Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — the 415 V figure is the one that governs most 400 V-class distribution panels. Front protection is IP40; the enclosure is sized at 130 mm height, 76.2 mm width, and 70 mm depth — a standard 3-pole MCCB footprint that fits most SENTRON panelboards without re-drilling.
Above that, the breaker derates: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. If the panel ambient runs near 60 °C, plan for a 3 A reduction — or step up one frame size if the load is continuous at 50 A.
Integrated shunt trip and auxiliary provisions
This variant ships with a factory-integrated shunt trip (STL) — design order code 3VA9688-0BL33 — for remote opening via a control voltage. No undervoltage release, no auxiliary contact, and no communication module are fitted. The breaker has a voltage trigger (shunt trip) but no phase-failure detection or ground-fault monitoring.