It integrates both earth-leakage detection at 30 mA sensitivity and thermal-magnetic overcurrent protection rated at 40 A, all within a single 18 mm wide module that clips onto a DIN rail.
Neutral is on the left, line on the right. Tunnel-type terminals accept 1–16 mm² rigid or 1–10 mm² flexible conductors (with or without ferrules); strip length is 13 mm and tightening torque is 2 N·m. The toggle actuator provides local ON/OFF indication and the unit is padlockable with a 4 mm Ø padlock for lockout/tagout. The tropicalisation class 2 means it's treated against humidity and fungus, and the 95 % RH at 55 °C rating confirms it handles warm, damp environments typical of industrial enclosures.