The 3-pole construction and interrupting ratings of 187 kA at 240 V and 121 kA at 415 V mean it can clear high-fault currents on a 480 V or 400 V service without cascading upstream.
The breaker occupies 105 mm width, 181 mm height, and 86 mm depth — a standard SENTRON 3VA2 frame footprint that drops into existing DIN-rail or screw-mount panel layouts without re-drilling. The basic switch inside is order code 3VA20635HN320AA0, so if you need a replacement subassembly that's the part to cross-reference.