The interrupting ratings are the real story here: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. The auxiliary switches let you feed status back to a PLC or indicator lamp without adding external relays.
Panel integration and physical fit
Power loss is 12.5 W maximum at rated load. In a densely populated panel, that heat adds up — account for it in your thermal budget, especially if the breaker is enclosed in a separate compartment. The storage range is wider because it's not dissipating heat — that's the limit for warehousing and shipping, not running.