The Siemens SENTRON 3VA1010-3ED32-0AC0 is a 3-pole molded case circuit breaker rated for line protection, carrying 100 A continuously at 40 °C with no derating up to 50 °C.
At 240 V the breaker interrupts 75.6 kA — enough for high-fault utility feeds. At 415 V it still clears 52.5 kA, dropping to 32 kA at 440 V and 7.5 kA at 500 V and 690 V.
Full 100 A rating holds through 50 °C ambient. Above that it steps down: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C. Maximum power dissipation is 25 W — useful for enclosure heat-calc when packing multiple breakers in a row.
Physical fit and auxiliary configuration
It ships with two factory-fitted HQ auxiliary switches — no separate add-on module needed for basic status feedback. Undervoltage release and shunt trip are not built in (no voltage trigger, no undervoltage release); if your circuit requires either, you add them externally or choose a variant that includes them.