• approved distributor

    Buy or Hire Test Equipment
    Repair | Calibrate | Training

  • product advice and demos

    Product advice & demos
    Aftersales support

  • competetive prices

    Competitive quotes
    Bespoke deals

  • approved distributor

    Approved distributor
    Approved service centre


Be the first to review this product

1550C 5kV Insulation Resistance Testers

FLUKE 1555C Digital Insulation Resistance Tester designed to test up to 5kV. Ideal for testing a wide range of high voltage equipment including switchgear, motors, generators & cables.

Part Number:

read more


Need Help ? Contact Us Request Demo
Acutest's Price Promise
  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support

Product Options


Manufacturer's RRP

5133.60 incl. VAT)
Add To Cart
  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support




FLUKE 1550C 5kV Insulation Resistance Tester

The world leading FLUKE 1550C Insulation Resistance Tester minimises time you spent around powered equipment, while collecting data with one button push.

Combine the tester with FLUKE CONNECT capability and achieve the following:

  • Work from a safe distance, using the FLUKE CONNECT wireless app to set parameters, perform tests and collect data on your smart phone
  • Select Ramp, PI, DAR and basic insulation tests
  • CAT III 1000 V, CAT IV 600 V safety rated
  • See trending graphs in real-time, create reports, with Fluke Connect app


FLUKE 1550C Key Features:

  • Automatic calculation: Dielectric Absorption (DAR), Polarisation Index (PI) with no additional setup
  • Select test voltages up to 5 kV (trending using FLUKE CONNECT)*
  • Identify degradation over time: Historical tracking and trending of assets (FLUKE CONNECT)*
  • Auditable data trail: wireless results storing (FLUKE CONNECT)*
  • Safety rating: CAT III 1000 V, CAT IV 600 V
  • Selectable test voltages: in 50 V steps, from 250-1000 V (100 V steps above 1000 V)
  • Long-life battery: 750+ tests between charges
  • Eliminate surface leakage current effect: on high-resistance measurements using ‘Guard System‘
  • Warning function: alerts the user that line voltage is present and gives the voltage reading up to 600 V AC or DC for increased user safety
  • Measurements can be stored in up to 99 memory locations: each location assigned a unique, user defined, label for easy recall
  • Large digital/analog LCD for easy viewing
  • Capacitance and leakage current measurement
  • Ramp function for breakdown testing
  • Resistance measurements up to 2TΩ (tera-ohms)
  • Timer settings up to 99 minutes for timed tests
  • 3-year warranty


FLUKE 1550C Remote configuration and operation (via FLUKE CONNECT)

Data collection is easy using the FLUKE Connect wireless app.  Remote operation lets you spend as little time as possible in potentially hazardous zones. Real-time trending shows a live graph on your phone, rather than a hard-to-read set of changing values. And you can create reports quickly, using pre-designed templates that you can customise with company logos. The 1550C insulation tester 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 600 V safety rating.


What comes with the FLUKE 1550C?

  • Test cables with alligator clips (red, black, green)
  • Infrared adaptor with interface cable
  • AC power cord
  • Soft carrying case
  • English manual
  • User‘s manual on CD-ROM
  • Quick reference card
  • Software license agreement
  • Registration card
  • USB-IR cable installation guide


What extra comes with the 1550 kit?

  • IP67 Hard Case (instead of the soft carry case option)
  • Certificate of Calibration
  • Heavy duty alligator clip leads



Comparison Chart for: Fluke 1550C 5kV Insulation Resistance Testers

1587 FC15871577150315071550C1555
Test voltages50 V to 1000 V50 V to 1000 V500 V to 1000 V500 V to 1000 V50 V to 1000 V250 V to 5000 V250 V to 10,000 V
0 .01 MΩ to 2 GΩ0 .01 MΩ to 2 GΩ0 .01 MΩ to 600 MΩ0 .01 MΩ to 2 GΩ0 .01 MΩ to 10 GΩ200 k to 1 TΩ200 k to 2 TΩ
PI/DARYes, plus Fluke Connect*Yes, plus Fluke Connect*
Timed ramp test (breakdown)
MemoryThrough Fluke ConnectYes, plus Fluke Connect*Yes, plus Fluke Connect*
Remote start and setupYes, through Fluke Connect*Yes, through Fluke Connect*
200 mA source (10 mΩ resolution)200 mA source (10 mΩ resolution)
Warranty (years)3331133
*Using ir3000 FC adapter / FLUKE Connect