Phoenix Contact 1999026 The PCB headers have a nominal cross-section of 16 mm2 and are colored green. They can handle a nominal current of 76 A when used alone or 41 A with a PC 6 plug. The rated voltage is 1000 V for the III/2 rating, with a contact surface made of Ag and pin connections. Four potentials are available in a linear layout on the board, each with four solder pins that can accommodate three individual solder pins per potential. These headers utilize a COMBICON PC 16 plug-in system and have a standard alignment for connectors.