The Siemens SENTRON 3VA2110-7MN32-0DH0 is a 3-pole molded case circuit breaker rated for 100 A continuously across the full ambient range of 40 °C to 70 °C — no derating needed as the panel warms near furnace zones or drive cabinets. Its interrupting capacity hits 330 kA at 240 V, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V; at 690 V it still clears 3.7 kA. That kind of fault-clearing headroom means this breaker can sit upstream of a motor starter or downstream of a transformer without worrying about cascading failures on a high-fault bus.
For buyers with a BOM line frozen around this MPN, the 100 A rating and 3-pole footprint are stable.
Maximum power loss is 12.5 W, so internal cabinet heat rise stays manageable even in a densely packed panel.
Key ratings in context
At 415 V (common 3-phase industrial voltage), 242 kA still exceeds what most distribution panels see. The 690 V rating of 3.7 kA is lower, but at that voltage the breaker is typically protecting a motor circuit, not a main bus. Trip indicator is present, and the undervoltage release ensures the breaker opens on a voltage sag — useful for preventing single-phasing on a motor load.