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Fluke 1550C 5 kV Digital Insulation Tester

Fluke 1550C 5 kV Digital Insulation Tester

SKU: 59-07-1551

Key features


  • Fluke Connect®-enabled digital insulation resistance tester for a wide range of high voltage applications
  • Tests voltage up to 5 kV
  • Alerts users that line voltage is present
  • Displays voltage readings up to 600 V AC or DC
  • Features CAT III 1000 V, CAT IV 600 V safety rating

Fluke 1550C 5 kV Insulation Tester handles a wide range of high voltage equipment


The Fluke 1550C performs digital insulation testing up to 5 kV, making it ideal for testing high voltage equipment including switch gear, motors, generators, and cables. You can use the 1550C to test the entire range of test voltages specified in With measurement storage, a PC interface, and , the 1550C can help you evaluate trends and eliminate doubt. It’s the perfect tool for preventive or predictive maintenance programs designed to identify potential equipment failures before they occur. And it comes with a three-year warranty and CAT IV 600 V safety rating.


Others useful capabilities:


  • Offers selectable test voltages in 50 V steps from 250 V to 1000 V, and in 100 V steps above 1000 V
  • Saves time by trending on the spot with Fluke Connect
  • Stores measurements in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
  • Delivers long battery life, allowing users to perform over 750 tests between charges
  • Automatically calculates Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
  • Features a guard system that eliminates the effect of surface leakage current on high-resistance measurements
  • Measures capacitance and leakage current
  • Measures resistance up to 2 TΩ
  • Includes a ramp function for breakdown testing
  • Presents results on a large, digital/analog LCD for easy viewing
  • Provides timer settings up to 99 minutes for timed tests
  • Comes with test cables with alligator clips, infrared adapter, soft carrying case
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