Phoenix Contact 1955989 The PCB headers have a nominal cross-sectional area of 2.5mm², featuring a black color with a rated voltage of 320V and a maximum current capacity of 12A. The contact surface is tin-plated, using a pin connection type, with four potentials, one row, four positions, and connections. They come in a standard linear pinning layout, suitable for THR soldering or wave soldering techniques.