrial and power distribution environments, the MIT525/2 offers superior performance with up to 6 mA noise rejection, ensuring stable and precise measurements even in electrically noisy locations. The instrument features a comprehensive suite of diagnostic tests, including Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), and Ramp testing. The patented PI Predictor function can save valuable time on site by estimating PI results in as little as three minutes, optimising your testing workflow.

    Safety is paramount, and the MIT525/2 is rated to CAT IV 600 V up to 3000 m, providing confidence during high-voltage applications. Its intelligent safety system includes multiple levels of voltage warnings to protect both the user and the instrument. With user-defined test voltages from 40 V to 5 kV, you have complete control over your testing parameters.

    Data management is streamlined with on-board memory that stores time and date-stamped results. You can easily transfer data to a PC or mobile device via the isolated USB or wireless Bluetooth LE interface. This enables seamless integration with CertSuite Asset and PowerDB software for advanced analysis and reporting. The rapid-charge Li-ion battery ensures the tester is ready when you are, offering up to 6 hours of continuous testing and operating from an AC supply for uninterrupted use. For technicians and engineers who need a dependable and feature-rich insulation tester, the MIT525/2 is the definitive choice.

    Key Features

    • Advanced Diagnostic Capability: Performs PI, DAR, DD, SV, PDC, and Ramp tests for comprehensive insulation analysis.
    • High Noise Immunity: Features 6 mA noise rejection for stable and accurate readings in disruptive environments.
    • Enhanced Safety Rating: CAT IV 600 V rating up to 3000m ensures superior user protection during high-voltage testing.
    • Rapid Charge Battery: Long-life Li-ion battery charges quickly and provides up to 6 hours of continuous operation.
    • Advanced Data Management: On-board memory with time/date stamp and seamless data transfer via USB or Bluetooth LE.
    • Durable Dual-Case Design: Tough outer casing and fire-retardant inner casing provide excellent protection (IP65 rated when closed).
    • Flexible Test Voltages: Offers five preset voltage ranges (250 V, 500 V, 1000 V, 2500 V, 5000 V) plus user-settable options.
    Weight 1 kg

    Key Features

    • Advanced Diagnostic Capability: Performs PI, DAR, DD, SV, PDC, and Ramp tests for comprehensive insulation analysis.
    • High Noise Immunity: Features 6 mA noise rejection for stable and accurate readings in disruptive environments.
    • Enhanced Safety Rating: CAT IV 600 V rating up to 3000m ensures superior user protection during high-voltage testing.
    • Rapid Charge Battery: Long-life Li-ion battery charges quickly and provides up to 6 hours of continuous operation.
    • Advanced Data Management: On-board memory with time/date stamp and seamless data transfer via USB or Bluetooth LE.
    • Durable Dual-Case Design: Tough outer casing and fire-retardant inner casing provide excellent protection (IP65 rated when closed).
    • Flexible Test Voltages: Offers five preset voltage ranges (250 V, 500 V, 1000 V, 2500 V, 5000 V) plus user-settable options.

    Technical Specifications

    Feature

    Specification

    Maximum Test Voltage

    5000 V

    Resistance Range

    10 kΩ to 10 TΩ

    Test Voltage Accuracy

    +4%, -0%, ±10 V nominal test voltage at 1 GΩ load

    Short Circuit Current

    User selectable: 1 mA, 3 mA (Default), 6 mA (mains supply only)

    Noise Rejection

    6 mA from 450 V to 5 kV

    Battery Life

    6 hours (typical) continuous testing at 5 kV with a 100 MΩ load

    Safety Rating

    CAT IV 600 V to 3000 m altitude

    Data Storage

    5.5 hours logging at 5-second intervals, with time/date stamp

    Interfaces

    USB Type B (device), Bluetooth® Class 2

    IP Rating

    IP65 (lid closed), IP40 (lid open)

    Dimensions

    315 mm L x 285 mm W x 181 mm H

    Weight

    4.5 kg

    Frequently Asked Questions (FAQ)

    1. What types of tests can the Megger MIT525/2 perform?
    The MIT525/2 can perform a full range of insulation diagnostic tests, including Insulation Resistance (IR), Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Stepped Voltage (SV), Polarisation Depolarisation Current (PDC), and Ramp tests.

    2. How does the MIT525/2 handle electrically noisy environments?
    It is designed with high noise immunity, capable of rejecting up to 6 mA of noise current. This feature ensures that your measurement accuracy is maintained even in environments with significant electrical interference, such as substations.

    3. Can I store and transfer test results from the MIT525/2?
    Yes, the instrument includes advanced memory with a time and date stamp for every result. You can transfer data safely to a computer or mobile device using the isolated USB port or the integrated Bluetooth LE wireless connection for use with software like CertSuite Asset or PowerDB.

    4. What is the battery life and charging time for this tester?
    The MIT525/2 is equipped with a rapid-charge Li-ion battery that provides approximately 6 hours of continuous testing at 5 kV. A full charge from deep discharge takes 2.5 hours. The unit can also be operated directly from an AC mains supply if the battery is flat.

    5. What safety features are included in the Megger MIT525/2?
    The MIT525/2 is built for safety with a CAT IV 600 V rating. It features a dual-case design for physical protection, live voltage warnings, and supplied test leads that meet strict IEC standards. The RE>Act mode also provides an added safety layer by monitoring discharge to prevent dangerous return voltages.

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