1550C Fluke Insulation Meter


The 1550C is an insulation meter from Fluke. HiPot, or high potential, is a class of electronic test equipment used to verify electrical insulation. Engineers use HiPot-testing instruments on cables, wires, circuit boards, appliances, electric motors, and transformers. As a product ages, its insulation may break down and result in current flow leakage. HiPot testers keep engineers safe from current leakages by detecting gaps and defects in the electronic device. Dielectric Testers, Insulation Testers, and Megohmmeters are similar to HiPot testers. Popular manufacturers include Biddle, Megger, Fluke, Associated Research, Quadtech, Instek, and Slaughter.

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Additional Features:

  • Test voltages up to 5 kV provides solutions for all applications
  • CAT III 1000 V, CAT IV 600 V safety rating
  • Voltage breakdown detection alerts the user that voltage is present and gives the voltage reading up to 600 V AC or DC for increased user safety
  • Selectable test voltages in 50 V steps from 250 to 1000 V, and 100 V steps above 1000 V
  • Measurements can be stored in up to 99 memory locations, with each location assigned a unique, user defined, label for easy recall
  • Long battery life gives the user over 750 tests between charges
  • Automatic calculation of Dielectric Absorption (DAR) and Polarization Index (PI) with no additional setup
  • Guard system eliminates the effect of surface leakage current on high-resistance measurements
  • Large digital/analog LCD for easy viewing
  • Capacitance and leakage current measurement
  • Ramp function for breakdown testing
  • Resistance measurements up to 2TOhms
  • Timer settings up to 99 minutes for timed tests
  • 3-Year Warranty


  • Test Cables with Alligator Clips (red, black, green)
  • Infrared adapter with interface cable
  • FlukeView Forms Basic CD-ROM
  • AC Power Cord
  • Soft Carrying Case (base models only)
  • English Manual
  • Users Manual on CD-ROM
  • Quick Reference Card
  • Software License Agreement Registration Card FlukeView Forms Installation Guide
  • USB-IR Cable Installation Guide
  • IP67 Hard Case (kit only)
  • Certificate of Calibration (kit only)
  • Ruggedized Alligator Clips (kit and 1555 only)

The Fluke 1550C insulation resistance testers, offer digital insulation testing up to 5kV, making this unit valuable for testing a wide range of high voltage equipment including switchgear, motors, generators and cables. The Fluke 1500 series can now conduct the entire range of test voltages specified in IEEE 43-2000 with a best in class, 3 year warranty and CAT IV 600V safety rating.

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