It's not sized for motor starting; that wants a C or D curve. Either way, it clears a bolted fault without venting or welding contacts — that's the job. Temperature derating is built into the spec: 10 A at 30 °C ambient drops to 8.2 A at 70 °C. If this RCBO lives in a hot enclosure next to contactors or drives, use the 70 °C figure for the continuous load — not the 30 °C number. The operating range (-40 to 70 °C) covers outdoor cabinets in cold climates and warm panels alike.
Two modular-width units (36 mm wide) snap onto standard DIN rail. Depth is 72 mm; installation depth 70 mm. Mount in any position — no derating for orientation. Supply can land top or bottom, which saves a few minutes if you're retrofitting into a crowded enclosure and the busbar comes in from the bottom. IP20 with conductors connected and the distribution board installed — that's the usual for a panelboard. Not for washdown or outdoor exposed mounting without an enclosure.