MS495, MS496, MS497 Moulded Case Circuit Breaker Technical Specifications

This document provides technical specifications for a series of moulded case circuit breakers (MS495, MS496, MS497) from Siemens and ABB, including rated voltages, currents, and breaking capacities (Icu/Ics) at AC 400V and 690V. It also details auxiliary components such as alarm switches (SK4), auxiliary contacts (HK4), undervoltage trip units (UA), shunt releases, and their respective contact arrangements and rated operational currents (AC-15, AC-12, DC-13).