External grille for ventilation. With fixed, rain-repellent weather protection slats. With protective grille and installation frame on the back.Article: MLZ 40, Air direction: Ventilation, Max. flow speed: 4 m/s, Installation: outside, Installation location: wall, Material: galvanized sheet steel, Weight: 3.595 kg, Weight with packaging: 3.895 kg, Suitable for nominal width: 400 mm, Free cross-section: 997 cm2, Width: 457 mm, Height: 430 mm, Depth: 52 mm, Width with packaging: 480 mm, Height with packaging: 480 mm, Depth with packaging: 60 mm, Suitable for box fans: no, Suitable for roof fans: yes, Suitable for pipe fans: yes, Suitable for heat recovery systems: no, Suitable for wall-mounted fans: no, Suitable for wall-mounted fans: yes, Suitable for residential fans: no, Suitable for centrifugal fans: no, Suitable for circulation fans: no
| Property | Value |
| Material: | Steel, galvanized |
| Front width: | 457 mm |
| Front height: | 430 mm |
