The breaker includes phase failure detection, so a lost phase won't let the motor single-phase and burn out. Breaking capacity is 100 kA at 400 VAC and 500 VAC, and 10 kA at 690 VAC. For installations where the available fault current exceeds the breaker's interrupting rating, the spec calls for gL/gG backup fuses: 25 A at 400 V or 500 V, 20 A at 690 V.
Clearance distances: 50 mm above and below, 30 mm to the sides, zero forwards or backwards. That's the breathing room for arc flash and heat dissipation — don't crowd it. Main circuit connection uses ring cable lugs with M3 screws on the main contacts. Dimensions are 97 mm deep by 97 mm high by 45 mm wide.