DRZ4 Series | GR-63-CORE Zone 4 Seismic 2-Post Rack (2,000 lbs. Capacity)
2-Post Open Frame Rack Certified to Telcordia GR-63-CORE Zone 4 Seismic Standards for Mission-Critical Telecom and Infrastructure Applications

The DRZ4 Series 2-post open frame rack is engineered for mission-critical applications requiring certified seismic performance. Independently tested to Telcordia GR-63-CORE zone 4 standards and UL 2416 rated to 2,000 lbs. It delivers maximum strength and reliability in telecom and infrastructure environments.

Designed for central offices, data centers and regulated installations, the DRZ4 Series provides open access, structural integrity and secure deployment in the most demanding seismic conditions.
Product Features
  • 10-gauge welded steel construction (2,000 lbs. capacity) provides maximum structural strength for telecom and mission-critical equipment.
  • Open frame 2-post rack design (19" EIA-compliant) allows full access to equipment for installation, serving and cable management.
  • Reinforced rack design with structural base and increased width (22.75") improves stability and side-to-side load strength.
  • Double-tapped #10-32 threaded mounting rails with rack unit markings supports standard rack equipment and consistent installation. Includes integrated grounding studs for bonding and safety.
  • Freestanding base with bolt-down capability supports secure installation in high-risk seismic environments.
  • Side mounting and ganging provisions support cable management integration and multi-rack deployments.
  • Available in multiple heights supports a range of installation requirements.
Product Compliance and Certifications
  • UL 2416 listed rack (2,000 lbs. load rating) ensures verified structural performance for high-capacity installations.
  • Independently tested and certified to Telcordia GR-63-CORE zone 4 seismic standards ensures performance in the most demanding seismic environments.
  • Seismic rated to 800 lbs. dynamic load (with bolt-down kit) in accordance with GR-63-CORE supports deployment in regulated telecom and infrastructure environments.
  • TAA-compliant, manufactured in North America supports government procurement requirements and ensures consists quality.
  • Black powder coat finish (Greenguard, TSCA and RoHS compliant) supports indoor air quality and environmental compliance.
Where the DRZ4 Series Works Best
  • Telecom central offices and carrier facilities.
  • Seismic zone 3 and zone 4 installations.
  • Critical infrastructure and utility networks.
  • Government and regulated environments.
  • Data centers requiring certified seismic compliance.
Applications and when to use the DRZ4 Series
  • Installations requiring Telcordia GR-63-CORE zone 4 seismic certifications.
  • Applications needed maximum load capacity (up to 2,000 lbs.).
  • Environments where regulatory compliance and certification are mandatory.
  • Deployments requiring secure, bolt-down rack installations.
  • Telecom and infrastructure systems requiring NEBS-compliant solutions.
When Another Product May Be a Better Choice
  • When you need a heavy-duty rack with the IBC/CBC seismic rating but not Telcordia GR-63-CORE zone 4 certification, consider our DNRRHDW Series. This provides a more cost-effective solution with a traditional rack design.
Hammond Manufacturing Rack Solutions
KGA Enclosures Ltd are fully authorised distributors of the DRZ4 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 knock-offs and 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.
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DRZ4 Series | Hammond Manufacturing Rack Solutions | KGA Enclosures Ltd
Part No Brand Product Information 1+ 5+ 10+ 25+
DRZ42377 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
DRZ477 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.
Rack Isolation Kit
Part No Brand Product Information 1+ 5+ 10+ 25+
RIK19Z4 Hammond Click part number for more details P.O.A. P.O.A. P.O.A. P.O.A.
RIK23Z4 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.

DRZ4 Series | Open Frame Racks - Welded Steel - 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

DRZ4 Series | Hammond Manufacturing Rack Solutions | Enclosures - Racks - Transformers - Components