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UT512E

2500V Digital Insulation Resistance Tester

$499.99
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250GΞ© insulation resistance tester with test voltages up to 2500V and PI/DAR analysis. Designed for electrical contractors and maintenance teams testing cables, motors, and switchgear insulation.

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UNI-T UT512E 2500V Insulation Resistance Tester

Overview

The UT512E is the 2.5 kV entry to the UT513 family, rated CAT IV 600 V. It tests insulation resistance up to 2.5 TΞ© at test voltages to 2500 V β€” well matched to low- and medium-voltage motors, cables, and switchgear where a full 5 kV output isn't required but a wide, high-resistance range still is.

It includes Polarization Index testing, 10% stepped-voltage profiling, a comparison function, and capacitance measurement, with automatic discharge after each test. Results store 999 sets and transfer over USB, and a 14.8 V 5200 mAh rechargeable pack runs a full field day. It's backed by UNI-T's nearly 40 years of test-meter manufacturing.

Key Features

  • Test voltage output up to 2500 V
  • Insulation resistance up to 2.5 TΞ©, accuracy Β±(5%+5)
  • Polarization Index (PI) timed test
  • 10%-of-range stepped-voltage profiling
  • Capacitance measurement up to 2 Β΅F
  • Comparison function for pass/fail
  • Automatic discharge and auto-ranging
  • 999-set storage with USB transfer
  • CAT IV 600 V; 14.8 V 5200 mAh rechargeable Li-ion

UT512E Details

2.5 kV Insulation Testing

Test voltages to 2500 V and a measurement range to 2.5 TΞ© cover low- and medium-voltage insulation work β€” motor windings, cable, and switchgear β€” without the higher output of the 5 kV models.

PI & Stepped-Voltage Profiling

A timed Polarization Index test flags moisture and aging, and 10% stepped-voltage profiling stresses the dielectric in stages to reveal marginal insulation that a single fixed reading would pass.

Capacitance & Comparison

Built-in capacitance measurement to 2 Β΅F supports cable and winding work, and a comparison function sets a pass/fail threshold for fast, repeatable go/no-go decisions.

Safety & Field Build

Automatic discharge clears stored charge at the end of each test. The CAT IV 600 V rating and a 14.8 V 5200 mAh rechargeable pack make it ready for industrial and utility field use.

Compare the UT513 Series

UT512E UT513A UT513B UT513C
Max test voltage 2500 V 5 kV 5 kV 5 kV
Max insulation resistance 2.5 TΞ© 1 TΞ© 2 TΞ© 5 TΞ©
Voltage stepping (10% of range) Yes β€” Yes Yes
PI / DAR diagnostics PI PI PI / DAR PI / DAR
Capacitance measurement 2 Β΅F β€” β€” 0.01–15 Β΅F
Data storage 999 sets 18 sets 999 sets 999 sets
Bluetooth app β€” β€” β€” Yes
Safety rating CAT IV 600 V CAT III 600 V CAT IV 600 V CAT IV 600 V

Applications

Low- and medium-voltage motor and generator winding tests; cable and feeder insulation checks; switchgear and panel maintenance; and commissioning where a 2.5 kV test voltage is sufficient.

Frequently Asked Questions

What is the UT512E's test voltage and range?

Test voltages up to 2500 V and insulation resistance measurement up to 2.5 TΞ©.

How does the UT512E relate to the UT513 models?

It is the 2.5 kV entry to the same family; the UT513A/B/C step up to 5 kV output with higher resistance ranges and additional diagnostics.

Does the UT512E measure capacitance?

Yes β€” up to 2 Β΅F, alongside insulation resistance, PI, and stepped-voltage testing.

Warranty

This product includes a standard 1-year warranty covering manufacturing defects and component failures under normal use conditions.

UNI-T stands behind every product we sell. If you experience any issues within the warranty period, our US-based support team is here to help with troubleshooting, repair, or replacement.