The Siemens SENTRON 3VA2463-6JP32-0AA0 is a 3-pole molded case circuit breaker rated 630 A at 40 °C, with an ETU550 electronic trip unit. The ETU550 provides adjustable long-time, short-time, instantaneous, and ground-fault protection (N-conductor protection adjustable OFF; 20% to 160%). Communication function is built in, so it can report trip events and load data to a higher-level system without an add-on module.
Derate linearly as the panel warms: 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. Interrupting capacity drops with system voltage: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V.
Front protection class IP40 keeps dust and tools out of the trip-unit compartment.