Phoenix Contact 3042861 A feed-through terminal block features a nominal voltage of 800 V and can handle a nominal current of up to 32 A, accommodating four connections through a spring-cage/plug-in connection method. The rated cross-sectional area is 4 mm2, with two levels of connections available - one using a smaller 0.08 mm2-6 mm2 cross section for the first level connection and mounted on an NS 35/7,5 or NS 35/15 mounting type, identified by its distinctive blue color.