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Masterpact M to Emax2 Draw-Out Circuit-Breaker Retrofitting Guide

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This document provides instructions for replacing obsolete Masterpact M draw-out air circuit-breakers (800A to 6300A) with modern Emax2 draw-out air circuit-breakers of the same size, without modifying the switchgear's live parts. It includes safety procedures, compatibility checks, and conditions for maintaining electrical characteristics such as rated current and breaking capacity.

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