The breaker is rated for motor power up to 7.5 kW at 230 V AC. Breaking capacity is a key specification for this class: the unit delivers 50 kA at 400 V AC and 240 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC.
For audit purposes, the screw-type terminals on the main circuit accept 2× (1 to 25 mm²) or 1× (1 to 35 mm²) solid or stranded copper, requiring a Pozidriv size 2 screwdriver tip with a 5 to 6 mm shaft diameter.
Protection Features and Backup Fusing
The breaker includes phase failure detection, which is critical for preventing single-phasing damage on three-phase motor loads. It does not include ground fault detection. For installations where the prospective short-circuit current exceeds the breaker's rated breaking capacity, the datasheet specifies required backup fuses: at 400 V, a gG 125 A fuse; at 500 V, gG 100 A; at 690 V, gG 80 A. At 240 V, no backup fuse is required.