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M1M 20C Power Meter Installation Manual

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This document is the installation manual for the ABB M1M 20C power meter, providing instructions for assembly, wiring, commissioning, and configuration. It covers network types (3-phase 4-wire with 3 CTs, 3-phase 3-wire with 2 or 3 CTs), password setup, CT/VT ratio settings, button functions, and safety warnings for high-voltage electrical installation.

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