Fluke 1550C 5kV Insulation Resistance Tester
The Fluke 1550C 5kV Insulation Resistance Tester delivers advanced digital insulation testing up to 5000 V, bringing together safety and ease of use. With Fluke Connect™ wireless setup, you can use the device from a distance and see live trends directly on your phone. This lowers time spent in risky areas while showing clear test results.
You can check insulation performance easily thanks to the tester’s big screen and charting feature. Also, ready-made templates let you make reports quickly with company logos. The tester saves up to 99 named results, keeping records neat and clear.
Accurate and Efficient Measurements
This tester supports a wide voltage range from 250 V to 5000 V, in user-selectable steps. It also features a guard system to eliminate surface leakage effects, and includes DAR and PI calculations without extra configuration. Its ramp function allows you to perform insulation breakdown tests efficiently.
Built for Demanding Environments
With a rugged IP40-rated enclosure, long battery life and 3-year warranty, the Fluke 1550C 5kV is ideal for preventive and predictive maintenance. It meets IEC safety standards and withstands operating temperatures from -20°C to 50°C. Whether you work in utilities, industrial settings or field maintenance, this tester is built to perform.
Key Features
- Measures insulation resistance up to 2 TΩ
- Selectable voltages from 250 V to 5000 V
- Fluke Connect enables remote test operation
- Trend graphs available in real time via mobile
- Generates customisable reports with branding
- Calculates DAR and PI automatically
- Built-in guard system for more accurate readings
- Large LCD with digital and analogue scale
- Leakage current and capacitance measurement
- 99 user-labelled memory storage slots
- Timer setting from 0 to 99 minutes
- Meets CAT IV 600 V and CAT III 1000 V standards











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