Fluke 1555

Fluke 1555 – Overview

The Fluke 1555 is a high-voltage insulation resistance tester designed for critical industrial and utility applications. It delivers insulation testing up to 10 kV, with measurement capability up to 2 TΩ. The instrument includes built-in DAR/PI ratio calculation, ramp testing, leakage current measurement, and live voltage detection, making it a reliable choice for predictive and preventive maintenance.

Key Features

• Insulation test voltages from 250 V to 10 kV

• Insulation resistance measurement up to 2 TΩ

• Leakage current measurement from 1 nA to 2 mA

• Built-in DAR (Dielectric Absorption Ratio) and PI (Polarization Index)

• Ramp function for advanced testing diagnostics

• Programmable timer (0–99 minutes)

• Large analog/digital display with bar graph

• Stores up to 99 test results with time stamps

• Over 750 insulation tests per battery charge

• CAT IV 600 V / CAT III 1000 V rated

Technical Specifications

• Model: Fluke 1555

• Display: Analog/digital LCD with bar graph, 75 × 105 mm

• Insulation Resistance Range: up to 2 TΩ

• Test Voltage: Selectable from 250 V to 10,000 V

• Voltage Accuracy: –0% to +10% at 1 mA load

• Leakage Current Range: 1 nA to 2 mA

• Capacitance Range: 0.01 µF to 15 µF

• Ramp Function: Programmable adjustable increase in voltage

• Timer: 0 to 99 minutes, resolution 1 second

• Live Circuit Detection: 30 V to 660 V AC/DC

• Battery Type: 12 V rechargeable lead-acid

• Battery Life: >750 insulation tests per charge

• Charging Requirements: 85 V to 250 V AC, 50/60 Hz

• Operating Temperature: –20 °C to +50 °C

• Storage Temperature: –20 °C to +65 °C

• Humidity: 80% RH at 31 °C, 50% at 50 °C

• Dimensions: 269 × 277 × 160 mm

• Weight: approx. 3.7 kg

• Safety Rating: CAT IV 600 V / CAT III 1000 V

• Enclosure Protection: IP40

Applications

• Insulation testing for transformers, motors, generators, and cables

• Predictive and preventive maintenance in industrial plants

• High-voltage diagnostic testing with DAR/PI evaluation

• Field use for long-term asset reliability

Why Choose Fluke 1555

• High test voltage range up to 10 kV for industrial insulation systems

• Wide resistance measurement capability up to 2 TΩ

• Built-in diagnostic functions including DAR, PI, ramp, and timer

• Long-lasting battery for extended field use

• Designed for safety with CAT IV 600 V rating

Order Now

The Fluke 1555 10 kV Insulation Resistance Tester is available and ships worldwide.

Original Manufacturer Packaging

These products are industrial surplus items preserved in the original manufacturer box. Learn More

DDPARTSSOLUTION Packaging

These products are industrial surplus items shipped in secure DDPARTSSOLUTION protective packaging. Learn More

Refurbished

These products have been previously installed or may show cosmetic signs of prior handling. Learn More