It is a motor-protection version with phase-failure detection built in, so it catches the unbalanced load condition that cooks windings before the thermal curve would trip. Three auxiliary switches (HQ type) are integrated for remote status feedback — no separate add-on block needed for basic signaling. Breaking capacity is 330 kA at 240 V and 242 kA at 415/440 V, tapering to 187 kA at 500 V and 52.5 kA at 690 V.
Above that it derates stepwise: 153.6 A at 55 °C, 150.4 A at 60 °C, 147.2 A at 65 °C, and 144 A at 70 °C. Maximum power loss is 75 W — that heat has to leave the enclosure, so factor it into the thermal budget.
If your application needs undervoltage or ground-fault protection, that requires a different variant or an add-on module.