It carries a TM210 thermal-magnetic release, which gives you an inverse-time thermal trip for overloads and a fixed magnetic trip for short circuits. That's useful if your panel runs warm and you don't want to oversize the breaker. Three poles, so it switches all three phases together. Breaking capacity is 75.6 kA at 240 V, 52.5 kA at 415 V, and it still manages 7.5 kA up at 690 V — enough for most industrial distribution panels without needing a current-limiting upstream device.
Width of 76.2 mm is a 3-pole frame; if you're replacing an existing SENTRON 3VA1 or 3VA2 breaker, the footprint matches. It ships with provision for up to four auxiliary switches (HQ design), which is handy if you need status feedback back to a PLC or a remote monitoring system.