The Siemens SENTRON 3VA2163-7HN32-0BL0 is a 3-pole molded case circuit breaker rated for 63 A continuous with no derating across the full operating temperature range from -25 °C to 70 °C — meaning it delivers its full current rating even in a hot panel environment. Breaking capacity is 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V, so the same breaker handles high-fault service entrance positions on lower voltages and still clears faults on 690 V systems.
The basic switch is order code 3VA2163-7HN32-0AA0; the -0BL0 suffix adds the specific auxiliary switch and undervoltage release configuration documented here.