The Siemens 3VA2163-5JP32-0HL0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection, 3-pole, with a continuous current Iu of 63 A at 40 °C through 50 °C, derating to 53.55 A at 70 °C. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V — the 240 V figure covers most North American line-to-neutral faults; the 415 V rating handles European 400 V distribution without coordination headaches.
Mechanical endurance is 20 000 cycles — suitable for frequent switching in industrial panel applications.