For a packaging line running multiple motor starters and heater loads off one feeder, the ETU560 lets you coordinate selectively with downstream breakers so a single fault doesn't drop the whole machine. Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V. At 415 V — common for European three-phase distribution — 121 kA covers most industrial transformer ratings without needing a current-limiting upstream fuse. If your panel sits near ovens or in a non-conditioned enclosure, that derating curve tells you the real ampacity without guessing.
Trip unit and protection logic
That saves panel space and wiring compared to add-on ground-fault modules. For a line that tracks uptime and fault events, this avoids a separate monitoring relay. Three auxiliary switches (HQ type) are integrated for remote status indication — open/closed, tripped, and ground-fault alarm. No separate auxiliary contact block needed.
Keep it inside a locked panel, not on the machine surface.