Megger
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Megger MIT420/2. Not recorded
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50 V to 1000 V insulation testing with PI, DAR, variable test voltage and onboard result storage.
MIT420/2 tester with storage and recall
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Specifications checked November 5, 2026. Full product details
Megger MIT420/2 CAT IV Insulation and Continuity Tester
A 1000 V CAT IV insulation and continuity tester with adjustable test voltage from 10 V to 1000 V, PI and DAR calculations, and onboard storage for over 1000 test results.
Selected package: MIT420/2 tester with storage and recall.
Model: MIT420/2
The same tester bundled with extra accessories.
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Adds Bluetooth download to CertSuite Asset software and optional on-board charging.
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| Insulation test voltages | 50 V, 100 V, 250 V, 500 V and 1000 V fixed ranges, plus a user-variable range from 10 V to 1000 V in 1 V steps |
|---|---|
| Insulation resistance range | 2 GΩ to 200 GΩ depending on test voltage (10 GΩ at 50 V up to 200 GΩ at 1000 V) |
| Test voltage accuracy | Stabilised, feedback-controlled output held within -0% +2%, versus the 10 to 20% overvoltage typical of industry-standard testers |
| Continuity range | Single auto-ranging 0.01 Ω to 1 MΩ, with 200 mA or 20 mA test currents and lead null up to 9.00 Ω |
| Voltage measurement | True RMS AC and DC, 0.0 mV to 600 V, with frequency display 15 Hz to 400 Hz |
| PI and DAR | Polarization Index (10 min / 1 min) and Dielectric Absorption Ratio (60 s / 15 s and 60 s / 30 s) functions, with timed testing |
| Capacitance measurement | 1 nF to 10 μF, ±5% ±2 digits (0.1 nF to 1 nF unspecified) |
| Result storage | Over 1000 test results stored on the instrument, transferable to a CSV file (Bluetooth download is on the MIT430/2) |
| Live circuit protection | Insulation testing is inhibited on live circuits above a user-set 25/30/50/75/100 V (default 50 V); protection works even if the fuse has failed |
| Safety standards | Meets IEC 61010 and EN 61557; EN 61010-1 to 600 V phase to earth, Category IV; IP54 |
| Power | 6 x AA alkaline or NiMH rechargeable cells; minimum 3000 insulation tests at 1000 V (5 s on / 55 s off duty cycle) |
| Dimensions and weight | 228 x 108 x 63 mm (9.00 x 4.25 x 2.32 in); 600 g (1.32 lb), 1.75 kg with carry case |
| Included accessories | Red/black silicone test leads with probes and clips, SP5 remote switch probe, 6 x AA alkaline batteries, carry case, calibration certificate (order code 1004-739) |
| Fuse | 1 x 500 mA (FF) 1000 V 32 x 6 mm ceramic high-breaking-capacity fuse (min. 30 kA); glass fuses must not be fitted |
From manufacturer documentation, checked November 5, 2026. Spotted an error? Tell us.
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