Phoenix Contact 1423973 A connector distributor offers a product family called QPD, which can be connected using either IDC connection or a quick fastening method known as QUICKON. The connectors come in various sizes including 3+PE, ranging from 1 mm2 to 2.5 mm2, and are rated for high currents of up to 20 A at 690 V, with a color that is black and without a QUICKON nut. Furthermore, the connectors have a coding profile that identifies them as part of this specific product family.