This 30 Minute Fire Rated Letter Box Plate is fitted with intumescent liner and perfectly suitable for installing into fire rated doors without compromising the door’s integrity. Designed to be fitted horizontal or vertical orientation. Totally fire rated for 30 minutes and fitted with integral sound dampening bumpers. The intumescent material swells to seal the letter opening in the event of a fire. Tested in accordance with BS 476-20/22. External dimensions (HxW): 10" letter plate: 70x272mm

Brand Name	Safelincs Ltd
Colour	Silver
Material	Aluminium
Certifications Met	BS 476-20/22, BS EN 1634-1, BS 476 Pt 31/1: 1983, BS EN ISO 140-3:1995, BS EN 13724 Clause 6.6.5
Aperture height	37mm
Aperture width	272mm
Fire rating	FD30
Letter plate type	Intumescent
Location	Internal
Maximum door thickness	80mm
Minimum door thickness	40mm
Product code	5055525230772