Screw-type terminals handle the main circuit; the auxiliary contact block switches 1 A at 24 V, 0.5 A at 230 V.
At 400 V AC the unit is rated for 50 kA breaking capacity, dropping to 25 kA at 500 V and 2 kA at 690 V. The 240 V AC rating is also 50 kA. For a panel targeting 400 V distribution, this breaker coordinates with upstream fuses or MCCB rated at or above 50 kA — the 25 kA at 400 V is the motor-protection rating, not the full AC rating. The auxiliary contact ratings (1 A at 24 V, 0.15 A at 60 V, 0.5 A at 230 V) are for the signal side; do not pull motor current through them.
Any mounting position is allowed. Main circuit terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire.