The Siemens SENTRON 3VA2463-6HL32-0JC0 is a 3-pole molded case circuit breaker rated for 630 A continuous current, with a maximum interrupting capacity of 242 kA at 240 V AC. That interrupting rating drops to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V — so the available fault current at your service voltage is the real gate. This is a line-protection design (not motor-protection), so it's intended for feeder and main breaker duty in distribution panels, not for direct motor starting.
The breaker measures 138 mm wide, 248 mm high, and 110 mm deep — a 3-pole frame that fits standard MCCB mounting footprints in distribution boards. The 110 mm depth (4.33 in) is the dimension to watch when the panel door clearance is tight or when routing cables behind the breaker.
Ambient and storage limits
Maximum power loss is 162 W at rated load — enough heat to factor into enclosure ventilation, especially if multiple breakers are ganged.