At 240 V it interrupts 121 kA; at 415 V and 440 V it holds at 75.6 kA; at 500 V it drops to 52.5 kA; at 690 V it's 3 kA. The unit carries a communication function onboard — not just a bare thermal-magnetic — and uses summation-current ground-fault monitoring on the L+N conductors, which means it can detect leakage on the neutral path without a separate GFCI module. That saves a DIN slot and a wiring step in panels that require ground-fault protection on feeder circuits.
No special adapter plate needed for most SENTRON distribution boards. The 140 mm width is the same as other 4-pole 3VA breakers in the 25–63 A range, so swapping between ratings in the same panel footprint is straightforward.