Rated current and breaking capacity
The Siemens 3VA1163-6EF42-0AA0 is a SENTRON molded case circuit breaker rated 63 A continuously at 40 °C, with the same rating holding through 50 °C and only derating to 58 A at 70 °C — so it carries its full nameplate current across typical panel ambient temperatures without a derate penalty. Breaking capacity is 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, dropping to 17 kA at 500 V and 690 V.
Overcurrent release and protection design
The 3VA1163-6EF42-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep — a 4-pole MCCB that fits standard Siemens SENTRON mounting patterns. The 70 mm depth is shallower than many equivalent-frame breakers, which helps when panel depth is constrained.