Interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — solid for downstream fault isolation in distribution panels.
The 20 A rating holds flat from 40 °C through 50 °C — no derating needed in a warm enclosure — then steps down to 19.2 A at 55 °C and 18 A at 70 °C. That simplifies BOM traceability but locks the rating; if the load changes, you swap the whole breaker, not the trip pack. That saves an add-on module slot and gives the PLC a direct fault signal without extra wiring.
130 mm height and 70 mm depth fit standard enclosures. IP40 on the front suitable for indoor switchgear. That covers most plant-floor environments short of freezer tunnels or oven-side locations.