At 415 V and 440 V it still interrupts 187 kA, dropping to 121 kA at 500 V and 4.5 kA at 690 V, so the SCCR planning has to track the actual system voltage.
The ETU320 release is a basic electronic trip unit (no communication, no ground-fault monitoring) suited for standard overload and short-circuit protection on feeders or large branch circuits. The 3-pole frame handles three-phase loads; the IP40 front protection means it lives in a clean panel, not a washdown zone.
Panel integration
The 86 mm depth fits typical distribution boards; leave clearance for cable entry and the ETU320 interface.
