To feed through power, signal, and data is the classical requirement in electrical engineering and panel building. The insulating material, the connection system and the design of the terminal blocks are the differentiating features. A feed-through terminal block is suitable for joining and/or connecting one or more conductors. They could have one or more connection levels that are on the same potential or insulated against one another. Weidmuller WDK 4N is feed-through terminal, double-tier terminal, screw connection, 4 mm², 800 V, 32 A, dark beige,order no.is 1041900000.