Its breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 76 kA at 500 V, and 3.8 kA at 690 V — so at standard 400 V distribution it clears faults up to 121 kA without cascading upstream. That SCCR headroom matters when you're coordinating a panel for a shutdown window: you want the main breaker to hold, not blow a hole in your selectivity study.
Trip unit and thermal performance
The ETU350 electronic trip unit offers adjustable long-time delay (tr) from 0.5 to 17 seconds and short-time delay (tsd) from 0.02 to 0.4 seconds, giving you flexibility for coordination with downstream breakers. Maximum power loss is 25.5 W, so ventilation planning is straightforward.