Rated breaking capacity hits 100 kA at 400 V, 500 V, and 690 V — that is full-rated short-circuit interruption without needing an upstream fuse for most industrial supply transformers. For a hot-strip mill auxiliary drive panel fed by a 2 MVA transformer with 50 kA prospective fault current, this breaker clears the fault without cascading to the main breaker, keeping the rest of the line online.
The 45 mm width fits a standard 8-module spacing; the 97 mm depth leaves clearance for wiring ducts in a 200 mm deep enclosure. Any mounting position is allowed, so it can be oriented horizontally in a shallow gland-plate layout.