It carries a 20 kA Icu breaking capacity at 440 V AC (50/60 Hz) per IEC 60947-2, and 85 kA at 220–240 V AC.
If your panel runs hotter — say 50 °C — you derate per the manufacturer's curve; the TM-D trip unit is thermal-magnetic, so the thermal element responds to ambient. The 4-pole configuration with all four poles protected (4t) means it switches and protects all phases and the neutral, common for three-phase distribution where the neutral is switched. Earth-leakage protection built in (no separate module needed) covers ground-fault detection on the load side. That's standard for a distribution MCCB in an unheated enclosure. The IP20 finger-safe terminals and IK07 impact resistance handle routine panel access without special guarding.
Mounts fixed to a backplate — no DIN rail adapter on this frame. Front-front connections (line and load both front-accessed) simplify busbar routing in a distribution board. The 140 mm width and 165 mm height fit standard MCCB cutouts; the 68 mm depth leaves room for rear cable exit. Connection pitch is 35 mm, matching common busbar spacing.