MCCB with 63 A continuous rating and high interrupting capacity
The Siemens SENTRON 3VA1163-6EF36-0HA0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C through 50 °C, with a thermal-magnetic TM240 overcurrent release. Its interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — figures that place it in the high-fault-current class for industrial distribution panels where upstream transformer capacity or utility fault levels demand a breaker that can clear without cascading. The 63 A frame is derated above 55 °C: 60.48 A at 55 °C, stepping down to 56.7 A at 70 °C.