63 A continuous, flat across the thermal range
The Siemens 3VA2063-6HN32-0AH0 is a SENTRON molded case circuit breaker rated for 63 A continuous current from 40 °C all the way up to 70 °C — no derating curve to chase in a warm panel. Breaking capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, then 121 kA at 500 V, dropping to 3 kA at 690 V. That's a high-interrupting rating for a 63 A frame; it clears severe fault currents without cascading upstream breakers in most distribution designs.
Three-pole, 105 mm wide, 181 mm tall, 86 mm deep — mounts into a standard SENTRON distribution board or standalone enclosure. Operating range from -25 °C to 70 °C, storage from -40 °C to 80 °C.