The Helios SG 355 is a protective grille designed to cover the outlet side of fans, ensuring safety by preventing contact with moving parts. With a diameter of 355 mm, it is engineered to match standard fan and flange pipe sizes in compliance with DIN 24155 (page 2).
The grille is powder-coated in a silver metallic finish for durability and corrosion resistance, while sizes from Ø800 mm are provided in a galvanised version. It is manufactured to meet DIN EN ISO 13857 safety requirements and comes with mounting clips for quick and secure installation. The SG 355 is an ideal safety accessory for commercial and industrial ventilation systems.