The Siemens 3VA1163-4EF32-0AG0 is a SENTRON molded case circuit breaker (MCCB) for line protection, rated 63 A continuous current with a TM240 thermal-magnetic overcurrent release. It carries a 121 kA interrupting capacity at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it handles high-fault utility feeds or transformer secondaries without cascading upstream breakers.
Three-pole design, 76.2 mm wide and 70 mm deep — fits a standard 3-pole MCCB slot in a SENTRON panelboard or standalone enclosure. IP40 on the front, so it's suited for indoor panel mounting where dripping water isn't a concern. The auxiliary contact version includes one auxiliary switch plus one trip alarm switch (HP type), giving a clean signal back to a PLC or annunciator on trip.
