The triathlete among the boxes, fire protection, sound insulation, airtight, DIBt Z-19.21.2283, ETA-18/0628, Opposite installation and subsequent installation possible, Up to 5-fold combination tested, Lightweight walls: Fire resistance class up to EI120 / Fire resistance class EI30 to EI60 without insulation wool, Cross laminated timber wall: Fire resistance class up to EI90 Milling hole diameter: Ø 68 mm Suitable for panel thickness: 7-40 mm Max. conductor cross section: 2.5 mm² Pipe entry: 4x M20 Depth: 62 mm Accessories: per PU incl. 5x E105HF Mounting type: HW Box material: PP/TPE-S Halogen-free: yes Protection class (IP): IP30