MS132-4T Circuit Breaker Tripping Characteristic Curve

This document presents the tripping characteristic curve for the ABB MS132-4T circuit breaker for transformer protection, covering current settings from 2.5 to 4 amps. It details the time-current behavior from a cold state, including electromagnetic release values, tolerances for three-pole currents between 3 and 8 times the setting, and key multiples of rated current.