Cable protection duct, external corner 90°, with snap-on cover, duct base unperforated, the potential equalization of the cover takes place automatically when snapped on, accessories for potential equalization, two joint connectors LST...E3 per joint, must be ordered separately. for cable protection ducts: LLK...E3 / LUK...E3 Dimensions (approx. dimensions) H x W: 60 x 60 mm Inner leg length: 75 mm Material: stainless steel, material no. 1.4301