That phase-failure logic is the difference between a motor that coasts to a stop on a lost leg and one that cooks the winding while still spinning.
Rated 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — those are the maximum fault currents this MCCB can safely interrupt at each voltage level. On a 480 V panel with a 65 kA available fault current, this breaker has headroom to spare; at 690 V you need to confirm the 17 kA rating covers your installation's prospective short-circuit current.
Above that it starts to taper: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C.
Max power loss is 75 W, so account for that heat in your enclosure thermal calculation.