Fluke Insulation Tester 250 V Min, 5 kV Max, 1 TΩ Range, CAT IV 600 V, CAT III 1000 V FLUKE 1550C/KIT

Fluke FLUKE 1550C/KIT insulation tester is a rugged, portable diagnostic instrument designed for industrial and electrical test applications requiring accurate insulation resistance measurements. Engineered to apply controlled DC test voltages from 250 V to a maximum of 5000 V, it’s suitable for high-voltage breakdown testing for switchgear, motors, generators, and cables. This instrument supports insulation health monitoring and fault detection in demanding environments.

The device features a wide measuring range with resistance capability from 5 MΩ up to 1 TΩ, enabling detection of early-stage insulation degradation. It incorporates safety category ratings of CAT IV 600 V and CAT III 1000 V to protect users working on live circuits in high-energy sites.

Powered by a rechargeable 12 V lead-acid battery (compatible with Yuasa NP2.8-12), it enables extended field testing without frequent recharging. The instrument’s sensitive 2 nA test current helps identify very low levels of leakage current, critical for reliable early fault detection.

For ease of use, a large LCD display provides simultaneous analogue and digital readouts, improving readability and data interpretation. Its integrated guard system effectively reduces surface leakage current interference during high resistance measurements, increasing accuracy.

Additionally, the tester supports wireless data transmission to mobile devices, facilitating result capture, remote trending, and easier analysis of ramp tests commonly involved in cable dielectric and breakdown investigations.

This model is ideal for preventive maintenance testing in industrial, electrical, manufacturing, and utility sectors including motor winding insulation testing, medium-voltage switchgear insulation checks, and generator insulation condition monitoring.

Delivers broad resistance coverage from 5 MΩ to 1 TΩ for ageing insulation diagnostics. Features CAT IV 600 V and CAT III 1000 V safety ratings for user protection on live-site operations. Provides sensitive 2 nA test current for early detection of insulation leakage.

Equipped with a rechargeable 12V lead-acid battery for extensive field testing capabilities. Wireless data transfer supports remote result review and trending. Large LCD display shows simultaneous analogue and digital readings.

Includes integrated guard system to minimize surface leakage impacts during high-resistance tests. Ideal for preventive testing on motors, switchgear, generators, and cable dielectric testing. Compliance with CE and CSA safety and performance standards.

The FLUKE 1550C/KIT insulation tester is the definitive tool for technicians and engineers who require high accuracy, robust safety standards, and flexible data management for electrical insulation testing in demanding industrial environments. Explore more products like this in the Electrical Test & Measurement category at EnvMart.

Explore more products in our Electrical Test & Measurement category.