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ISL-C 440 Insulation Monitoring Device Instruction Manual

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This document is an instruction manual for the ISL-C 440, an insulation monitoring device designed for isolated IT (AC) networks with a rated voltage of 400 Vac. It details installation, wiring, micro-switch threshold settings (10-150 kΩ), and operation, including test/reset functions and remote signaling via a changeover relay.

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