The 3VA1163-5EF36-0AC0: Interrupting capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. The TM240 overcurrent release is a thermal-magnetic type, fixed at 63 A. Two HQ auxiliary switches ride along for status feedback.
The 76.2 mm width (3 inches) is standard for a 3-pole MCCB in this class — it occupies one 3-inch mounting slot in a SENTRON distribution panel or switchboard. Depth of 70 mm leaves room for rear busbar connections without crowding the gland plate. Power loss is 17.3 W maximum — modest for a 63 A breaker, so thermal management inside a sealed enclosure is straightforward.