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Intumescent Fire Cages

Product 32


Intumescent fire cage with the same properties as a downlighter cover.

£0.00 ex. Vat


Fire Cages

Fire-rated, metal intumescent fire cages for lights and downlighters. Intumescent fire cages create a fire seal to maintain integrity as well as fire rating of a ceiling. Easily fitted from above or below in plasterboard or suspended ceilings. In the event of a fire, the intumescent expands to form a fire barrier, preventing fires from spreading rapidly.

According to fire statistics, overheated light fittings and electrical faults are a leading cause of fire destruction to buildings and homes. With buildings left unprotected, fire and smoke rapidly spread and destroy rooms and properties.

Installing passive fire products for electrical services provides multiple benefits including

  • Compartmentalising fire
  • Preventing fire spread
  • Preserving building structures.

The intumescent material will expand to create a fire barrier, preventing fires from spreading. This allows occupants to safely evacuate a building and for fire rescue services to extinguish flames before they become severe.

Manufactured in a range of sizes to fit over various electrical fittings. An acoustic version is also available.

Tested to BS476 Parts 22, 23 and 23 (Clause 5) (1987), achieving 240minutes integrity.

Our electrical and plumbing products meet IET wiring regulations as well as Document B & E of Building Regulations tested to European and British Standards. Browse our full range of electrical and plumbing products.


– Maintains the fire rating of plasterboard or suspended ceilings rated up to 4 hours
– Available in standard and acoustic forms, preventing sound transfer from different floors of a building up to 63dB
– Can be made to accommodate downlighters alone, or downlighter/transformer combos
– Downlighter cages are a sturdier option, allowing for insulation to be laid over the top after they are fixed in place – ideal for lofts
– Can be used to improve the fire rating of ceiling-mounted speakers as well as downlighters
– The range also contains downlighter adaptors which can convert existing light fittings to fire resistant, low-energy units, saving up to 40W per light whilst providing 66 minutes of fire protection
– Easily installed in 5 minutes or less. Custom sizes made to order.

Application Instructions

Lead the cable from the transformer through the pre-cut downlight aperture in the ceiling
Pierce the cable entry point in the top of the cover with a sharp object, creating an opening large enough to suit the cable size
Feed sufficient cable through the opening for the connection
Compress the cover and pass it through the aperture in the ceiling
Open out the cover once inside the ceiling, away from the light fitting
Using the two supplied pins, fasten opposite inner flanges of the cover to the plasterboard
Insert the light fitting and fasten the closing mechanism over the inner flaps of the downlighter cover to seal the opening
Downlighter covers require a minimum of 40mm horizontal clearance and 15mm vertical clearance
Cages are rigid and require no clearance, meaning that insulation can be packed around them as long as it does not cover the ventilation holes

NB: Downlighter cages cannot be compressed to fit through the light fitting aperture from below and must therefore be positioned from above

Order References / Sizes



The fire cage has the same use as a downlighter cover. There are two types available: –


STANDARD RANGE (for standard light fittings only)

TRANSFORMER RANGE  (for light fittings including transformers)


The cage can only be fitted from above on fixed ceilings, and from above and below on suspended ceilings


                          Fire Cage (Rigid)                                                      

           LENGTH          WIDTH           HEIGHT                          

FC 1    150mm          150mm          120mm             

FC 2    150mm          150mm          170mm             

FC 3    200mm          200mm          120mm            

FC 4    200mm          200mm          170mm            

FC 5    260mm          260mm          120mm            

FC 6    260mm          260mm          170mm            

FC 7    260mm          260mm          230mm            

FC 8    300mm          300mm          120mm             

FC 9    300mm          300mm          230mm             

FC 10  350mm          350mm          175mm            



 Fire Cage (Rigid)

               LENGTH          WIDTH           HEIGHT

FC1R       325mm          150mm          120m

FC2R       325mm          150mm          170mm

FC3R       375mm          200mm          120mm

FC4R       375mm          200mm          170mm

FC5R       435mm          260mm          120mm

FC6R       435mm          260mm          170mm

FC7R       435mm          260mm          230mm

FC8R       475mm          300mm          120mm

FC9R       475mm          300mm          230mm

FC10R     525mm          350mm          175mm



                     LENGTH          WIDTH           HEIGHT                               

FC 1/AC          190mm          190mm          140mm         

FC 2/AC          190mm          190mm          190mm         

FC 3/AC          240mm          240mm          140mm         

FC 4/AC          240mm          240mm          190mm          

FC 5/AC          300mm          300mm          140mm         

FC 6/AC          300mm          300mm          190mm         

FC 7/AC          300mm          300mm          250mm         

FC 8/AC          340mm          340mm          140mm         

FC 9/AC          340mm          340mm          250mm          

FC 10/AC       390mm          390mm          195mm          



                    LENGTH          WIDTH         HEIGHT

 FC1R/AC        365mm          190mm          140mm

 FC2R/AC        365mm          190mm          190mm

 FC3R/AC        415mm          240mm          140mm

FC4R/AC        415mm          240mm          190mm

 FC5R/AC        475mm          300mm          140mm

 FC6R/AC        475mm          300mm          190mm

 FC7R/AC        475mm          300mm          250mm

 FC8R/AC        515mm          340mm          140mm

FC9R/AC        515mm          340mm          250mm

FC10R/AC      565mm          390mm          195mm