E1-E6 to E2.2-E6.2 Air Circuit-Breaker Retrofitting Instructions

This document provides instructions for replacing obsolete E1-E6 series withdrawable circuit-breakers with newer E2.2-E6.2 series plug-in air circuit-breakers of the same size, without modifying the switchgear's live parts. It includes safety procedures, compatibility requirements, and notes that the retrofitting kit is sized for the old device's performance even if the new breaker has higher ratings.