Breaking capacity is the headline here: 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. The ETU320 trip unit provides electronic overload and short-circuit protection with adjustable settings, though the exact adjustment ranges aren't listed here. No undervoltage release, no voltage trip, no communication module — this is a straightforward line-protection breaker for hardwired distribution.
Dimensions: 181 mm height, 105 mm width, 86 mm depth. That's the heat you need to vent in the enclosure design — for a 160 A breaker in a closed panel, factor that into the thermal budget alongside adjacent devices.