MEGGER MIT515/2 – 5 kV Insulation Resistance Tester | High-Voltage Diagnostic Testing

MEGGER MIT515/2 – 5 kV Insulation Resistance Tester review

The MEGGER MIT515/2 is part of the renowned MIT series of high-voltage insulation resistance testers, designed to deliver accuracy, reliability, and ease of use. Its intuitive dual rotary dial interface and large backlit display make operation simple, even for first-time users. A graphical quick start guide inside the lid, supported by QR codes linking to online resources, ensures faster setup and testing.

Engineered for demanding environments, the MIT515/2 offers ±5% accuracy up to 1 TΩ at 5 kV and 2 TΩ at 10 kV. The tester also includes Megger’s RE>Act mode, which monitors reabsorption current and indicates its impact on test accuracy – eliminating false passes and improving reliability.

With a rugged dual-case design (IP65 with lid closed) and CAT IV 600 V rating up to 3000 m altitude, the MIT515/2 goes beyond compliance to deliver uncompromising safety and durability in field conditions.

MEGGER MIT515/2 Insulation Tester Key Features

Before diving into the detailed specifications, here are the highlights that make the MEGGER MIT515/2 essential for professionals in power, industrial, and utility applications:

• Insulation resistance measurement up to 15 TΩ at 5 kV

• Preset and user-defined test voltages: 250 V to 5000 V

• RE>Act mode to monitor reabsorption current and prevent false passes

• Pre-configured diagnostic tests: Polarization Index (PI), Dielectric Absorption Ratio (DAR), PI predictor (PIp)

• Up to 3 mA short-circuit current for fast charging and testing

• Advanced noise rejection: up to 3 mA from 450 V to 5 kV

• Safety rated to CAT IV 600 V and compliant with IEC standards

• Rugged dual-case housing with fire-retardant inner case

• Backlit digital & analogue display for simultaneous test data view

• Operates on Li-ion rechargeable battery or AC mains

• Rapid charging: 30 min quick charge, 2–2.5 h full charge

• Auto power off for extended battery life

MEGGER MIT515/2 Applications

The MIT515/2 insulation tester is versatile and widely used in:

• Manufacturing & QA – quality inspections before shipment

• Pre-installation testing – establishing benchmark insulation values

• Commissioning – verifying new equipment after installation

• Maintenance – supporting predictive and preventive programs

• Post-repair testing – confirming insulation integrity before energizing equipment

• Utility & industrial plants – high-voltage equipment, cables, motors, and transformers

Contents of the MEGGER MIT515/2 box

• MEGGER MIT515/2 Insulation Tester

• Li-ion rechargeable battery (pre-installed)

• Double-insulated test leads with 3 kV clips

• Mains power supply / charger

• User manual & quick start guide

• Carry case