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ISL-A 115 / ISL-A 230 Insulation Monitoring Device Manual

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This instruction manual covers the ISL-A 115 and ISL-A 230 insulation monitoring devices, designed for continuous monitoring of insulation resistance in isolated IT electrical distribution networks. It details installation, wiring, micro-switch settings for alarm and trip thresholds (10-300 kΩ), fail-safe and reset modes, and front-panel LED signaling for fault polarity indication.

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