On a 400 VAC line the interrupting rating drops to 53 kA; at 500 VAC it is still 12 kA, so the part covers most industrial service-entrance and feeder applications within its voltage class.
Current derating and thermal limits
At 55 °C it derates to 39 A, at 65 °C to 38 A, and at 70 °C to 37 A.
The breaker occupies a 76.2 mm wide by 130 mm tall by 70 mm deep footprint — three standard 25 mm DIN modules wide. The front face is IP40, so it is suited for enclosed distribution boards where the door is closed during normal operation. No undervoltage release, no shunt trip, no communication function, and no ground-fault monitoring are built in; this is a plain thermal-magnetic line-protection MCCB. If you need auxiliary contacts or remote tripping, you will add those as external accessories.