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Intumescent Fire Rated Letter Plates
- 31205
![Intumescent Fire and Smoke Rated Telescopic Sleeved Letterbox - 30 Minute FD30 Tested - 306mm x 70mm]()
- 31204
![Intumescent Fire and Smoke Rated Telescopic Sleeved Letterbox - 30 Minute FD30 Tested - 272mm x 70mm]()
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Intumescent fire and smoke rated telescopic sleeved letterboxes.
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30 Minute FD30 rated and 60 minute FD60 rated options available.
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Sleeved design with internal brush seals and intumescent liners.
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Fire tested to BS 476 part 22: 1987, 30 minute rated suitable for use of FD30 fire doors.
- Smoke tested to BS 476 Part 31/1: 1983.
- Acoustic tested to BS EN ISO 140-3:1995 Achieving 32dB Rw.
- Security tested to BS EN 13724 Clause 6.6.5.
