Siemens 3VA1063-4ED32-0KC0 — 63 A SENTRON MCCB for Line Protection
Rated 63 A continuously at 40 °C ambient, with thermal derating to 58 A at 70 °C — the full-load current holds across typical panel ambient ranges, so the 63 A frame is the right pick for a 63 A feeder without oversizing. Breaking capacity reaches 121 kA at 240 VAC, 75.6 kA at 415 VAC, and 11.9 kA at 690 VAC — these numbers define the available fault current the breaker can safely interrupt at each system voltage, which is the primary selectivity and SCCR check for the distribution board.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — fits standard MCCB panel cutouts and busbar centers for a 3-pole 63 A frame.