Its 50 A continuous current (Iu) holds flat from 40 °C to 50 °C, then derates to 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C — so in a warm panel you lose 5 A by the time ambient hits 70 °C. The breaking capacity is the headline: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The 70 mm depth, 76.2 mm width, and 130 mm height fit the standard SENTRON 3VA footprint — drops into a panel that was laid out for a 3VA frame without re-drilling the mounting plate.
Built-in auxiliaries and release options
The shunt trip (STL) is integrated for remote tripping via a control voltage; the integrated auxiliary trip order code is 3VA9688-0BL33 if you need a spare. Latching endurance is rated at 15,000 operations, which is typical for a distribution MCCB not cycled daily like a contactor.