It's a 3-pole unit rated 63 A continuous at 40 °C, and it holds that rating all the way up to 50 °C before it starts to derate: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. That thermal curve is what you check against your panel's ambient — if your enclosure runs hot, you're not losing much headroom. The interrupting ratings are the real story here. At 240 V AC it clears 220 kA; at 415 V AC it's 154 kA; at 440 V AC it's 121 kA; at 500 V and 690 V AC it's 17 kA.
No communication module on this unit — it's a plain breaker with hardwired aux contacts.
Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. The depth of 70 mm (2.76 in) is shallow enough for most distribution boards; watch the projection of the aux switches and UVR when calculating clearance to the enclosure door or deadfront.