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The Middle Atlantic WRK-40-27LRD 19" (482.6mm) Gangable Enclosure satisfies the 2007 & 2010 CBC; 2006, 2009 & 2012 IBC; ASCE 7-05 (2005 Edition) & ASCE 7-10 (2010 Edition) and the 2006 & 2009 editions of NFPA 5000 standards for use in areas of high seismicity. It is certified Seismic Use Group III, Zone 4 or Seismic Design Category (SDC) “D” with lateral force requirements for protecting 900 lb of essential equipment in locations with the highest level of seismicity and top floor or rooftop installations with an Importance factor (Ip) of 1.5 when used with WRK-Z4 seismic floor anchor bracket.
24.25" (615.95mm) OD width and 32.63" (828.80mm) OD depth available
0.5" (12.7mm), 0.75" (19.05mm), 1" (25.4mm), and 1.5" (38.1mm) electrical knockouts on split rear plates top and bottom, easily removable for cable pass-through, top plates additionally include UHF / VHF knockouts
2 extra-wide pairs of 11-gauge 10 to 32-threaded rack rail with numbered rack space increments
Optional solid, fully vented, plexi, and vented plexi doors
Open top with configurable top panel options
Durable, black-textured, powder-coat finish
Seismic certified (when used with WRK-Z4 option) with an Ip value of 1.5