It snaps onto a 35 mm DIN rail per DIN EN 60715 and terminates with screw-type terminals accepting 2x (0.5 to 2.5 mm²) solid or stranded conductors. Short-circuit breaking capacity hits 100 kA at both 240 V and 400 V, which puts it well into the high-fault-current territory common in industrial MCCs and distribution panels downstream of large transformers.
Panel footprint and clearances
No side clearance needed between units; 20 mm above and below for wiring access, zero forward or backward clearance required from the mounting surface. The screw-and-snap-on fastening lets you pre-assemble the rail outside the panel and clip the breaker on as a group.
For selective coordination upstream of a motor starter, the required backup fuse depends on the prospective fault voltage: at 400 V use a gL/gG 50 A fuse; at 500 V or 690 V step down to gL/gG 40 A. At 240 V no upstream fuse is required — the breaker's 100 kA SCCR stands alone.