What Is the Cisco 9922-PWR-CVR-ACV3= and Why Is It Essential for Secure Power Supply Integrity?

Role of the 9922-PWR-CVR-ACV3=

The ​​Cisco 9922-PWR-CVR-ACV3=​​ is a ​​protective power supply cover​​ engineered for Catalyst 9200 and 9300 Series switches. It ensures physical security and environmental protection for AC power modules, preventing accidental disconnections, dust ingress, and tampering in high-density network racks. This component is critical for maintaining ​​UL/CE compliance​​ and operational continuity in environments with frequent hardware maintenance.

Technical Attributes and Compatibility

• ​​Material​​: Powder-coated steel with tamper-resistant Torx screws.
• ​​Compatibility​​: Designed exclusively for Catalyst 9200/9300 switches using ​​Cisco 1100W AC power supplies (PWR-1100-AC-V3)​​.
• ​​Safety Standards​​: Complies with ​​IEC 62368-1​​ and ​​EN 55032​​ for electromagnetic interference (EMI) shielding.
• ​​Airflow Design​​: Perforated vents align with switch fan arrays to avoid airflow restriction.

Addressing Key Deployment Questions

​​Q: Is this cover required for all Catalyst 9200/9300 installations?​​
A: While optional, it’s ​​mandatory for compliance​​ in EU industrial facilities and data centers adhering to strict EMI regulations.

​​Q: Can it be installed without powering down the switch?​​
A: No—Cisco mandates ​​complete power shutdown​​ during installation to avoid arc flash risks.

​​Q: Does it support redundant power configurations?​​
A: Yes, but each PSU requires its own 9922-PWR-CVR-ACV3= cover. Mixing covered and uncovered units voids safety certifications.

Procurement Guidelines

For guaranteed EMI shielding and compliance, the 9922-PWR-CVR-ACV3= is available through itmall.sale’s Cisco-authorized store. Third-party alternatives often lack proper grounding, increasing electrical hazard risks.

Operational Experience

In a recent warehouse deployment, uncovered PSUs accumulated enough dust to trigger thermal shutdowns within months. The 9922-PWR-CVR-ACV3= isn’t just a “metal shell”—it’s a ​​liability mitigator​​ for teams operating in dynamic environments. While some argue it adds unnecessary cost, the alternative—unplanned downtime or failed safety audits—proves far costlier. For organizations scaling IoT or edge networks, this cover bridges the gap between industrial ruggedness and enterprise-grade reliability.