Intumescent Fire Rated Letter Plates

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  • Intumescent fire and smoke rated telescopic sleeved letterboxes.

  • 30 Minute FD30 rated and 60 minute FD60 rated options available.

  • Sleeved design with internal brush seals and intumescent liners.

  • 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.