The interrupting ratings are the headline: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V.
That 105 mm width is the standard 3-pole SENTRON 3VA2 footprint — it drops into the same mounting cutout as other 3VA2 160 A frames.
Built-in undervoltage release and auxiliary switches
This MCCB ships with an integrated undervoltage release (UVR) — the '6HN32' suffix encodes that. No communication function on this variant — it's a standalone breaker, not a 3VA2 with ETU or Modbus option.
