What the ratings mean in a panel
Breaking capacity is F-class at 30 kA at 380/415 V AC — that means it can safely interrupt a fault current up to 30,000 A without welding contacts or rupturing the case. For most industrial distribution panels fed by a 500 kVA to 1000 kVA transformer, that gives you adequate SCCR headroom at the main lug or feeder position. The utilisation category is A, so it is not intended for frequent switching of motor loads under load — it is a distribution breaker, not a motor-circuit protector. The IP20 finger-safe terminals keep live parts out of reach, but the breaker itself is not sealed; mount it inside a panel with at least an IP54 enclosure if the room is dusty or wet.
The 3D protected poles description means all three poles are protected with the same TM-D trip unit — no neutral pole protection. Overvoltage category III suits fixed-installation distribution panels downstream of the main service entrance. Isolation suitability per EN/IEC 60947-2 is confirmed, so it can be used as a disconnecting means with a visible open gap when toggled off.