Intumescent Letterbox

Intumescent Letterbox

60 minute fire rating
To retain the integrity of FD30 and FD60 fire resisting doors use these fire rated letter plates
Tested to BS476 Part 20/22 the letter plates we offer are visibly similar to common letter plates with hidden intumescent material, providing an easy way of retaining the lock and achieving fire protection
Designed to fit doors from 44mm to 54mm thick by means of an adjustable centre sleeve connecting inside to out
Excellent sealing and robust enough for applications such as hostels or student accommodation

Technical Details:
Size: 272 x 70mm
Aperture: 221 x 37mm
Suit door thickness 44-54mm