The Siemens SENTRON 3VA1110-4EF36-0BC0 is a 3-pole molded case circuit breaker rated for 100 A continuous at 40 °C, with a breaking capacity of 121 kA at 240 V AC. That SCCR headroom means it can sit upstream of a distribution panel or motor control center and still clear a bolted fault without cascading — a key consideration for the site electrical engineer coordinating selectivity.
Above that, it derates linearly: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. For the commissioning engineer, the derating curve means the breaker can be installed in a warm enclosure without oversizing, as long as the actual load current stays below the derated value at the expected ambient.
The interrupting rating varies with system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. The steep drop above 440 V is typical for MCCBs with this frame size — the 11.9 kA at 690 V still covers most industrial 690 V distribution, but the site engineer should verify the available fault current at the point of installation.