It carries a 242 kA breaking capacity at 240 VAC, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — so the interrupting rating is voltage-dependent, and the 690 V figure is the one to watch if you're on a 690 V corner-grounded delta or IT system.
Fit and panel integration
Thermal performance and power loss
Maximum power loss is 13.5 W, which is modest for a 100 A MCCB and keeps the enclosure heat rise manageable in a crowded panel.
