Description
Overview
The Fluke 1550C is a high-performance digital insulation resistance tester designed for advanced preventive and predictive maintenance applications. It supports insulation testing up to 5 kV, capable of measuring resistances as high as 2 TΩ, and includes features such as guard system, ramp testing, dielectric absorption ratio (DAR), polarization index (PI) calculations, a memory for storing results, and remote operation via optional wireless connectivity. It is ideal for assessing insulation on switchgear, motors, generators, cables, transformers, and other high-voltage electrical assets.
The tester meets safety standards including CAT IV 600 V / CAT III 1000 V and is built to IEC 61557 / IEC 61010-1 specifications. The 3-year warranty makes it a trusted tool in professional environments.
Key Features
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5 kV test voltage selectable in 50 V or 100 V steps
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High insulation resistance range up to 2 TΩ
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Automatic DAR / PI calculation
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Ramp / breakdown testing mode
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Guard system to minimize surface leakage current
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Memory storage of up to 99 measurement records
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Warning for presence of up to 600 V AC/DC before test
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Extended battery life with over 750 tests per charge
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Large dual digital and analog LCD display
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Safety compliance with IEC standards and CAT IV 600 V rating
Applications
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Electrical preventive and predictive maintenance programs
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Testing insulation resistance of high-voltage switchgear
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Motor and generator insulation verification
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Cable insulation quality assessment
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Transformer winding insulation tests
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Acceptance testing of electrical installations
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Fault diagnostics, commissioning, and troubleshooting
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Test voltages (DC) | 250 V, 500 V, 1000 V, 2500 V, 5000 V selectable (50 V or 100 V steps) |
| Insulation resistance range | Up to 2 TΩ |
| Accuracy (typical) | ±5 % (within specified ranges), ±20 % at highest ranges |
| Capacitance measurement | Approximately 0.01 μF to 20.00 μF |
| Leakage current range | 1 nA to 2 mA |
| Timer (test duration) | 0 to 99 minutes (1-minute resolution) |
| Memory slots | 99 records with user labels |
| Display | Digital plus analog bar graph LCD |
| Battery / Power | 12 V rechargeable lead-acid |
| Safety rating | CAT III 1000 V, CAT IV 600 V |
| Standards compliance | IEC 61010-1, IEC 61010-2-030, IEC 61557-1, IEC 61557-2 |
| Warranty | 3 years |
| Operating temperature | –20 °C to +50 °C |
Package Contents
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Fluke 1550C insulation resistance tester
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Test cables with alligator clips (red, black, green)
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Infrared adapter with interface cable
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AC power cord
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Soft carrying case or hard case (kit dependent)
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Quick reference card and instruction manual
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USB-IR cable and PC interface software
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Certificate of calibration
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Optional IR3000 FC wireless connector
Call to Action
Ready to enhance your insulation testing capabilities? Order the Fluke 1550C 5 kV Insulation Tester now and equip your team with a robust, safe, and feature-rich tool trusted by professionals worldwide.
【FAQ】
Q1: What is the maximum test voltage of the Fluke 1550C?
The Fluke 1550C supports insulation testing voltages up to 5 kV DC, selectable in 50 V or 100 V increments.
Q2: Can the 1550C measure very high insulation resistance values?
Yes, it can measure insulation resistance up to 2 TΩ depending on test conditions.
Q3: Is there support for remote control or wireless data transfer?
Yes, with the optional Fluke Connect or IR3000 FC module, you can configure, start/stop tests, and view results wirelessly.
Q4: How many test records can be stored in the 1550C?
It can store up to 99 memory records, each with a user-defined label for later recall.
Q5: What safety rating and standards compliance does the 1550C meet?
The instrument meets CAT IV 600 V / CAT III 1000 V safety ratings and complies with IEC 61010-1 and IEC 61557 standards.
