The MicroLogic 4.1 electronic trip unit handles the curve shaping, and the earth-leakage sensitivity is adjustable across multiple thresholds from 30 mA to 5 A for class A and class AC faults. That means it can serve as the main disconnect and the ground-fault protector in a single DIN-rail footprint, saving a panel row.
Mount it horizontally or vertically flat on the backplate; the toggle handle stays accessible either way.
Mounts on a backplate — no DIN-rail adapter needed, though it occupies 9 module pitches (roughly 162 mm) of width. Front-connect terminals at both line and load sides accept Everlink lugs: 2.5 to 70 mm² fine-stranded copper, or 2.5 to 95 mm² rigid stranded aluminium or copper. The IP40 front face and IK07 impact rating mean it withstands accidental tool drops during commissioning. Connection pitch is 35 mm with spreaders, 27 mm without. The grey RAL 7016 finish is standard for the NSXm range — no special-order colour.