Acoustic fire and smoke rated letterbox. Designed for Timber and Composite Doors; Conforms to the requirement of BS EN 13724:2002 80-degree flap means flaps won‘t snap off. Two faceplate height options: Standard 76mm or Slimline 68mm. Available to suit different mid-rail and panel thicknesses. Detachable location Screws on rear plate for mass production uses. Fully Sprung loaded Individually boxed for additional protection. Lifetime tested to 50,000 cycles. All finishes salt spray tested to 480 hours(BS EN 1670) Full weather sealing to provide a draft free environment. Fire Resistant version (with intumescent strip): 60 minute Warrington Fire Test report (WF Report No136789) 60 minute within a section of timber based door leaf Tested to BS 476-22: 1987 Fire Tests on building materials and structures.
Specification Details for NOR400 Acoustic Letterbox (Mailboxes)
Please note that these product properties are not a replacement for the manufacturer's literature and it is always recommended that Norsound is consulted before specifying.
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