Legrand expands its line of fire-classified floor boxes

By Healthcare Facilities Today
January 30, 2014

WEST HARTFORD, Conn. – Legrand has introduced seven Wiremold recessed and flush style floor boxes that have been evaluated, tested, and approved to meet and in most cases exceed UL Fire Classification requirements for a 2-hour floor rating. Available in both single and multiple-gang versions in steel and nonmetallic fabrications, they provide power, communication, and audio/video services into open spaces. These new boxes also accept existing cover plates and service fittings to present a more consistent and aesthetic finish throughout the building.

The family of Wiremold UL listed and fire-classified floor boxes includes:

· One-, two- and three-gang OmniBox™ steel floor boxes

· RFB2 multi-service steel recessed floor box

· RFB4 multi-service steel recessed floor box

· 880 MP nonmetallic rectangular floor box

· RatchetPro™ Series nonmetallic round floor box


Unlike conventional floor boxes, Wiremold fire-classified floor boxes have conduit stubs that extend downward, penetrating the steel decking into the space below. The stems of steel floor boxes contain intumescent fire-stop material that, when exposed to high temperatures, expands and effectively seals the penetration from flames and heat. Because nonmetallic floor boxes do not conduct heat, intumescent material located within the box itself is sufficient to maintain the fire rating.

When properly installed, fire classified floor boxes save time and money for general contractors and installers by eliminating the need for spraying or using other solutions to meet the building requirements. They also eliminate the guesswork for inspectors and provide reassurance for building owners and property managers by meeting or exceeding the UL Fire Classification Standards.

Wiremold fire-classified floor boxes provide multiple service and capacity options and can be installed 2 feet on center for increased accessibility to services. Dividers can be removed in several models for greater capacity and to provide multiple configuration options for multi-service installations. Covers incorporate TopGuard™ protection that prevents water, dirt and debris from entering power and communication compartments, thus meeting or exceeding UL scrub water exclusion requirements for tile, wood, polished concrete, terrazzo and carpet covered concrete floors.


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