The 56.704.9155.0, also known as the WKFN 4 D2/2/SL/35, is a ground terminal block designed for secure earth connections on a TS 35 DIN rail. It utilizes a tension clamp connection with four clamp positions and has a nominal cross section of 4 mm². This terminal block supports solid wire cross-sections from 0.13 mm² to 6 mm² and fine stranded wires from 0.13 mm² to 4 mm². The housing is made from PA666 thermoplastic with a V0 flammability rating, ensuring high safety standards. With its compact 6 mm width and distinct green/yellow coloring, this block is ideal for grounding applications in various electrical installations where space and clear identification are critical.