What the interrupting ratings mean for your fault-current study
At 240 V it interrupts 242 kA; at 415 V and 440 V it holds at 187 kA; at 500 V it drops to 121 kA; at 690 V it is rated 3 kA. That steep roll-off above 500 V means this is a 480 V class MCCB — do not spec it for a 600 V feeder expecting the same fault-clearing muscle.
Auxiliary switch and shunt trip — what is wired in
It also carries a shunt trip (STL) release. That means you get remote trip capability and status feedback without opening the breaker cover to add accessories — useful for a panel where the MCCB is part of an E-stop chain or monitored by a PLC. Power loss is listed at 5.4 W maximum. That is low enough that thermal rise inside a crowded enclosure is manageable, but if you are stacking several of these on a bus, add it to your enclosure heat budget.