The Siemens 3VA1063-4ED36-0AE0 is a 3-pole SENTRON molded case circuit breaker rated 63 A continuous at 40 °C, carrying the full 63 A up to 50 °C before it starts to derate — 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. That thermal curve means if your panel ambient runs 55 °C you lose 1 A; at 70 °C you lose 5 A. The TM210 thermal-magnetic release handles overloads and short circuits without an external trip unit. Interrupting capacity is the headline: 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. For a 480 V panel that 52.5 kA at 440 V is the closest published figure — expect similar headroom at 480 V. Maximum power loss is 17.3 W, which matters for enclosure heat rise calculations.
Dimensions are 130 mm height, 76.2 mm width (3 in), 70 mm depth (2.76 in). That 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm module positions on a DIN rail. The 70 mm depth keeps it clear of most gland plates and backpanel wiring troughs.