Niedax manufactures cable trays, ladders, trunking and support systems at Linz am Rhein, including a dedicated Funktionserhalt range whose cable support assemblies are classified E30 to E90 in accordance with DIN 4102-12 — among them the stainless steel RLC E3 tray and E3 suspension systems. The classified system catalogue documents the tested tray, support and fixing combinations required for German circuit-integrity installations.