Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that define the fault-clearing capability at the point of installation and drive coordination with downstream devices.
Rating and thermal behavior
Derating begins at 55 °C (120 A), dropping to 112.5 A by 70 °C. For a panel that runs warm — say a packed enclosure near a furnace line — that 12.5 A loss between 50 °C and 70 °C is the figure to budget.
Integration and auxiliaries
Front protection is IP40 — sealed against tools and small wires, not washdown. The integrated shunt trip (STL) is ordered separately as 3VA9688-0BL33.