The Siemens SENTRON 3VA2063-7JP42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 63 A across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. The interrupting ratings tell you where this breaker can safely clear a fault: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V.
Those are the envelope dimensions for a 4-pole SENTRON 3VA2063 frame — the width is the critical number for DIN-rail or mounting-plate spacing. An optional motor drive is available as a field-addable extension, which matters if you need remote tripping or reset in an automated line.