SENTRON 3VA1025-3ED32-0AH0 — 25 A MCCB with TM210 Release
Its breaking capacity varies by system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — covering most low-voltage distribution and motor branch circuits in industrial panels. The 70 mm depth and 76.2 mm width fit standard DIN-rail enclosures; the IP40 front protection suits panel-mount installations where the breaker face is behind a closed door.
Thermal Derating and Continuous Current
The 25 A rating holds flat from 40 °C through 50 °C, then derates to 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C — a 10 % drop at the upper operating limit. This means a panel designer can count on full 25 A capability in typical 40–50 °C enclosures; above that, the load must be trimmed or the breaker upsized to the next frame.
Auxiliary Contacts and Trip Indication
Factory-fitted with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), giving remote status for both open/closed position and fault tripping without an add-on module. The trip indicator provides local visual confirmation of a thermal or magnetic trip event, useful during commissioning and fault isolation.