ABB D1M 20 Multi-Function Power Meter Installation Guide

This document provides installation, configuration, and operation instructions for the ABB Multi-Messgerät D1M 20, a multi-function power meter. It covers mounting, wiring diagrams for various network types (3-phase 4-wire, 3-phase 3-wire, 2-phase, 1-phase), data entry procedures, initial setup (password, date/time, network type, CT/VT ratios), and multilingual safety warnings.