The 86 mm depth and 105 mm width fit standard MCCB panel footprints — it occupies the same 3-pole slot as other 3VA2 frame breakers, so a panel laid out for a 160 A frame accepts this unit without re-drilling the backplate or moving busbars.
Where it goes in the panel
The ETU340 electronic trip communicates no status over a bus — it's a standalone device, so fault pickup requires a visual check of the mechanical trip indicator (which this unit does not have) or a downstream ammeter.
