It protects a single outgoing circuit (1P + Ns) against both overload/short-circuit and earth leakage. The 77.5 mm depth fits enclosures with typical back-panel clearance. Rated for TN earthing systems per IEC 61009-1 and IEC 61009-2-2, the RCBO is designed for AC networks at 50 Hz. The thermal-magnetic trip unit combines a bimetal strip for overload protection and a solenoid for short-circuit response. Limitation class 3 means it restricts let-through energy under fault conditions, reducing stress on downstream wiring and loads.
Screw-clamp terminals accept rigid conductors up to 25 mm² on the top (line) side and 16 mm² on the bottom (load) side. Flexible conductors are limited to 16 mm² top and 10 mm² bottom. Strip lengths are 14 mm for the top and 13 mm for the bottom — maintaining these prevents whiskers under the clamp that could compromise the connection. Rated for 5000 electrical cycles and 20000 mechanical cycles.
