Middle Atlantic ERK Stand-Alone Enclosures

Design The Perfect Enclosure For Your Needs

QMA-ERK-1820
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QMA-ERK-10FT-550CFM
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We Guarantee to Have the Best Price

What's special about these configurable enclosures?

  • High quality with a large range of customizable options and accessories, for creating an unique enclosure tailored around meeting your specifications and needs
  • Fully welded construction is reinforced with 1/8" structural steel internal braces to provide the highest quality in structural support, even under full loads
  • Grounding and bonding studs are preinstalled into the base to help you electrically ground and bond equipment, per NEBS and NEC standards
  • Click for More Features
RoHS CompliantUL

Middle Atlantic's new line of ERK Stand-Alone Enclosures provide you with several different options when it comes to size, doors, casters, ventilation, rails, and cooling. For users who need a quick answer to their needs, with all the essentials needed for getting started, the ERK series also provides a line of ready to use preconfigured enclosures.

Middle Atlantic ERK Enclosures with Rear Door
Part #RuHeightWidthDepthColorPrice
QMA-ERK-18201835.625"22"20"Black
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QMA-ERK-18251835.625"22"25"Black
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QMA-ERK-21202140.875"22"20"Black
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QMA-ERK-21252140.875"22"25"Black
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QMA-ERK-27202751.375"22"20"Black
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QMA-ERK-27252751.375"22"25"Black
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QMA-ERK-35203565.375"22"20"Black
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QMA-ERK-35253565.375"22"25"Black
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QMA-ERK-40204074.125"22"20"Black
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QMA-ERK-40254074.125"22"25"Black
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QMA-ERK-44204481.125"22"20"Black
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QMA-ERK-44254481.125"22"25"Black
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Middle Atlantic ERK Enclosures without Rear Door
Part #RuHeightWidthDepthColorPrice
QMA-ERK-1820LRD1835.625"22"20"Black
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QMA-ERK-1825LRD1835.625"22"25"Black
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QMA-ERK-2120LRD2140.875"22"20"Black
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QMA-ERK-2125LRD2140.875"22"25"Black
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QMA-ERK-2720LRD2751.375"22"20"Black
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QMA-ERK-2725LRD2751.375"22"25"Black
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QMA-ERK-3520LRD3565.375"22"20"Black
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QMA-ERK-3525LRD3565.375"22"25"Black
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QMA-ERK-4020LRD4074.125"22"20"Black
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QMA-ERK-4025LRD4074.125"22"25"Black
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QMA-ERK-4420LRD4481.125"22"20"Black
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QMA-ERK-4425LRD4481.125"22"25"Black
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ERK Tops with Fan Options
Part ## Of Fans Fan ControllerFree Air CfmFitsColorPrice
QMA-ERK-10FT-550CFMOne 10" FanNot Included550ERK 35,40, 44 RU ModelsBlack
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QMA-ERK-10FT-FCOne 10" FanIncluded550ERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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QMA-ERK-6FT-440CFMTwo 6" FansNot Included440ERK 35,40, 44 RU ModelsBlack
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QMA-ERK-4FT-285CFMThree 4.5" FansNot Included285ERK 35,40, 44 RU ModelsBlack
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QMA-ERK-4QFT-FCThree 4.5" Quiet FansIncluded150ERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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ERK Configurable Tops
Part #DescriptionFitsColorPrice
QMA-ERK-10FTERK Top With Cutout For One 10" FanERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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QMA-ERK-4FTERK Top With Cutout ForThree 4.5" FansERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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QMA-ERK-DTERK Top With Duct Cool AdapterERK 35,40, 44 RU ModelsBlack
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QMA-ERK-STERK Solid TopERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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QMA-ERK-VTERK Slot Pattern Vented TopERK 35,40, 44 RU ModelsBlack, Granite Gray, Light Gray
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ERK ACCESSORIES
Part #DescriptionFitsFeaturesPrice
MA-ERK-RR18ERK 18RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)18 RU Enclosures11-Gauge, 10-32 Threaded
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MA-ERK-RR21ERK 21RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)21 RU Enclosures11-Gauge, 10-32 Threaded
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MA-ERK-RR27ERK 27RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)27 RU Enclosures11-Gauge, 10-32 Threaded
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MA-ERK-RR35ERK 35RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)35 RU Enclosures11-Gauge, 10-32 Threaded
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MA-ERK-RR40ERK 40RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)40 RU Enclosures11-Gauge, 10-32 Threaded
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MA-ERK-RR44ERK 44RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware)44 RU Enclosures11-Gauge, 10-32 Threaded
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QMA-ERK-VRD-18ERK 18RU Rear Vented Door Option18 RU EnclosuresProvides 64% Open Area
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QMA-ERK-VRD-21ERK 21RU Rear Vented Door Option21 RU EnclosuresProvides 64% Open Area
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QMA-ERK-VRD-27ERK 27RU Rear Vented Door Option27 RU EnclosuresProvides 64% Open Area
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QMA-ERK-VRD-35ERK 35RU Rear Vented Door Option35 RU EnclosuresProvides 64% Open Area
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QMA-ERK-VRD-40ERK 40RU Rear Vented Door Option40 RU EnclosuresProvides 64% Open Area
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QMA-ERK-VRD-44ERK 44RU Rear Vented Door Option44 RU EnclosuresProvides 64% Open Area
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QMA-ERK-Z4ERK Series Seismic BracketsERK EnclosuresSeismic Certified Mounting
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QMA-CBS-ERK-20ERK Commercial Grade Caster Base20" Deep Enclosures1,300 lbs. Weight Capacity
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QMA-CBS-ERK-20RERK Fine Floor Caster Base20" Deep Enclosures700 lbs. Weight Capacity
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QMA-CBS-ERK-25ERK Commercial Grade Caster Base25" Deep Enclosures1,300 lbs. Weight Capacity
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QMA-CBS-ERK-25RERK Fine Floor Caster Base25" Deep Enclosures700 lbs. Weight Capacity
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  • Finished in a durable black textured powder coat to protect your enclosure and keep it looking stylish for years to come
  • Durable steel construction withstands equipment loads of up to 2,500 lbs
  • One pair of 10-32 tapped, front-mounted and fully adjustable rails are included for safely securing media and network components, with optional rear mounting rails available
  • Provides 1/2", 3/4", 1" and 1-1/2" electrical knockouts on removable split rear plates, with additional UHF/VHF antenna knockouts on the top plate
  • Extra large opening on the bottom for cable entry and easy routing
  • 18, 21 and 27RU enclosures come with a solid preconfigured top, with two 4.5" fan knockouts for easy cooling installation and options
  • Large range of solid, vented or preconfigured fan tops available for 35, 40 and 44RU enclosures
  • 35, 40 and 44RU enclosures provide laser cut knockouts in side panels for easy ganging and cable pass-through
  • Commercial grade caster bases are equipped with 3" diameter swivel wheels which have a weight capacity of 1,300 lbs
  • New, fine floor caster bases are available with 3" diameter swivel wheels. Made from Dynatread TPR, these casters protect against damaging decorative flooring, and have a weight capacity of 700 lbs
  • 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
  • EIA/TIA Compliant
  • RoHS Compliant
  • Made in the U.S.A. Made in the USA

Middle Atlantic ERK Drawing Dimensions (PDF) PDF

 

  QMA-ERK-1820 QMA-ERK-1825 QMA-ERK-2120 QMA-ERK-2125 QMA-ERK-2720 QMA-ERK-2725
DIMENSIONS
Overall Height 36.625" 36.625" 40.875" 40.875" 51.375" 51.375"
Useable height 31.625" 31.625" 36.875" 36.875" 47.375" 47.375"
Overall Depth 20.000" 25.000" 20.000" 25.000" 20.000" 25.000"
Bottom Opening Depth 15.250" 20.250" 15.250" 20.250" 15.250" 20.250"
Overall Width 22.000" 22.000" 22.000" 22.000" 22.000" 22.000"
Useable Width 19.250" 19.250" 19.250" 19.250" 19.250" 19.250"
MATERIAL
Sides 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rear Panel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel
Top 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Bottom 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rack Rail (1-pair) 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel

 

  QMA-ERK-3520 QMA-ERK-3525 QMA-ERK-4020 QMA-ERK-4025 QMA-ERK-4420 QMA-ERK-4425
DIMENSIONS
Overall Height 65.375" 65.375" 74.125" 74.125" 81.125" 81.125"
Useable height 61.375" 61.375" 70.125" 70.125" 77.125" 77.125"
Overall Depth 20.000" 25.000" 20.000" 25.000" 20.000" 25.000"
Bottom Opening Depth 15.250" 20.250" 15.250" 20.250" 15.250" 20.250"
Overall Width 22.000" 22.000" 22.000" 22.000" 22.000" 22.000"
Useable Width 19.250" 19.250" 19.250" 19.250" 19.250" 19.250"
MATERIAL
Sides 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rear Panel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel 18-Gauge Steel
Top 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Bottom 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel 16-Gauge Steel
Rack Rail (1-pair) 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel 11-Gauge Steel

 

FANS
Size 4.5" 4.5" Quiet 6" 10"
Depth 1.5" 1.5" 1.5" 3.5"
dB Rating 39 dBA <30 dBA 49 dBA 49 dBA
CFM 95 50 220 550

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