CPI four-post racks offer the strength and stability of a cabinet in an open architecture. Four-post racks provide easy access to cabling and equipment and unrestricted airflow for ventilation. They also permit the addition of a wide variety of CPI vertical cabling sections. CPI manufactures two styles of fixed four-post frames and two styles of adjustable depth frames to best meet your mounting requirements.

Four-Post Racks – the strength and stability of a freestanding cabinet in a cost-effective open architecture

  • Constructed of aluminum and/or steel
  • Open architecture for easy access to cable and unrestricted airflow
  • RMU markings for fast equipment mounting
  • Up to 2,200 lb load rating
  • Ability to add CPI vertical cabling section
  • Six styles of QuadraRack™/ServerRack Frames to suit your application
    • QuadraRack 4-Post Frame
    • QuadraRack Server Frame
    • Adjustable QuadraRack (UL Listed)
    • Adjustable ServerRack (UL Listed)
    • Adjustable Rail QuadraRack (UL Listed)
    • Adjustable Rail ServerRack (UL Listed)

QuadraRack Frame or Cabinet System?

Features    
 QuadraRack™ Fixed 4-Post Frame

QuadraRack Fixed Server Frame
Adjustable QuadraRack™

Adjustable ServerRack
Adjustable Rail QuadraRack™ (ARQR)

Adjustable Rail ServerRack (ARSR)
Cabinet Systems
Architecture Open systemOpen systemOpen system (side panels available) UL ListedEnclosed or open frame-only configurations
Frame Depth FixedAdjustable during assemblyAdjustable after assemblyAdjustable after assembly
Mounting Rails (EIA-310-D-Standard Hole Spacing) #12-24 tapped or square-punched#12-24 tapped or square-punched#12-24 tapped or square-punched#12-24 tapped, square-punched or specialty
Static Load Rating 1,000 lb to 2,000 lb (453.6 kg to 907.2 kg)2,000 lb (907.2 kg)2,204 lb (1000 kg)800 lb to 2,500 lb (362.9 kg to 1134 kg)
Dimensions One width (19"), three heights (7’, 8’ and 9’) and one depth (29")One width (19"), four heights (6', 7’, 8’ and 9’) and four adjustable depths that range from 15.74" (400 mm) to 42.32" (1075 mm)One width (19"), three heights (6', 7’ and 8’) and two depths of 23.62" (600 mm) and 35.43" (900 mm)Two rack-mount widths (19” and 23”) and a large variety of heights and depths
Cable Management Vertical Cabling sections available as accessoriesVertical Cabling sections available as accessoriesTop-Mount Cable Waterfall Tray is included

Vertical and horizontal cabling sections available as accessories
Integrated space for cable organization

A vertical cabling section included inside most cabinets

Additional cabling sections available, if required


QUADRARACK 4-POST FRAME

The QuadraRack 4-Post Frame provides a sturdy, cost-effective solution for supporting large rack-mount communications equipment, such as routers and voice or network switches, in telecommunications and equipment rooms and other network facilities. The QuadraRack offers the strength and stability of an enclosure in an open mounting system that provides easy access to equipment and cabling.

The QuadraRack 4-Post Frame will support up to 2000 lb of equipment. The corner posts are C-shaped equipment mounting channels that that are fixed 29" apart to provide front and rear support for 19" rack-mount equipment or shelves. The channels surround and protect equipment. Each rack-mount space is marked and numbered on the channels making it easy to locate and position equipment. Mounting holes are threaded allowing quick installation of equipment or shelves.

The QuadraRack 4-Post Frame can be used in combination with CPI Standard Racks (two-post racks), Cabling Sections (vertical cable managers) and overhead Cable Runway (ladder rack) to support a wide range of equipment storage applications. You can attach 4" wide to 20" wide CPI Cable Runway (ladder rack) directly to the top pan with J-bolts or a Cable Runway Elevation Kit. CPI Cabling

Key Features:

  • Stability and strength of an enclosure in a open mounting system
  • Provides easy access to equipment and cabling
  • Quick assembly with one-piece top and bottom pan sets
  • Easy to bay together to create multi-frame configurations
  • Use with any CPI Cabling Section to manage cables
  • Equipment mounting locations are marked and numbered on the mounting channel
  • Threaded mounting holes speed installation of rack-mount equipment and shelving
  • Support large equipment on heavy-duty four-post fixed and sliding shelves

Application:

  • Use to support large modular network or voice switches and routers in communications equipment rooms.
  • Use with shelves to support large, heavy computer and data processing equipment.

Related Accessories:

  • Universal Horizontal Cable Manager
  • Jumper Trays
  • Fixed and Sliding Equipment Shelves
  • LCD Monitor + Shelf
  • Keyboard + Tray

Use With:

  • MCS Master Cabling Section
  • CCS Combination Cabling Section
  • VCS Vertical Cabling Section
  • Global Vertical Cabling Section

Part NumberDescriptionShipping Weight
50120-X0319"W x 29"D x 7'H, 45 RMU65 lb
50120-X1519"W x 29"D x 8'H, 51 RMU67 lb
50120-X0819"W x 29"D x 9'H, 58 RMU69 lb


QUADRARACK SERVER FRAME

The QuadraRack Server Frame provides a sturdy, cost-effective solution for supporting rack-mount computer servers and data storage equipment in data centers, computer equipment rooms and other facilities. The QuadraRack offers the strength and stability of an enclosure in an open mounting system that provides easy access to equipment and cabling.

The QuadraRack Server Frame will support up to 1,000 lb of equipment. The corner posts are C-shaped equipment mounting channels that that are fixed 29" apart to provide front and rear support for 19" rack-mount equipment or shelves. The channels surround and protect equipment. Each rack-mount space is marked on the channels making it easy to locate and position equipment. Mounting holes are square-punched allowing mounting hardware (cage nuts) to change to match equipment requirements.

The QuadraRack Server Frame can be used in combination with CPI Standard Racks (two-post racks), Cabling Sections (vertical cable managers) and overhead Cable Runway (ladder rack) to support a wide range of equipment storage applications. You can attach 12" wide and 18" wide CPI Cable Runway (ladder rack) directly to the top pan with J-bolts or a Cable Runway Elevation Kit. CPI Cabling Sections bolt directly to the side of the frame, and the base of the frame is punched for easy floor attachment.

Key Features:

  • Stability and strength of an enclosure in an open mounting system
  • Provides easy access to equipment and cabling
  • Quick assembly with one-piece top and bottom pan sets
  • Easy to bay together to create multi-frame configurations
  • Use with any CPI Cabling Section to manage cables
  • Equipment mounting locations are marked on the mounting channels
  • Square-punched mounting holes allow you to change equipment mounting hardware to meet the requirements of rack-mount server and data storage equipment
  • Support large equipment on heavy-duty four-post fixed and sliding shelves
Application
  • Use to support rack-mount server and data storage equipment in data centers or computer equipment rooms.
  • Use with shelves to support large, heavy computer and data processing equipment.
Related Accessories:
  • Universal Horizontal Cable Manager
  • Jumper Trays
  • Fixed and Sliding Equipment Shelves
  • LCD Monitor + Shelf
  • Keyboard + Tray
Use With:
  • MCS Master Cabling Section
  • CCS Combination Cabling Section
  • VCS Vertical Cabling Section
  • Global Vertical Cabling Section

Part NumberDescriptionShipping Weight
15053-X0319"W x 29"D x 7'H77 lb

Square-Punched Hardware Kits (sold separately)
Part NumberNominal SizePackage OfFinishShipping Weight
12637-001M-625Gold Over Zinc1 lb
12638-00110-3225Zinc1 lb
12639-00112-2425Black1 lb


ADJUSTABLE SERVERRACK AND QUADRARACK

The Adjustable ServerRack and the Adjustable QuadraRack provide a sturdy, cost-effective solution for supporting rack-mount network, computer server and data storage equipment in data centers, computer equipment rooms and other IT facilities. Both racks offer the strength and stability of an enclosure in an open four-post frame that provides easy access to equipment and cabling.

Each rack will support up to 2,000 lb (907.2 kg) of equipment. The corner posts are C-shaped equipment mounting channels that provide front and rear support for 19" wide rack-mount equipment or shelves. The front and rear frames are welded to reduce assembly time. Four brackets connect the front and rear corners of the rack. The rack is available in four heights and four depth ranges. The front-to-rear depth of the mounting channels can be adjusted up to 5.91" (150 mm) in depth in .98" (25 mm) increments during assembly. The mounting channels are fixed in place once assembled to surround and protect equipment.

The Adjustable ServerRack has square-punched holes that let you change mounting hardware (cage nuts) to match specific computer server and data storage equipment mounting requirements. The Adjustable QuadraRack has threaded mounting holes that make installation time of patch panels, fiber enclosures and network switches shorter. Each RMU is marked and numbered on the channels making it easy to locate and position equipment. A second set of holes along the sides of the channels lets you add optional side-mounted Equipment Support Rails that use no additional RMU space.

The Adjustable ServerRack and the Adjustable QuadraRack can be used in combination with CPI Standard Racks (two-post racks), Cabling Sections (vertical cable managers) and overhead Cable Runway (ladder rack) to support a wide range of equipment storage applications. Attach 6" (150 mm) wide to 24" (600 mm) wide CPI Cable Runway to the top of the rack with a Cable Runway Mounting Bracket. CPI Cabling Sections bolt directly to the side of the channels, and the base of the rack is punched for easy floor attachment.

Key Features

  • Stability and strength of a welded steel enclosure in an open four-post frame
  • Open design for unrestricted airflow and easy access to equipment and cabling
  • Self-squaring assembly with welded front and rear frames reduces assembly time
  • Mounting channels adjust in depth to provide front and rear support for equipment
  • Maximizes floor space with a minimal rack footprint
  • Rack components are bonded together during assembly in accordance with industry standards
  • Includes a Two Mounting Hole Ground Terminal Block for easy attachment to the Telecommunications Grounding Busbar
  • Choose square-punched or threaded equipment mounting holes
  • RMU spaces are marked and numbered on the mounting channels
  • Easy to bay together to create multi-rack configurations
  • Use with any CPI Cabling Section to manage cables
  • Support large equipment on heavy-duty shelves or on side-mounted Equipment Support Rails
Applications
  • The Adjustable ServerRack with EIA Universal square-punched equipment mounting holes support rack-mount server and data storage equipment in data centers or computer equipment rooms
  • The Adjustable QuadraRack with EIA Universal threaded equipment mounting holes support large modular network or voice switches and routers in communications equipment rooms
  • Use with shelves or rails to support large, heavy computer and data processing equipment
Use With
  • MCS Master Cabling Section
  • CCS Combination Cabling Section
  • VCS Vertical Cabling Section
  • Global Vertical Cabling Section
Related Accessories
  • Universal Horizontal Cable Manager
  • Jumper Trays
  • Heavy-Duty Equipment Shelves and Rails
  • Vertical and Horizontal Power Strips
  • LCD Monitor + Shelf
  • Keyboard + Tray

Adjustable ServerRack and Adjustable QuadraRack, 19

15213

X

X

X

   
    

Mounting Hole Style

Mounting Channel Depth Range (C)

 
 

1

  Square-Punched15.75" (400 mm) to 21.65" (550 mm) Deep 
 

2

  Square-Punched22.64" (575 mm) to 28.54" (725 mm) Deep 
 

3

  Square-Punched29.53" (750 mm) to 35.43" (900 mm) Deep 
 

4

  Square-Punched36.42" (925 mm) to 42.32" (1075 mm) Deep 
 

5

  #12-24 Threaded15.75" (400 mm) to 21.65" (550 mm) Deep 
 

6

  #12-24 Threaded22.64" (575 mm) to 28.54" (725 mm) Deep 
 

7

  #12-24 Threaded29.53" (750 mm) to 35.43" (900 mm) Deep 
 

8

  #12-24 Threaded36.42" (925 mm) to 42.32" (1075 mm) Deep 
    

Color

  
  

1

 Gray  
  

2

 Computer White  
  

7

 Black  
    

RMU

Total Height

Rack Height

   

01

38 RMU72" (1800 mm)67" (1700 mm)
   

03

45 RMU84" (2100 mm)79" (2000 mm)
   

15

51 RMU96" (2400 mm)91" (2300 mm)
   

08

58 RMU108" (2740 mm)103" (2620 mm)


ADJUSTABLE RAIL QUADRARACK AND SERVERRACK

The Adjustable Rail QuadraRack (ARQR) and the Adjustable Rail ServerRack (ARSR) provide a sturdy, feature rich solution for supporting rack-mount network, computer server and data storage equipment in data centers, computer equipment rooms and other IT facilities. Both racks offer the strength and stability of an enclosure in an open four-post mounting system that provides easy access to equipment and cabling.

The front and rear frames are welded to speed assembly and increase strength. Four brackets connect the front and rear corners of the frames. Front mounting rails attach to the front frame in a fixed position and align with the front of the rack or can be reversed for recessed mounting to maximize side-to-side airflow through network switches. Rear mounting rails can be adjusted in depth even after the rack has been bolted to the floor and can be extended beyond the rear of the frame by 6" (150 mm). A second set of holes along the sides of the frame lets you add optional side-mounted equipment support rails and vertical power strips that are independent of the mounting rails and use no RMU space. The bottom of the rack is punched for easy floor attachment. Each rack will support up to 2,204 lb (1000 kg) of equipment.

The Adjustable Rail ServerRack has square-punched mounting rails that let you change mounting hardware (cage nuts) to match specific computer server and data storage equipment mounting requirements. The Adjustable Rail QuadraRack has threaded mounting holes that speed installation of patch panels, fiber enclosures and network switches. Each RMU is marked and numbered on the front pair of mounting rails making it easy to locate and position equipment. The front pair of mounting rails may be mounted to allow RMU numbering to start at the top or bottom of the rack.

Each rack is available in three heights and two depths and includes a Top-Mount Cable Waterfall Tray with adjustable radius drops to allow easy side-to-side routing for patch cords. Use with any CPI cabling section (vertical cable manager) or Cable Guide Kits to organize cables along the sides of the rack. Attach CPI Cable Runway to the top of the rack with J-Bolts, a Cable Runway Elevation Kit or a Cable Runway Mounting Bracket to support overhead premise cables. A side panel option is also available and can be mounted to CPI’s vertical cable management products.

Key Features

  • The rear mounting rails adjust in depth front-to-rear to match equipment mounting requirements
  • RMU spaces are marked and numbered on the front mounting rails; flip the mounting rails to change numbering bottom-to-top or top-to-bottom
  • Includes a Top-Mount Cable Waterfall Tray to manage cables; and (1) 7 RMU T-shaped cable guide which can be snapped onto the front or rear of the rack and aligns with each RMU space
  • Rack components are bonded together during assembly per TIA-942
  • Stability and strength of a welded steel enclosure in an open mounting system
  • Open design for unrestricted airflow and easy access to equipment and cabling
  • Self-squaring assembly with welded front and rear frames reduces assembly time
  • EIA-310-D compliant mounting rails support 19” wide rack-mount equipment
  • Choose square-punched mounting holes for server equipment or threaded mounting holes for network equipment
  • Includes a Two Mounting Hole Ground Terminal Block for easy attachment to the telecommunication ground
  • Bay together easily to create multi-rack configurations
  • Use with any CPI cabling section
  • Vertical power strips attach to the side of the rack frame
  • Support large equipment on heavy-duty four-post shelves or on side-mounted equipment support rails
  • Side panels are available to cover the ends of the rack and/or cable managers
  • Ships flat on a pallet
Application
  • The Adjustable Rail QuadraRack™ with EIA standard threaded equipment mounting holes supports large modular network or voice switches, routers and other network equipment in communications equipment rooms
  • The Adjustable Rail ServerRack with EIA standard square-punched equipment mounting holes supports rack-mount server and data storage equipment in data centers or computer equipment rooms
  • Use with shelves or rails to support large, heavy computer and data storage equipment
Related Accessories
  • Universal Horizontal Cable Manager
  • Jumper Trays
  • Heavy-Duty Equipment Shelves and Rails
  • Vertical and Horizontal Power Strips
  • LCD Monitor + Shelf
  • Keyboard + Tray

Adjustable Rail QuadraRack
Part NumberRail StyleRMURack HeightRack DepthMax. Rail DepthShipping Weight
15251-X01 #12-24 Threaded38 RMU72" (1800 mm)23.62" (600 mm)29.52" (750 mm)166 lb (75.3 kg)
15251-X03 #12-24 Threaded45 RMU84” (2100 mm)23.62" (600 mm)29.52" (750 mm)185 lb (83.9 kg)
15251-X15 #12-24 Threaded51 RMU96” (2400 mm)23.62" (600 mm)29.52" (750 mm)206 lb (93.4 kg)
15252-X01 #12-24 Threaded38 RMU72” (1800 mm)35.43" (900 mm)41.33" (1050 mm)175 lb (79.4 kg)
15252-X03 #12-24 Threaded45 RMU84” (2100 mm)35.43" (900 mm)41.33" (1050 mm)193 lb (87.5 kg)
15252-X15 #12-24 Threaded51 RMU96” (2400 mm)35.43" (900 mm)41.33" (1050 mm)215 lb (97.5 kg)

Adjustable Rail ServerRack
Part NumberRail StyleRMURack HeightRack DepthMax. Rail DepthShipping Weight
15253-X01#12-24 Threaded38 RMU72" (1800 mm)23.62" (600 mm)29.52" (750 mm)166 lb (75.3 kg)
15253-X03#12-24 Threaded45 RMU84” (2100 mm)23.62" (600 mm)29.52" (750 mm)185 lb (83.9 kg)
15253-X15#12-24 Threaded51 RMU96” (2400 mm)23.62" (600 mm)29.52" (750 mm)206 lb (93.4 kg)
15254-X01#12-24 Threaded38 RMU72” (1800 mm)35.43" (900 mm)41.33" (1050 mm)175 lb (79.4 kg)
15254-X03#12-24 Threaded45 RMU84” (2100 mm)35.43" (900 mm)41.33" (1050 mm)193 lb (87.5 kg)
15254-X15#12-24 Threaded51 RMU96” (2400 mm)35.43" (900 mm)41.33" (1050 mm)215 lb (97.5 kg)

X=Color; 1=Gray, 2=White, 7=black. Rails are 19”EIA. Minimum Rail Depth is 15.00” (380 mm).