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Fluke 1550B
Megohmmeter / Insulation Tester
Replaced by: 1550C

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Product Information
Datasheet 206 KB
Manual 438 KB
Virtual Demo Flash
Download Demo 1.25 KB EXE
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  • Standard test voltages:  250, 500, 1000, 2500, and 5000 volts
  • Additional test voltages available in 50 volt steps from 250 to 1000 volts, 100 volt steps from 1000 to 5000 volts.
  • Measures up to 1 Tera-Ohm
  • Warning voltage function alerts the user that line voltage is present and gives the voltage reading up to 600 V ac or dc
  • Automatic calculation of Dielectric Absorption and Polarization Index with no setup
  • Guard system eliminates the effect of surface leakage current on high-resistance measurements
  • Large digital/analog LCD delivers detailed measurement data
  • Measures cable or insulation capacitance
  • Measures leakage current
  • Ramp function (0-5000 V dc) for breakdown testing
  • Timer for dielectric absorption and polarization index test
  • 99 minute timer for timed tests.
  • Automatically stores test data in up to 99 locations that user can name for quick recall later
  • High-capacity rechargeable batteries
  • Includes Quicklink 1550B Software and Optical Interface cable for downloading to a Windows® PC
  • Custom soft case for tester and accessories
  • Includes heavy-duty leads, probes and alligator clips
  • Two-year warranty


The Fluke 1550B is a digital megohmmeter capable of testing switchgear, motors, generators and cables at up to 5000 V dc. It can be used for a wide range of tests: from simple spot checks to timed tests and breakdown tests. Measurement storage and PC interface software make it ideal for preventive maintenance. Heavy-duty leads, probes and alligator clips fit in the custom carrying case, for a rugged field testing kit. Fluke 1550B MegOhmMeter
Ordering Information


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1550B  Fluke 1550B 5 kV MegOhmMeter  Discontinued
Replaced by: 1550C
1550BU Fluke 1550B 5 kV MegOhmMeter, Surplus Reconditioned Unit, includes all standard accessories  Please Call
Included Accessories
  • 1 - Test leads and low-leakage probes
  • 1 - Alligator Clips
  • 1 - Interface adapter and cable
  • 1 - Quicklink 1550B PC software
  • 1 - Line cord
  • 1 - Soft carrying case with waterproof bottom
  • 1 - User's manual

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