ISL-C 600 Insulation Monitoring Device Manual

This instruction manual describes the ISL-C 600, an insulation monitoring device for isolated IT AC networks up to 760 Vac, which continuously monitors insulation resistance by injecting a DC measurement signal and reading the dispersion current to earth. It features two adjustable trip thresholds (ALARM and TRIP) set via front micro-switches, fail-safe relay programming, manual or automatic reset, and a bar LED display showing insulation levels from 5 to 500 kΩ.