What this MCCB does on the line
The Siemens SENTRON 3VA2010-6KQ32-0AA0 is a 3-pole molded case circuit breaker rated for 100 A continuous at ambient temperatures from 40 °C through 70 °C — no derating needed across that range, which simplifies panel design in warm enclosures. Its interrupting capacity hits 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — these are the numbers that decide whether this breaker clears a fault without upstream coordination or blows apart. Fitted with the ETU860 electronic trip unit, it handles line protection duty with a communication function (Modbus-capable via the SENTRON bus) and supports an optional motor drive for remote reset.
The 3VA2010-6KQ32-0AA0 measures 105 mm wide, 181 mm tall, 86 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or standalone enclosure without re-drilling gland plates. Max power loss is 13.5 W, so ventilation in a sealed cabinet is manageable; no forced cooling required for a single unit.