Breaking capacity is 220 kA at 240 V, dropping to 154 kA at 415 V and 121 kA at 440 V; at 500 V and 690 V it still holds 17 kA. That spread means it handles high-fault utility feeds on the low-voltage side without cascading upstream.
Thermal performance and panel fit
Full 32 A rating holds through 50 °C ambient; at 55 °C it derates to 31 A, and at 70 °C it's still delivering 30 A. That's a shallow derate curve — useful if the breaker sits near other heat sources in a crowded enclosure. Dimensions are 70 mm deep, 101.6 mm wide, and 130 mm tall — a compact 4-pole footprint for DIN-rail or direct-mount integration.