​Understanding the CAB-250V-10A-IS=​

The ​​Cisco CAB-250V-10A-IS=​​ is a ​​10-amp, 250V AC power cable​​ engineered for Cisco’s high-power networking and data center equipment. Designed to meet stringent safety and durability standards, it ensures reliable power delivery in environments where voltage stability and fire resistance are non-negotiable.


​Core Technical Specifications​

  • ​Connectors​​: ​​IEC 60320 C15​​ (device-side) to ​​C16​​ (outlet-side), rated for ​​250V/10A​​ continuous load.
  • ​Temperature Tolerance​​: ​​105°C-rated jacket​​ (IEC 60335-1 compliant), preventing melting in high-heat environments.
  • ​Length​​: ​​2 meters (6.56 feet)​​, balancing reach and minimal voltage drop.
  • ​Compatibility​​: Certified for ​​Cisco UCS servers, Catalyst 9500 switches​​, and ​​ASR 9000 routers​​ with C15/C16 inlets.

​Key Applications and Use Cases​

​Scenario​ ​Purpose​
Data Center Racks Powers ​​high-density PoE++ switches​​ like C9300-48UXM.
Industrial Deployments Resists oil, dust, and vibration in factory settings.
Redundant Power Systems Connects to PDUs in ​​N+1 power setups​​ without overheating.

​CAB-250V-10A-IS= vs. Generic C15/C16 Cables​

​Factor​ ​CAB-250V-10A-IS=​ ​Generic Cable​
Safety Certification UL/CE/TUV certified Often lacks multi-region approvals
Jacket Material Flame-retardant PVC (FT4 rated) Standard PVC (higher flammability)
Warranty Compliance Maintains Cisco device warranties May void warranties

​Installation and Maintenance Best Practices​

  • ​Avoid Daisy-Chaining​​: Directly connect to a PDU or UPS; ​​power strips are not recommended​​ for 10A loads.
  • ​Strain Relief​​: Use ​​cable clamps​​ to prevent connector damage in vibrating environments.
  • ​Inspection Routine​​: Check for ​​jacket cracks or discoloration​​ every 6 months in high-heat zones.

​Cost vs. Risk Considerations​

While third-party cables are cheaper, the CAB-250V-10A-IS= eliminates risks like ​​thermal runaway​​ or ​​compliance violations​​. For enterprises seeking cost savings without compromising safety, certified refurbished units are available through the “CAB-250V-10A-IS=” link, which includes UL recertification and a 90-day warranty.


​Lessons from High-Stakes Environments​

During a refinery network upgrade, generic cables failed under intermittent 9A loads, tripping breakers and causing switch reboots. Replacing them with CAB-250V-10A-IS= cables resolved the instability—underscoring that in mission-critical setups, every component must exceed operational demands. For engineers, specifying this cable isn’t about cost—it’s about eliminating single points of failure in the power chain.

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