Single-module width (18 mm) on the DIN rail; any mounting position works. Terminal accepts 0.75 to 25 mm² solid or stranded, torqued to 2.5–3 N·m.
At 50 A, this is a main or feeder breaker for a sub-panel, not a final subcircuit. Rated voltage of 400 V AC covers 3-phase line-to-line in most European TN systems; maximum operating voltage with multi-phase operation is 440 V. Ambient temperature range of -25 to +45 °C with storage down to -40 °C — derate if the panel interior runs hot.
Snap-on DIN rail mount, 18 mm wide (1 module). Sealable for lockout/tagout compliance. Halogen-free and silicon-free — suitable for environments sensitive to outgassing, like clean rooms or sealed enclosures.