C4 Series | Modular Server Rack Cabinet System (300 lbs. Capacity)
High-Performance Modular Server Rack Cabinet System Designed For Data Center And IT Environments Requiring Flexibility, Scalability And Advanced Features
Purchase Product Product Data Sheet Customisation Options

The C4 Series modular server rack cabinet system provides a high-performance solution for data center and IT environments. With a 3,000 lbs. load capacity and square hole mounting rails, it supports server compatibility, high-density equipment and scalable infrastructure deployments.

Designed for flexibility, the C4 Series allows users to configure cabinet components to meet specific requirements, while supporting advanced airflow, cable management and containment integration.
Product Features
  • 14-gauge steel cabinet frame with 12-gauge reinforced corner brackets and 16-gauge doors and panels (3,000 lbs. UL 2416 capacity) provides high-strength support for server, network and IT equipment.
  • Modular cabinet system design based ni the C4 Series platform allows users to configure frames, rails, panels, doors and accessories to build a complete solution.
  • Square hole EIA-310 compliant mounting rails (12-gauge steel) support server compatibility including sliding rail kits. Includes a starter pack of cage nuts and mounting hardware.
  • Infinitely adjustable mounting depth using C-channel struts supports flexible equipment installation and high-density configurations.
  • High airflow door options (up to ~79% open area) support cooling requirements for active IT and server equipment.
  • Multiple cabinet widths (24" and 30") support cable management, high-density deployments and side-access requirements.
  • Interchangeable top panels with cable entry, fan and airflow options support customizable cooling and cable routing.
  • Extensive accessory ecosystem (cable management, containment, PDU's and shelves) supports scalable infrastructure deployment.
  • Baying capability and containment compatibility support data center row-based deployments.
  • Grounding and bonding provisions throughout frame, doors and panels support safe installation and compliance requirements.
Product Compliance and Certifications
  • UL 2416 listed rack (3,000 lbs load rating) when assembled by Hammond ensures verified structural performance for high-capacity installations. Individual components are not UL 2416 or seismic rated independently and must be assembled as a complete cabinet to meet certification requirements.
  • Seismic rated to 1,200 lbs. dynamic load (IBC, CBC, NBC, ASCE standards) when assembled by Hammond supports deployment in regulated and high-risk environments.
  • TAA-compliant, manufactured in North America supports government procurement requirements and ensures consistent quality.
  • Black or white powder coat finish (Greenguard, TSCA and RoHS compliant) supports indoor air quality and environmental compliance.
Available Options Include
  • 24U, 42U and 44U mounting heights.
  • 24" and 30" overall frame widths.
    • 24" wide frame includes generous cabling space and four (4) 3.5" wide cable entry holes on the top.
    • 30" wide frame includes extra generous cabling space and support for up to four optional vertical cable managers.
  • 31.5", 36", 42" and 48" overall frame depths.
  • All frames include four (4) leveling feet and support optional casters.
  • 19" and 23" mounting rails are available in square-hole punched, drilled and tapped #10-32.
  • Flush-mounted doors with quarter-turn lock available in solid, acrylic window, vented full or split/barn.
  • Side panels are available in both solid and vented for thermal induction.
  • One (1) interchangeable top panel opening; is available in solid, vented fan tops with or without fans installed.
  • One (1) interchangeable bottom panel opening, available in solid.
  • Vertical cable managers are available in tray, enclosed metal or finger versions.
Where the C4 Series Works Best
  • Data centers and enterprise IT environments.
  • High-density server and storage deployments.
  • Network infrastructure installations.
  • Colocation and cloud environments.
  • Applications requiring modular cabinet configurations with performance requirements.
Best Applications for the C4 Series
  • Applications needing server compatibility with square hole rails and sliding rail support.
  • Environments where cabinet configurations must be customised.
  • Deployments requiring advanced airflow and cable management.
  • Installations supporting scalable data center infrastructure.
When Another Product May Be a Better Choice
  • When you need a fully assembled version of this platform with no configuration required, consider our C4RR_A Series or C4RR_D Series.
  • When you need a flagship cabinet with maximum performance and integrated features, consider our H1 Series.
  • When you need a cost-effective assembled cabinet for general IT applications, consider our RB-DC Series.
  • When you need a multi-tenant cabinet for shared environments, consider our CLC Series.
Hammond Manufacturing Rack Solutions
KGA Enclosures Ltd are fully authorised distributors of the C4 Series from Hammond Manufacturing Rack Solutions. We also stock the entire Hammond Manufacturing Rack Solutions range at great competitive pricing and with full customisation options on all applicable products.

Please remember, to always use approved distributors like KGA Enclosures Ltd as some companies sell cheap knock-offs/copies, so using approved suppliers assures you receive a genuine product.

To purchase a product, request a quote/lead time and for all other general enquires, please use our contact form to contact us. We aim to respond promptly to all enquires. Payment options include Bank Transfer, PayPal and Credit/Debit cards. Unfortunately, we do not accept cash and cheques.

Share This Product Range
Share Range on Facebook Share Range on LinkedIn Share Range on X
C4 Series | Hammond Manufacturing Rack Solutions | KGA Enclosures Ltd
Product Options
Please click here for all ordering, pricing confirmation and lead times.
Part No Brand Product Information 1+ 5+ 10+ 25+
C4F244231BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F244236BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F244242BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247331BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247336BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247342BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247731BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247736BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F247742BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F307731BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F307736BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4F307742BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
Assembly Hardware
Part No Brand Product Information 1+ 5+ 10+ 25+
C4K-Z4 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Bottom Panels
Part No Brand Product Information 1+ 5+ 10+ 25+
Brushed
C4BBCE2431BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BBCE2436BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BBCE2442BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BBCE3031BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BBCE3036BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BBCE3042BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Solid
C4B2431SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4B2436SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4B2442SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4B3031SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4B3036SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4B3042SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Flush Doors (Hinged on Left)
Part No Brand Product Information 1+ 5+ 10+ 25+
Solid
C4DF2442SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2473SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2477SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF3077SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented
C4DF2442VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2473VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2477VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF3077VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented Split (Barn)
C4BD2442VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BD2473VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BD2477VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4BD3077VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Window
C4DF2442PBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2473PBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF2477PBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4DF3077PBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Right-Hand Hinge
Part No Brand Product Information 1+ 5+ 10+ 25+
C4RHINGE Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Side Panels
Part No Brand Product Information 1+ 5+ 10+ 25+
Solid
C4SP4231SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP4236SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP4242SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7331SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7336SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7342SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7731SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7736SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7742SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented
C4SP4231VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP4236VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP4242VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7331VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7336VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7342VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7731VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7736VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4SP7742VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Surface Doors with Swing Handle
Part No Brand Product Information 1+ 5+ 10+ 25+
Solid
C4D2442SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2473SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2477SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D3077SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented
C4D2442VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2473VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2477VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D3077VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented Split (Barn)
C4D2442BBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2473BBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2477BBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D3077BBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Window
C4D2442WBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2473WBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D2477WBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4D3077WBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Top Panels
Part No Brand Product Information 1+ 5+ 10+ 25+
One (1) 10" 550 CFM Fan without Thermostat
C2T1923F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2423F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2431F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2436F10BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Four (4) 4.7" 100 CFM Fans with Thermostat
C2T1923F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2423F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2431F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2436F4TBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Fan Cutout/Cable Entry
C2T1923FBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931FBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936FBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Fan Vents
C2T1923VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2423VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2431VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2436VFBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Solid
C2T1923SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2423SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2431SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2436SBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Vented
C2T1923VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1931VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T1936VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2423VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2431VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C2T2436VBK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
C4 Vertical Cable Managers
Part No Brand Product Information 1+ 5+ 10+ 25+
Cable Tray
VCT42 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
VCT73 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
VCT77 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Cable Tray with Tooless PDU Bracket
VCTPDU73 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
VCTPDU77 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Finger Manager (30" Wide version comes with door)
C4VFM42UBK Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4VFM44UBK Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4VFMC3042UBK Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4VFMC3044UBK Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
Metal Manager with Hinged Door
C4VCM77BK1 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
Rack Rails
Part No Brand Product Information 1+ 5+ 10+ 25+
19" Rack Rails - Square Hole
C4PR2442SZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4PR2473SZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4PR2477SZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4PR77SZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
19" Rack Rails - Tapped 10-32
C4PR2473TZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4PR2477TZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
C4PR77TZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
23" Rack Rails - Square Hole
C4PR7723SZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
23" Rack Rails - Tapped 10-32
C4PR7723TZPL Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.
Split Door Retrofit Kit
Part No Brand Product Information 1+ 5+ 10+ 25+
SDRK Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
For product compatibility and more information, please see the product data sheet.

C4 Series | Cabinet Server Racks - Assembled | Hammond Manufacturing Rack Solutions | KGA Enclosures Ltd

Hammond Manufacturing Customisation Services
Product Customisation Options
What makes KGA Enclosures Ltd different from most other larger distributors is that we can offer full customisation services on all enclosures and accessories. All customisation work is undertaken by the relevant supplier, (some smaller production runs are done by utilizing an outside contractor) at their own manufacturing facilities. These services include milling or punching holes and slots into the enclosure or end plates for cables, connectors, switches, etc. Printing and silk-screening services all for the addition of text, logos, and graphics onto both the enclosure and end plates, to allow the end user to easily identify the product, and to allow the final product to look more elegant. Contact us today to see how we can assist you.
Modified Electronic Enclosures
Almost every enclosure will need some kind of modification to be useful. In house, modifications can be tedious, over-complicated, and a distraction from your core business. A third party shop can add time and expense. Let us help you by delivering quality products made to your exact specifications.
Why Use Hammond Manufacturing?
  • Hammond offers a wide selection and massive inventory ready to be modified.
  • Typically, the minimum order is 25 units. This can vary depending on the product and services required.
  • Hammond has an experience enclosure modification team and two dedicated modification facilities located in North America and Europe. We are knowledgeable, available, and capable.
  • Hammond helps eliminate scrap and design errors with approval drawings to confirm correct interpretation of your design requirements. Many orders will also include fast delivery of sample enclosures for inspection. These steps ensure that your assembly fits perfectly before heading to the production stage.
Popular Modification Services Offered
  • Holes.
  • Cutouts.
  • Tapping and Countersinking.
  • Pressed-in hardware (studs, standoffs).
  • Silk Screening.
  • UV Printing.
  • Special colours.
  • Special length extrusions.
  • Pre-Installed Accessories.
  • Available services vary by product.
Customisation Serices | Hammond Manufacturing | KGA Enclosures Ltd

C4 Series | Hammond Manufacturing Rack Solutions | Enclosures - Racks - Transformers - Components