At 415 V the interrupting rating is 75.6 kA, at 440 V it is 52.5 kA, and at 690 V it drops to 11.9 kA — the voltage-dependent curve is typical for MCCBs; the 690 V figure still covers most industrial motor branch circuits.
This MCCB carries its full 16 A rating from 40 °C up through 50 °C ambient. At 55 °C it derates to 15.36 A, at 60 °C to 15.04 A, and at 70 °C to 14.4 A. For a panel running hot near the top of a crowded enclosure, that derating curve is what determines whether the breaker holds a 16 A load without nuisance tripping.
Width is 76.2 mm, depth 70 mm, height 130 mm.