This MCCB delivers 242 kA breaking capacity at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. At 690 V the 4.5 kA rating is modest; verify the system's prospective short-circuit current at that voltage before specifying.
In a sealed, high-ambient panel — common in process plants or near ovens — the 70 °C derated figure (200 A) is the one to size your load against. Maximum power loss is 48 W, which contributes to enclosure heat rise and should be factored into the thermal budget.