, With fire resistance class EI90, Subsequent and opposite installation possible, The installation boxes meet the sound insulation requirements, Up to 5 boxes can be connected in series Design: 2-way Max. cable diameter: Ø 11.6 mm Milling hole diameter: 2 x Ø 74 mm Suitable for panel thickness: 25-40 mm Cable entry: 2 Max. conductor cross-section: 2.5 mm² Depth: 54 mm Mounting type: HW Box material: SAFE 90 Halogen-free: yes Protection class (IP): IP30