ABB SACE Isomax S Shunt Opening Release Installation Instructions

This document provides installation instructions for a shunt opening release (undervoltage or shunt trip accessory) for ABB SACE Isomax S series circuit breakers, specifically models S1 and S2. It includes multilingual parts lists, wiring diagrams, and step-by-step guidance for mounting the release in the circuit-breaker cover, with notes on cable routing and voltage specifications.