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Fluke | Insulation Testers

Fluke 1577 Insulation Multimeter

The Fluke 1577 Insulation Multimeter combines a digital insulation tester with a full-featured, true RMS digital multimeter in a single, compact, handheld unit. This versatile tool is ideal for troubleshooting and preventive maintenance of electrical systems, including motors, generators, cables, and switchgear. It offers insulation testing up to 600 MΩ and voltage measurements up to 1000 V, providing comprehensive testing capabilities in one device..

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  • Special Features
  • Specification

The Fluke 1577 Insulation Multimeter is designed to provide accurate and reliable insulation resistance measurements, along with comprehensive multimeter functions, in a single portable device. Its dual functionality eliminates the need for multiple tools, streamlining testing processes and enhancing efficiency. The device's rugged construction ensures durability in demanding environments, while its user-friendly interface facilitates ease of use. Whether performing preventive maintenance or troubleshooting electrical systems, the Fluke 1577 offers the versatility and reliability needed for a wide range of applications.

  • Dual Functionality: Integrates insulation testing and digital multimeter functions in one device.

  • Insulation Test Voltages: Offers 500 V and 1000 V test voltages for insulation resistance measurements.

  • Wide Insulation Resistance Range: Measures insulation resistance from 0.1 MΩ to 600 MΩ.

  • True RMS Multimeter: Accurately measures AC/DC voltage, current, resistance, and continuity.

  • Live Circuit Detection: Prevents insulation tests if voltage >30 V is detected, ensuring user safety.

  • Auto Discharge of Capacitive Voltage: Automatically discharges capacitive voltage after insulation testing.

  • Large Backlit Display: Features a clear, easy-to-read display with backlighting for low-light conditions.

  • Rugged Design: Built to withstand harsh environments, with an IP40 rating for dust and water resistance.

  • Long Battery Life: Provides over 1000 hours of operation on a single set of batteries.

  • Three-Year Warranty: Comes with a standard three-year warranty for peace of mind.

Specification Details
Insulation Test Voltages 500 V, 1000 V
Insulation Resistance Range 0.1 MΩ to 600 MΩ
Insulation Test Accuracy ±(3% + 5) at 50 V; ±(3% + 5) at 100 V; ±(1.5% + 5) at 250 V; ±(2.0% + 5) at 500 V; ±(2.0% + 5) at 1000 V
Maximum Voltage Measurement 1000 V AC/DC
Voltage Measurement Accuracy ±(0.2% + 2) DC; ±(2% + 3) AC
Current Measurement Range 0.1 mA to 400 mA
Current Measurement Accuracy ±(1.0% + 2) DC; ±(2.0% + 2) AC
Resistance Measurement Range 0.1 Ω to 50 MΩ
Resistance Measurement Accuracy ±(1.2% + 2)
Display 6000-count LCD with backlight
Battery Life Over 1000 hours
Operating Temperature -20°C to +55°C
Storage Temperature -40°C to +60°C
Humidity 0% to 95% (10°C to 30°C); 0% to 75% (30°C to 40°C); 0% to 40% (40°C to 55°C)
Dimensions (H x W x D) 203 mm x 100 mm x 50 mm
Weight 624 g
Safety Rating CAT III 1000 V / CAT IV 600 V
IP Rating IP40
Warranty 3 years