It carries a rated current of 63 A at 40 °C and holds that rating through 50 °C before a slight thermal derating curve begins — at 55 °C it's still 62 A, at 65 °C it's 60 A, and at 70 °C it's 58 A, so the full 63 A is usable across most normal panel ambient conditions. The breaking capacity is the headline number that decides fault-clearing fit: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole MCCB footprint that drops into most DIN-rail or panel-mount enclosures without surprises.
The 63 A rating at 40 °C with minimal derating up to 50 °C means this breaker handles continuous loads like lighting panels, small distribution feeders, or motor branch circuits without needing oversizing for ambient temperature. Compared to a lower-rated sibling like the 3VA1110-5EF32-0LA0 (which carries a lower current frame), this 3VA1163-4EF36-0HA0 is the higher-current, higher-breaking-capacity option in the 3VA1 family. The physical footprint is the same 3-pole width, so a panel designed for the smaller frame can accept this one without re-drilling or busbar rework — the mounting and connection pattern is consistent across the 3VA1 line.