Breaking capacity runs 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V — that covers most industrial service-entrance and sub-distribution scenarios where high fault current is expected. The 63 A frame is fully rated from 40 °C up to 50 °C without derating; at 70 °C ambient it still carries 58 A, so it holds up in a warm enclosure. Dimensions are 101.6 mm wide, 130 mm high, 70 mm deep — fits a standard 4-pole MCCB footprint on DIN rail or panel-mount.
If your BOM calls for adjustable electronic trip or add-on modules (shunt trip, auxiliary contacts), this base unit won't carry them without the accessory slot being populated separately.