The interrupting ratings tell the real story: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. At the common 400–480 V industrial range, though, it has headroom for most transformer-fed installations. Maximum power loss is 4 W, so heat buildup in a dense panel is manageable.
The 86 mm depth means it clears most shallow enclosures, but verify the door clearance if you are mounting it with rotary handle extensions.
The 63 A frame is rated for motor protection, so the thermal-magnetic or electronic trip curve is tailored for motor inrush — not for general distribution where you might want a higher short-time delay. Phase failure detection is integrated, which means it will trip on loss of one phase, protecting the motor from single-phasing.