The 3-pole construction with shunt trip (STL) and two auxiliary switches plus a trip alarm switch makes it ready for remote tripping and status feedback in automated lines.
Breaking capacity and derating
The interrupting capacity drops with system voltage: 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. Current rating holds flat at 80 A from 40 °C through 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. That thermal curve means no derating needed in a standard 40 °C enclosure; above that, the 74 A floor at 70 °C still covers most 70 A continuous loads.
Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard 3-pole MCCB footprint that fits most existing SENTRON or third-party distribution blocks.