Middle Atlantic ERK Stand-Alone Enclosures

Design The Perfect Enclosure For Your Needs

Low Price Guarantee Scroll To Pricing

What's special about these configurable enclosures?

  • UL logoHigh 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
  • RoHSGrounding 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

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.

Images

Middle Atlantic ERK Enclosures with Rear Door
PART # RU HEIGHT WIDTH DEPTH COLOR PRICE
QMA-ERK-1820 18 35.625" 22" 20" Black
Qty:  
QMA-ERK-1825 18 35.625" 22" 25" Black
Qty:  
QMA-ERK-2120 21 40.875" 22" 20" Black
Qty:  
QMA-ERK-2125 21 40.875" 22" 25" Black
Qty:  
QMA-ERK-2720 27 51.375" 22" 20" Black
Qty:  
QMA-ERK-2725 27 51.375" 22" 25" Black
Qty:  
QMA-ERK-3520 35 65.375" 22" 20" Black
Qty:  
QMA-ERK-3525 35 65.375" 22" 25" Black
Qty:  
QMA-ERK-4020 40 74.125" 22" 20" Black
Qty:  
QMA-ERK-4025 40 74.125" 22" 25" Black
Qty:  
QMA-ERK-4420 44 81.125" 22" 20" Black
Qty:  
QMA-ERK-4425 44 81.125" 22" 25" Black
Qty:  
 
Middle Atlantic ERK Enclosures without Rear Door
PART # RU HEIGHT WIDTH DEPTH COLOR PRICE
QMA-ERK-1820LRD 18 35.625" 22" 20" Black
Qty:  
QMA-ERK-1825LRD 18 35.625" 22" 25" Black
Qty:  
QMA-ERK-2120LRD 21 40.875" 22" 20" Black
Qty:  
QMA-ERK-2125LRD 21 40.875" 22" 25" Black
Qty:  
QMA-ERK-2720LRD 27 51.375" 22" 20" Black
Qty:  
QMA-ERK-2725LRD 27 51.375" 22" 25" Black
Qty:  
QMA-ERK-3520LRD 35 65.375" 22" 20" Black
Qty:  
QMA-ERK-3525LRD 35 65.375" 22" 25" Black
Qty:  
QMA-ERK-4020LRD 40 74.125" 22" 20" Black
Qty:  
QMA-ERK-4025LRD 40 74.125" 22" 25" Black
Qty:  
QMA-ERK-4420LRD 44 81.125" 22" 20" Black
Qty:  
QMA-ERK-4425LRD 44 81.125" 22" 25" Black
Qty:  
 
ERK Tops with Fan Options
PART # NIMBER OF FANS FAN CONTROLLER FREE AIR CFM FITS COLOR PRICE
QMA-ERK-10FT-550CFM One 10" Fan Not Included 550 ERK 35,40, 44 RU Models Black
Qty:  
QMA-ERK-10FT-FC One 10" Fan Included 550 ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
QMA-ERK-6FT-440CFM Two 6" Fans Not Included 440 ERK 35,40, 44 RU Models Black
Qty:  
QMA-ERK-4FT-285CFM Three 4.5" Fans Not Included 285 ERK 35,40, 44 RU Models Black
Qty:  
QMA-ERK-4QFT-FC Three 4.5" Quiet Fans Included 150 ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
 
ERK Configurable Tops
PART # DESCRIPTION FITS COLOR PRICE
QMA-ERK-10FT ERK Top With Cutout For One 10" Fan ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
QMA-ERK-4FT ERK Top With Cutout ForThree 4.5" Fans ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
QMA-ERK-DT ERK Top With Duct Cool Adapter ERK 35,40, 44 RU Models Black
Qty:  
QMA-ERK-ST ERK Solid Top ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
QMA-ERK-VT ERK Slot Pattern Vented Top ERK 35,40, 44 RU Models Black, Granite Gray, Light Gray
Qty:  
 
ERK ACCESSORIES
PART # DESCRIPTION FITS FEATURES PRICE
MA-ERK-RR13 ERK 13RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 13 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR18 ERK 18RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 18 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR21 ERK 21RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 21 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR27 ERK 27RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 25 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR35 ERK 35RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 35 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR40 ERK 40RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 40 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
MA-ERK-RR44 ERK 44RU Rear Rail Option (Sold In Pairs, Includes Mounting Hardware) 44 RU Enclosures 11-Gauge, 10-32 Threaded
Qty:  
 
QMA-ERK-VRD-18 ERK 18RU Rear Vented Door Option 18 RU Enclosures Provides 64% Open Area
Qty:  
QMA-ERK-VRD-21 ERK 21RU Rear Vented Door Option 21 RU Enclosures Provides 64% Open Area
Qty:  
QMA-ERK-VRD-27 ERK 27RU Rear Vented Door Option 25 RU Enclosures Provides 64% Open Area
Qty:  
QMA-ERK-VRD-35 ERK 35RU Rear Vented Door Option 35 RU Enclosures Provides 64% Open Area
Qty:  
QMA-ERK-VRD-40 ERK 40RU Rear Vented Door Option 40 RU Enclosures Provides 64% Open Area
Qty:  
QMA-ERK-VRD-44 ERK 44RU Rear Vented Door Option 44 RU Enclosures Provides 64% Open Area
Qty:  
 
QMA-ERK-Z4 ERK Series Seismic Brackets ERK Enclosures Seismic Certified Mounting
Qty:  
QMA-CBS-ERK-20 ERK Commercial Grade Caster Base 20" Deep Enclosures 1,300 lbs. Weight Capacity
Qty:  
QMA-CBS-ERK-20R ERK Fine Floor Caster Base 20" Deep Enclosures 700 lbs. Weight Capacity
Qty:  
QMA-CBS-ERK-25 ERK Commercial Grade Caster Base 25" Deep Enclosures 1,300 lbs. Weight Capacity
Qty:  
QMA-CBS-ERK-25R ERK Fine Floor Caster Base 25" Deep Enclosures 700 lbs. Weight Capacity
Qty:  
  • 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
Price
Qty:  
Qty:  
Qty:  
Qty:  
Qty:  
Qty:  
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
Price
Qty:  
Qty:  
Qty:  
Qty:  
Qty:  
Qty:  
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

ENCLOSURE APPLICATION GUIDE -



MANUALS & USER GUIDES -



RELATED ARTICLES



HOW-TO CORNER -

 

VIEW OUR GLOSSARY

 

fan4.5" Rack Fans
From
These Middle Atlantic fans are ideal for cooling your wall mount or cabinet enclosures. Fans are relatively quiet, 115 Volt with a choice of airflow of 50 CFM (cubic feet per minute) and 95 CFM.

115 Volt Power StripsPD Series 115 Volt Power Strips - Middle Atlantic
From
These power strips are specifically designed to work with Middle Atlantic racks, fitting nicely within the rack and providing convenient outlets to plug into. With a choice of 15 or 20 amp circuits, Middle Atlantic power strips feature unique mounting lances and quick clips, and have been engineered to attach to rack rail brackets on all of their welded racks.

 

vertical lacer stripsVertical Lacer Strips - Middle Atlantic
From
Middle Atlantic Vertical Lacer Strips are made of perforated steel and can be mounted vertically to rack rail brackets on all Middle Atlantic product enclosures. These vertical strips allow for installers to be able to lace cable bundles from the top to the bottom of an enclosure system.

Middle Atlantic ERK Preconfigured EnclosuresMiddle Atlantic Preconfigured ERK Series Enclosures
From
Preconfigured to eliminate the frustration of assembling a server rack piece by piece, this complete enclosure can be easily loaded with equipment right out of the box.

 

Home Theater Rack ShelfRack Screws - Kendall Howard
From
Packed in a reusable tin with starter points to ensure easy installation, these screws are cold forged and heat treated to prevent stripping. Black finish

perforated security cover for enclosureMiddle Atlantic Perforated Security Covers
From
Available with different levels of perforation, these security covers install onto the front of your server rack or enclosure to block unauthorized access to rackmount equipment while still allowing visibility and air circulation.

Do you have any question about this product?
Let our experts and customers resolve all your doubts

Did you know that we can give you a quote for most of our products, including shipping?


You can also call us toll free 866.222.0030

What can make this page better?

We do everything we can think of to provide you with the product specs, images and ordering info you need, but if we're missing something or still have room to improve, please let us know. Your comments, suggestions and questions are the best tools we have for serving you better!