The Siemens SENTRON 3VA2163-7MS32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous at 40 °C, with a massive 330 kA interrupting capacity at 240 V AC. The starter protection design tailors the trip curve for motor starting inrush, so it won't nuisance-trip on a 3-phase motor start but still protects the branch circuit.
Ratings that matter for fit
The interrupting curve drops from 330 kA at 240 V to 242 kA at 415/440 V, then 187 kA at 500 V, and 3.7 kA at 690 V. That steep roll-off above 500 V means this breaker is optimized for 240–480 V distribution; at 690 V it's still adequate for most motor branch circuits but not for high-fault buswork.
Dimensions: 181 mm height, 105 mm width, 86 mm depth. That footprint matches the standard SENTRON 3VA2 frame size — it drops into the same mounting cutout as other 3VA2 three-pole breakers. The UVR and auxiliary switches are internal, no extra modules needed.