The 630 A rating holds flat from 40 °C up to 50 °C ambient; above that it derates to 618 A at 55 °C, 607 A at 60 °C, 595 A at 65 °C, and 583 A at 70 °C.
Breaking capacity — the real selectivity number
Breaking capacity varies sharply with system voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 11.9 kA at 690 V.
That's a 4-pole frame — the width is the key check for existing panel gutters and busbar centers. If your BOM calls for a trip indicator or voltage trigger, this isn't that version. The TM240 release means the thermal element is calibrated for a 240 A frame trip — the breaker itself is a 630 A continuous device, so the trip unit matches the frame.