Breaking capacity is 242 kA at 240 V, dropping to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 3.8 kA at 690 V.
ETU330 release and adjustability
The overcurrent release is an ETU330 electronic trip unit. Adjustable response time (tr) from 0.5 s to 17 s, giving the panel builder flexibility to coordinate with downstream breakers or motor starters.
That 105 mm width for a 3-pole 63 A frame is standard for the SENTRON 3VA platform — it fits existing panel cutouts and busbar spacing without rework. The 4 W loss is low enough that multiple breakers in a row won't drive internal cabinet temperature significantly.