The Siemens SENTRON 3VA2010-5HL32-0KC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V, so it handles high-fault utility feeds and transformer secondaries without cascading upstream.
At 187 kA at 240 V, this MCCB sits in the high-interrupting tier of the SENTRON 3VA line — it clears faults that would weld a lower-rated device closed. At 690 V the interrupting drops to 3 kA, which still covers most motor-circuit faults but not a bolted fault at the transformer secondary.
The breaker measures 105 mm wide, 181 mm high, and 86 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON distribution panels and third-party enclosures with a 105 mm cutout. Maximum power loss is 13.5 W.