Phoenix Contact 1779501 The PCB headers have specific dimensions and specifications including a nominal cross-sectional area of 1.5 mm², black color, rated current of 8 A and voltage rating of up to 160 V at an I²R temperature coefficient of III/2. They feature a Sn contact surface with pin connections arranged in a linear layout, accommodating nine potentials across one row of nine positions with a pitch of 3.5 mm and soldered using either THR soldering or wave soldering techniques, and are part of the MCV 1.5 product range packaged in cardboard with no locking mechanism or additional mounting requirements.