Phoenix Contact 1704643 The PCB headers have a nominal cross-sectional area of 16mm², are black in color, and can handle a maximum current of 76A when used separately or with the PC 6 plug. They have an Ag contact surface, use pin connections with two potentials, are mounted using wave soldering, and feature linear pinning. The headers are part of the COMBICON PC 16 plug-in system, with a pitch of 10.16mm, and come in various configurations such as PC 6-16/..-G1, packed in cardboard packaging.