At 415 V it's still rated for 242 kA, and it holds 187 kA at 500 V. Only at 690 V does it drop to 3.7 kA — that's the voltage limit for this frame's arc extinction. The ETU340 electronic trip unit provides adjustable protection curves.
Power loss is 1.6 W maximum at rated load. That's low enough that you don't need to derate adjacent devices in a crowded panel, but it's still real heat — keep ventilation slots clear.
What it doesn't have (and why that's fine)
This is a bare-bones line-protection breaker — you add accessories externally if needed. The ETU340 handles the adjustable protection curves; everything else is a field-installable option.