During a fire, the ceiling cavity in which loudspeakers are installed can allow flames to spread throughout a building. To prevent fire entering the cavity via the loudspeaker, the ceiling loudspeaker can be fitted with a steel fire dome. This optional fire dome is mounted on the loudspeaker assembly using four self-tapping screws supplied with the fire dome. The fire dome has knockout holes for two grommets (supplied) and two cable glands (PG 13). 4 2 Self tapping screws Rubber grommets Technical specifications Mechanical Dimensions (dia. x max. depth) 182 x 100 mm (7.2 x 3.9 in) This fire dome can only be used with the LBC 3099/41 Ceiling Loudspeaker. Weight 540 g (1.19 lb) Color Certifications and approvals Ordering information Flame red (RAL 3000) B15 DIN 4102‑8 Region Certification Europe CE Parts included Quantity 1 Components LBC 3082/00 Fire Dome LBC 3082/00 Fire Dome Metal fire dome for LBC 3099/41 ceiling loudspeaker, Flame red RAL 3000. Order number LBC 3082/00