LN 500 to XT5 Circuit Breaker Retrofitting Kit Instructions

This document provides instructions for replacing obsolete LN 500 circuit breakers with modern XT5 circuit breakers of the same size using a retrofitting kit, without modifying the switchgear's live parts. It includes safety procedures, disassembly steps, and notes that the kit is sized for the old device's performance, requiring consultation with ABB if the new breaker's ratings are higher.