A Series. Mounted mechanisms without frame IP 40 Silver contacts (AgN 90/10) Made of Polycarbonate Screw connecting 1.5-2.5mm2 HF Wide range 1 module. (4 units).A Series. Mounted mechanisms without frame IP 40 Silver contacts (AgN 90/10) Made of Polycarbonate Screw connecting 1.5-2.5mm2 HF Wide range 1 module. (4 units).