Middle Atlantic Preconfigured ERK Series Enclosures

Complete Solution For Network & Audio/Video Enclosures

Low Price Guarantee


What's special about these enclosures?

  • Provides users with a complete solution for efficiently installing, protecting and managing a network right out of the box
  • Full welded construction with 16-gauge solid steel sides ensures product stability and longevity
  • Durable steel construction provides 2,500 lbs. of weight capacity so you can safely store both heavy and delicate equipment
  • Click for More Features

Developing a server or media room can easily become a complicated and frustrating process for beginner and veteran installers alike. To make life easier for the everyday installer, Middle Atlantic, a trusted name in media and network enclosures, developed a new line of already configured ERK enclosures. These enclosures provide installers with the essentials for getting started right out of the box, but also leave plenty of room for growth and customization to meet specific needs.


QMA-ERK-3525-AV 35 22" W x 25" D x 65.375" H 260 lbs
QMA-ERK-4025-AV 40 22" W x 25" D x 74.125" H 275 lbs
QMA-ERK-4425-AV 44 22" W x 25" D x 81.125" H 290 lbs



QMA-ERK-Z4 Seimic Brackets for ERK Series Enclosures 1.65 lbs
  • Grounding/Bonding studs are provided to help you electrically ground and bond equipment, per NEBS and NEC standards
  • UL listed in the US and Canada
  • Seismic certified for protecting 650 lbs. of essential equipment when used in conjunction with ERK-Z4 brackets- UBC 1997 & CBC 1998 Zone 4; IBC 2000, IBC 2003, ASCE 7 - 02, NFPA 5000 Seismic Use Group III
  • cULus listed (enclosures)- File number E173107
  • cULus listed (fan and door assembly)- File number E252615
  • UL listed (power strips)- File number E194316
  • EIA/TIA Compliant
  • RoHS Compliant
  • Made in the U.S.A.Made in the USA


ERK Enclosure Includes:

  • Integrated fan top provides maximum air flow and helps move damaging  heat away from delicate components
  • 3-1/4" wide vertical lacer strip to assist in cable organization and management
  • (6) Horizontal lacer bars provide easy routing of cables and fibers coming off crowded servers or patch panels
  • Welded side panels with vent blockers help to control airflow and maximize cooling efficiency
  • Configurable rear door with bottom vent and solid locking front door, to provide increased air flow and servicing access while protecting expensive equipment from theft or unwanted tampering
  • (12) 8" Velcro® cable management straps for bundling and securing large or small groups of cables
  • 20 Amp power strip(s) to provide up to (20) outlets of reliable power
  • Leveling feet to match uneven flooring and ensure the stability of the enclosure
  • (100) 10-32 mounting hardware for installing and securing network components and equipment


  QMA-ERK-3525-AV QMA-ERK-4025-AV QMA-ERK-4425-AV
Overall Height 65.375" 74.125" 81.125"
Useable height 61.375" 70.125" 77.125"
Overall Depth 25.000" 25.000" 25.000"
Bottom Opening Depth 20.250" 20.250" 20.250"
Overall Width 22.000" 22.000" 22.000"
Useable Width 19.250" 19.250" 19.250"
Front Door 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel
Sides 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rear Panel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel
Top 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Bottom 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rack Rail (1-pair) 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel
Terminated 5-20P 5-20P 5-20P
Circuit 20 Amp 20 Amp 20 Amp
Outlets 10, 5-20R 10, 5-20R 10, 5-20R
Overall Length 37.75" 37.75" 37.75"
Qty 2 2 2
Fans 4-1/2" 4-1/2" 4-1/2"
Airflow 285 CFM Each 285 CFM Each 285 CFM Each
Qty 3 3 3

View Enclosure GUIDE Based on Venue & Application 








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