58.504.9255.0 is an Earth terminal WT 4 E PE, a multi-tier ground DIN rail terminal block designed for secure screw connection mounting on TS 35 top hat rails. The terminal block features a nominal cross section of 4 mm², a compact width of 6 mm, and a two-level design with 2 clamp positions per level, providing flexible grounding configurations. The insulating housing is constructed from PA666 thermoplastic material with V0 inflammability rating per UL94, and it operates at a rated voltage of 800 V with a rated impulse voltage of 8 kV. The terminal accommodates solid conductors from 0.14 mm² to 6 mm² and fine stranded conductors up to 6 mm², with a maximum flexible stranded conductor cross section of 4 mm² when using cable end sleeves, requiring a torque of 0.5 Nm for conductor mounting. This terminal block is ideal for industrial control panels, power distribution systems, and electrical installations requiring reliable grounding connections in harsh environments with pollution degree 3.