It clips onto a DIN rail or chassis mount, occupies 6 x 9 mm pitches (54 mm wide), and is rated for 10 A at 30 °C with a C-curve trip characteristic. The integrated earth-leakage protection trips at 100 mA sensitivity, and the unit delivers a 10 kA Icn breaking capacity at 400/415 V AC on a 50/60 Hz network.
The 10 kA Icn at 400/415 V is the rated short-circuit breaking capacity under IEC 61009-1 — it tells you this RCBO can safely interrupt a fault current up to 10 kA without welding its contacts or failing catastrophically. That's standard for most commercial and light-industrial sub-distribution boards in TN earthing systems (the supported earthing type). The 100 mA earth-leakage sensitivity is a protection against fire risk rather than direct personal shock (that would be 30 mA or lower). It's appropriate for outgoing circuits feeding fixed equipment where nuisance tripping from cable capacitance or equipment leakage would be a problem at 30 mA. The thermal-magnetic trip unit handles overloads (thermal bimetal) and short-circuits (magnetic coil) in one package, so you get overcurrent and earth-fault protection in a single module — saves a DIN-rail position compared to separate MCB + RCCB.
This RCBO is an outgoer device — it sits downstream of the main switch or incomer, protecting a final sub-circuit. Clip it onto a DIN rail (35 mm profile) or a chassis plate; the 54 mm width (6 modules) fits standard distribution board cutouts. Strip 11 mm for the bottom connection, 14 mm for the top. Torque to 2.5 N.m at both ends.