Its TM240 thermal-magnetic trip unit handles overloads and short-circuits without external power, so it stays self-contained on the bus. Rated interrupting capacity drops with system voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. Current rating holds flat at 125 A from 40 °C to 50 °C, then derates to 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C.
The 3VA1112-3GF46-0AA0 measures 130 mm high, 101.6 mm wide, and 70 mm deep — a 4-pole MCCB that fits standard SENTRON mounting footprints. If your BOM calls for those functions, you need a different 3VA variant with the aux/COM slot populated.