Fluke Insulation Tester 250 V Min, 10 kV Max, 2 TΩ Resistance, Safety CAT IV CAT III FLUKE-1555 FC w/IR3000FC

Fluke FLUKE-1555 FC w/IR3000FC is a portable, battery-powered insulation tester designed for industrial and electrical maintenance professionals who require wide voltage testing capabilities and robust insulation resistance measurement up to 2 TΩ.

This insulation tester supports test voltages ranging from a minimum of 250 V up to 10,000 V (10 kV), making it suitable for assessing insulation integrity on electrical equipment such as switchgear, motors, and generators. The tester is ideal for preventative and predictive maintenance programs where trending insulation condition is critical.

The instrument features a large LCD screen with combined digital and analogue displays, allowing clear and rapid readings of insulation resistance, leakage current, and capacitance. Its rechargeable lead-acid battery ensures over 750 tests per full charge, supporting extended onsite use without frequent recharging.

Safety is paramount with this device, offering CAT IV 600 V and CAT III 1000 V ratings, live circuit voltage detection up to 600 V AC/DC to warn against inadvertent testing on energized circuits. It operates efficiently between -20°C and 50°C and maintains accuracy under humid conditions (80% relative humidity, decreasing linearly to 50% at 50°C).

Connectivity is enhanced through an infrared-to-wireless interface that transmits test results to a dedicated mobile app. This enables remote start/stop control, data storage, trending, and sharing, fostering auditable data trails and improved asset management. The CE and CSA certifications confirm compliance with recognized safety and electromagnetic standards.

Operates over a wide test voltage range of 250 V to 10 kV for versatile insulation testing. High insulation resistance measurement capabilities up to 2 TΩ support precise diagnostics. Rechargeable battery lasts for 750+ tests, minimizing downtime and battery replacement costs.

Safety rated for CAT IV 600 V and CAT III 1000 V environments ensures user protection. Large clear LCD with digital and analogue displays for accurate, rapid readings. Wireless data transmission facilitates remote operation and comprehensive test record keeping.

Robust operation across a broad temperature and humidity range suitable for industrial sites. Compact, portable design weighing just 3.7 kg with convenient dimensions for field use.

Fluke insulation testers are essential tools in electrical testing & measurement, suited for industrial, manufacturing, construction, and maintenance applications. Browse EnvMart for a full range of Fluke electrical test instruments and Insulation Testers.