What this 250 A SENTRON MCCB carries
Interrupting capacity runs 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V. That 690 V figure is low enough that a fault at that voltage likely needs an upstream current-limiting fuse; the 415 V and 500 V numbers give solid SCCR headroom for most industrial panel feeds. The auxiliary switch design is two HQ auxiliary switches.
The 86 mm depth keeps the breaker within the typical 200 mm deep enclosure; no need for a deeper gland plate.