Digitus 820 mm Potential Equalization Bars for 19-Inch Rack with Grounding Kit, Copper (Set of 2)

Digitus 820 mm Potential Equalization Bars for 19‑Inch Rack with Grounding Kit

The Digitus 820 mm Potential Equalization Bars, sold as a set of two, are engineered to provide reliable equipotential bonding in high‑density server and network racks. Designed specifically for the standard 19‑inch rack format, these copper bars ensure that all metal components within the enclosure share a common electrical potential, thereby reducing the risk of differential voltage buildup and protecting sensitive equipment from electrostatic discharge.

Key Features

• Length: 820 mm (32.28 in) – perfectly matches the width of most 19‑inch racks, allowing full coverage across the front panel.
• Material: High‑purity copper – offers excellent conductivity and corrosion resistance, ensuring long‑term performance even in demanding environments.
• 24 Connection Points per bar – each bar provides 12 mounting slots on either side, allowing secure attachment of grounding leads or bonding wires to any metal surface within the rack.
• Integrated Grounding Kit – includes four high‑quality grounding cables with pre‑crimped connectors, ready for immediate installation.
• Standard 19‑inch Rack Compatibility – engineered to fit seamlessly into standard rack rails and mounting brackets without the need for additional adapters.
• Compliance with IEC/ANSI Standards – meets international safety and performance criteria for equipotential bonding in data centers and telecommunications facilities.

Design & Construction

The bars feature a rectangular cross‑section that maximizes surface area while maintaining a slim profile. The copper core is surrounded by a protective polyurethane coating, which prevents oxidation and facilitates easy cleaning with standard industrial wipes.

Each bar incorporates pre‑drilled holes aligned to the rack’s mounting rails, enabling quick installation using standard 19‑inch rack screws. The holes are spaced at 25 mm intervals, matching the common spacing of rack rail slots and ensuring a secure fit.

Installation Guide

1. Preparation: Verify that the rack is powered off and disconnected from any external power sources. Clean the mounting area to remove dust or debris.
2. Mounting the Bars: Align each bar with the rack rails, ensuring that the pre‑drilled holes line up with the rail slots. Secure the bars using 19‑inch rack screws (included in the kit). Tighten evenly to avoid warping.
3. Connecting Ground Leads: Attach the four grounding cables from the kit to the designated connection points on each bar. Use a torque wrench to achieve the manufacturer’s recommended tightening torque, ensuring a solid electrical bond.
4. Verification: After installation, use a multimeter or specialized equipotential tester to confirm that all metal surfaces within the rack are at the same potential. A reading of 0 V (or within acceptable tolerance) indicates proper bonding.

Benefits for Data Center Operations

• Enhanced Safety: By equalizing potentials, the bars prevent dangerous voltage differentials that could damage equipment or pose a shock hazard to personnel.
• Improved Reliability: Consistent grounding reduces the likelihood of transient faults caused by electrostatic discharge, leading to fewer downtime incidents.
• Compliance Assurance: Installing these bars helps meet regulatory requirements for electrical safety in IT infrastructure, such as IEC 60364 and ANSI C63.4.
• Scalable Design: The set of two bars covers the entire rack width, making it suitable for both single‑rack and multi‑rack configurations without additional components.
• Low Maintenance: Copper’s natural resistance to corrosion means that the bars require minimal upkeep; periodic visual inspections are usually sufficient.

Technical Specifications

Maintenance & Troubleshooting

Regular inspection is recommended to ensure that all connections remain tight and free from corrosion. If a sudden change in potential is detected:

1. Check Grounding Leads: Verify that each cable is securely fastened and not damaged.
2. Inspect for Physical Damage: Look for cracks or deformation in the bars, which could compromise conductivity.
3. Re‑measure Potentials: Use a calibrated multimeter to confirm readings across multiple points.
4. If issues persist, consult a qualified electrical engineer to assess the overall grounding scheme of the rack and surrounding infrastructure.

Frequently Asked Questions

• Q: Can these bars be used in racks larger than 19 inches?
  A: The bars are specifically sized for standard 19‑inch racks. For wider racks, additional or alternative equipotential bonding solutions should be considered.
• Q: Are the grounding cables suitable for high‑current applications?
  A: Yes, the included copper cables (2.5 mm²) provide ample current capacity for typical data center grounding needs.
• Q: Do I need to install a separate bonding rod?
  A: The bars themselves serve as the primary equipotential path; however, connecting them to an external grounding electrode or bonding rod is recommended for optimal safety.
• Q: How do I ensure proper torque on mounting screws?
  A: Use a calibrated torque wrench set to 10 Nm (or the manufacturer’s specification) to avoid over‑tightening or under‑tightening.

Conclusion

The Digitus 820 mm Potential Equalization Bars with Grounding Kit provide a robust, compliant, and easy-to-install solution for equipotential bonding in 19‑inch server and network racks. Their copper construction, extensive connection points, and integrated grounding kit make them an essential component for safeguarding critical IT infrastructure against electrostatic hazards and ensuring uninterrupted operation.