Fluke 1550C FC 5 kV Digital Insulation Tester

The Fluke 1550C FC 5 kV Digital Insulation Tester sets the standard for advanced high-voltage insulation testing in industrial environments. Ideal for preventive maintenance, predictive diagnostics, commissioning, and troubleshooting, it provides accurate measurements up to 1 TΩ and test voltages up to 5 kV, making it suitable for a wide range of critical electrical assets.

With Fluke Connect® wireless compatibility, you can remotely control tests, monitor live results, and store measurements directly in the cloud, enabling efficient real-time collaboration and analysis. A built-in large digital/analog LCD ensures easy data viewing, while automatic DAR (Dielectric Absorption Ratio) and PI (Polarization Index) calculations simplify insulation assessment without manual calculations.

The tester supports selectable test voltages from 250 V to 5000 V in 50 V increments up to 1000 V and 100 V steps beyond 1000 V, providing flexibility for various applications. Its guard system eliminates surface leakage currents, ensuring accurate high-resistance readings. For added safety, the device warns users of live voltages up to 660 V AC/DC and is rated CAT III 1000 V / CAT IV 600 V for maximum protection.

Featuring a ramp function for breakdown testing, capacitance and leakage current measurements, and timed tests up to 99 minutes, the Fluke 1550C FC provides comprehensive insulation diagnostics. It also integrates seamlessly with FlukeView® Forms software, making data reporting simple and customizable.

Built to last, the tester comes in a rugged, IP40-rated enclosure and operates in demanding environments, offering up to 750 tests per charge with a rechargeable 12 V lead-acid battery. Backed by a three-year warranty, the Fluke 1550C FC is a complete solution for engineers, technicians, and maintenance professionals working with high-voltage electrical systems.

Features

• High-Voltage Testing – Performs insulation resistance tests up to 5 kV with measurements up to 1 TΩ.
• Fluke Connect® Integration – Control, monitor, and share test data wirelessly via smartphone or tablet.
• Automatic DAR & PI Calculations – Simplifies insulation quality analysis without manual setup.
• Selectable Test Voltages – Adjust from 250 V to 5000 V in 50 V or 100 V increments for flexible testing.
• Guard System for Accuracy – Eliminates surface leakage effects, ensuring precise high-resistance measurements.
• Live Circuit Warning – Alerts users if voltage up to 660 V AC/DC is present for added safety.
• Capacitance & Leakage Current Measurement – Enables deeper analysis of insulation health.
• Ramp Function for Breakdown Testing – Monitors insulation degradation under stress conditions.
• Data Storage & Reporting – Stores up to 99 measurement sets and integrates with FlukeView® Forms software for easy reporting.
• Real-Time Trending & Cloud Backup – Visualize insulation performance over time and save results directly to the cloud.
• Long Battery Life – Over 750 tests per charge with a rechargeable 12 V lead-acid battery.
• Rugged Industrial Design – IP40-rated enclosure withstands harsh environments.
• Safety Certified – Meets CAT III 1000 V / CAT IV 600 V standards for high-voltage applications.

Includes

• Test cables with alligator clips (red, black, green)
• Infrared adapter 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