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Fluke 1535 Insulation Resistance Tester

Fluke | Insulation Tester

Fluke 1535 Insulation Resistance Tester

MPN / Part No: 1535
Price updated: Sep 24, 2026

The Fluke 1535 insulation resistance tester is a portable and accurate device for measuring insulation resistance in electrical equipment. This model is designed for test voltages up to 2500 V and a measurement range up to 500 GΩ, making it ideal for industrial, power plant, and solar system applications.

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The Fluke 1535 insulation resistance tester is an advanced tool for assessing the health of the insulation of electrical and industrial equipment. With selectable test voltages ranging from 250 V to 2500 V and a measurement range of up to 500 GΩ, it provides high accuracy in evaluating insulation quality.
Its ergonomic design, large display, and user-friendly interface enable engineers and technicians to easily conduct insulation tests.

The 1535 model, rated CAT IV 600 V, ensures safety when working with high-voltage equipment, and with its powerful battery, it can perform over 1300 tests on a single charge. This product is an excellent choice for preventive maintenance testing in electrical, energy production, and solar system industries.


🔹 Key Features of Fluke 1535

  • Selectable test voltage ranging from 250 V to 2500 V

  • Insulation resistance measurement up to 500 GΩ

  • Automatic calculation of Polarization Index (PI) and Dielectric Absorption Ratio (DAR)

  • Safe design with CAT IV 600 V rating

  • Ability to perform over 1300 tests on a single battery charge

  • Large digital display with bar graph

  • Durable and portable structure for industrial environments


🔹 Technical Specifications of Fluke 1535

Feature Value
Test Voltage 250 V / 500 V / 1000 V / 2500 V
Insulation Resistance Range Up to 500 GΩ
Test Current Maximum 5 mA
Safety Rating CAT IV 600 V
Number of Tests per Charge Over 1300 tests
Dimensions 184 × 211 × 93 mm
Weight Approximately 1.3 kg
Ingress Protection Rating IP40

❓ Frequently Asked Questions (FAQ)

Q: Is the Fluke 1535 suitable for solar panels?
A: Yes, due to the high test voltage of up to 2500 V and the wide measurement range, it is ideal for testing the insulation of cables and solar modules.

Q: What is the difference between Fluke 1535 and 1537?
A: The 1537 model has data storage and transfer capability, while the 1535 lacks internal memory and is designed to be simpler.

Q: Is the device safe to use in industrial environments?
A: Yes, with a CAT IV 600 V rating and IP40, it is fully suitable for industrial settings.

Q: How many tests can be performed on each charge?
A: Over 1300 tests can be performed on a full battery charge.


🔚 Conclusion

The Fluke 1535 insulation resistance tester is one of the most accurate and reliable insulation testing tools on the market. With its rugged industrial design, high safety features, and powerful performance, it is an ideal choice for electrical experts, maintenance engineers, and large industries.


📎 Official Datasheet Link

👉 Download Fluke 1535 Datasheet (PDF)

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Fluke

Fluke

United States

Fluke Corporation is an American brand that specializes in measurement, testing, and monitoring tool...

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