The Siemens 3VA2463-6KP32-0JL0 is a 3-pole SENTRON molded case circuit breaker rated for 630 A continuous at 40 °C, with a line protection profile and the ETU850 electronic trip unit onboard.
At 50 °C it carries 570 A; at 60 °C, 510 A; at 70 °C, 450 A. The maximum power loss of 162 W at full load means the enclosure needs ventilation or forced air if it's in a sealed cabinet with other heat sources.
Trip unit and auxiliary wiring
The ETU850 electronic trip unit provides LSI protection curves and a communication function for remote monitoring or power metering. A shunt trip (STL) release is built in.
