The WRK series was designed with a wider footprint for mounting equipment with thicker cable bundles that would be difficult to fit in a basic rack
. It's ideal for multi-bay installations, or to insure more cooling airflow. The WRK series also offers seismic certification and open or removable sides.
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.