Fluke 1550C Insulation Resistance Tester 5 kV Megohmmeter

Fluke 1550C Insulation Resistance Tester is a professional-grade megohmmeter designed for testing high-voltage electrical equipment such as motors, generators, switchgear, and power cables. Built for preventive and predictive maintenance programs, it delivers accurate insulation diagnostics while enhancing operator safety and productivity.

With digital insulation testing up to 5 kV and resistance measurements up to 2 TΩ, the 1550C enables reliable evaluation of insulation health. Automatic DAR and PI calculations, combined with a guard system to reduce surface leakage, ensure precise results. Wireless connectivity through Fluke Connect allows remote operation, real-time trending, and simplified reporting.

Key Features

• High-Voltage Insulation Testing: Performs digital insulation tests up to 5 kV

• Automatic DAR and PI Calculations: Evaluates insulation condition without additional setup

• Guard Terminal System: Minimizes surface leakage effects on high-resistance measurements

• Selectable Test Voltages: Adjustable from 250 V to 1000 V in 50 V steps and above 1000 V in 100 V steps

• Large Digital/Analog LCD: Provides clear, easy-to-read test results

• Fluke Connect Compatibility: Enables remote testing, trending, and report generation

Benefits

• Improves Electrical Safety: CAT III 1000 V / CAT IV 600 V safety ratings protect users in high-energy environments

• Supports Predictive Maintenance: Identifies insulation degradation before equipment failure

• Enhances Testing Efficiency: Long battery life supports over 750 tests between charges

• Reduces Time in Hazard Zones: Remote operation keeps technicians at a safe distance

• Simplifies Data Management: Stores up to 99 labeled measurements for easy recall and analysis