The Siemens 3VA2163-6KP36-0AA0 is a SENTRON 3-pole molded case circuit breaker rated for 63 A continuous current with an ETU850 electronic trip unit, designed for line protection in distribution panels. It carries interrupting ratings of 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V — so it clears high fault currents on the low-voltage side while still handling the reduced fault energy at 690 V. The breaker holds its full 63 A rating across the entire ambient range from 40 °C to 70 °C, which simplifies panel derating calculations.
At 105 mm wide × 181 mm tall × 86 mm deep, this breaker drops into a standard 3-pole MCCB footprint on a DIN rail or panel-mount base. The 86 mm depth (3.39 in) leaves clearance behind the door for wiring gutters and the ETU850's communication wiring.