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22" Wide 54 Space Extra Tall Enclosure

Middle Atlantic - VMRK SERIES View Larger Image (in new window)

Middle Atlantic : VMRK SERIES

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The Middle Atlantic VMRK-Series fully welded construction provides a static load capacity of 10,000 lbs. and a UL Listed 2,500 lb. weight capacity. Top and bottom shall be 14-gauge steel, sides shall be 16-gauge steel. Rack shall have 11-gauge structural thickness where rackrail brackets are welded to sides, internal braces shall be made from laser cut 1/8” thick structural steel, rackrail shall be 11-gauge steel with tapped 10-32 holes in universal EIA spacing. Rack shall include a locking, latching rear door. Rackrail shall have numbered spaces. VMRK-54 shall be of fully welded construction, finished in a durable black powder coat. The VMRK-54 shall have a solid latching rear door. Rack shall have removable top and bottom split rear knockout panels with 1/2”, 3/4”, 1” and 1-1/2” electrical knockouts and BNC knockouts for UHF/VHF antennae in the top only. Grounding and bonding stud shall be 1/4-20 threaded, installed in base of enclosure.

This VMRK series enclosures shall satisfy 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 for use in areas of high seismicity, Seismic Use Group III, Zone 4 or Seismic Design Category (SDC) “D” with lateral force requirements for protecting 640 lbs. 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 MRK-Z4 seismic floor anchor bracket. Rack shall be UL Listed in the US and Canada. VMRK shall be GREENGUARD Indoor Air Quality Certified for Children and Schools. VMRK shall be RoHS EU Directive 2002 / 95 / EC compliant. VMRK shall be manufactured by an ISO 9001 and ISO 14001 registered company.

100-5/8" OD height, 54 useable spaces.
31" and 36" OD depth.
1/2", 3/4", 1" and 1-1/2" electrical knockouts found on removable split rear plates, Broadcast standard 22" width.
2 pairs threaded 10-32 "Z-RAIL" standard.
Laser-cut 1/8" thick internal steel braces for strength.
14-gauge steel tops & bottoms, 16-gauge seamless steel sides.
Configurable open top accepts a number of top options.
Keylocked solid rear door standard.
Finished in durable textured black powder coat.
Optional horizontally split side panels available.
Grounding and bonding stud installed in base.
UL Listed in the US and Canada.
Fully welded construction provides
Static load capacity 10,000 lbs.
UL Listed load capacity 2,500 lbs.
Seismic Certified load capacity 640 lbs.
Seismic certified to the following codes and standards 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 for use in areas of high seismicity – Zone 4 or Seismic Design Category (SDC) "D". These are designed for Mission Critical and/or High-Importance Installations in locations with the highest level of seismicity and top floor or rooftop installations including those within UBC and CBC Essential facilities or IBC, ASCE 7, and NFPA 5000 Seismic Use Group III facilities. For all codes, the Importance factor (Ip) is 1.5. Seismic Certified load capacity of 640 lbs. when used with MRK-Z4 seismic floor anchor brackets.
top knockout plate additionally includes UHF/VHF antenna knockouts.


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Prices and specifications subject to change without notice.