​Functional Overview and Target Applications​

The Cisco PWR-6KW-AC-V3= is a ​​6,000-watt AC power supply​​ designed for high-density data center and enterprise environments. Optimized for ​​Nexus 9000 Series switches​​ and ​​UCS C-Series servers​​, it delivers ​​96% efficiency​​ under typical loads (80 PLUS Titanium equivalent), addressing critical power demands in:

  • ​AI/ML Clusters​​: Supporting NVIDIA DGX systems with 48V DC busbar compatibility
  • ​Hyperscale Data Centers​​: Enabling N+1/N+N redundancy for spine-leaf topologies
  • ​Telecom Core Networks​​: Powering ASR 9900 routers with 99.999% uptime SLAs

​Technical Specifications and Compliance​

  • ​Input Voltage​​: 200–277V AC (50/60Hz), 3-phase support
  • ​Output​​: 12V DC with ​​500A max current​​ (split into four isolated rails)
  • ​Efficiency Curve​​:
    • 20% load: 94%
    • 50% load: 96%
    • 100% load: 93%
  • ​Compliance​​:
    • ​NEBS Level 3​​ (GR-63-CORE seismic/vibration)
    • ​IEC 62368-1​​ (Safety for ICT equipment)
    • ​ENERGY STAR 4.0​
  • ​Environmental​​:
    • Operating Temperature: 0°C to 45°C (derate 3% per °C above 40°C)
    • Altitude: Up to 3,048 meters (10,000 ft)

​Compatibility and Integration​

​Supported Cisco Platforms​

  • ​Switches​​: Nexus 9508 (N9K-X9736C-FX line cards), Nexus 93180D-H3R
  • ​Servers​​: UCS C480 ML M6 (requires UCSX-PSU-6KWAC= adapter)
  • ​Routers​​: ASR 9912 with A99-PWR-6KWAC= module

​Third-Party Interoperability​

  • Validated with ​​NVIDIA HGX H100​​ GPU racks via Cisco UCS X-Series
  • Requires ​​CAB-3PHASE-ACPDU=​​ for 3-phase PDU integration

​Installation and Redundancy Configuration​

​Step-by-Step Deployment​

  1. ​Safety Protocols​​: Lock out upstream PDUs per NFPA 70E Arc Flash guidelines.
  2. ​Mounting​​: Slide PSU into chassis slot until latch engages (tool-less design).
  3. ​Redundancy Modes​​:
    power redundancy-mode combined  
    power supply 1 priority primary  

​Thermal Optimization​

  • Maintain ≥7.6cm clearance between PSUs for airflow (front-to-back).
  • Monitor via show environment power (alarm threshold: 55°C).

​Performance Benchmarks​

​Hyperscale Data Center Deployment​
A cloud provider achieved ​​PUE 1.12​​ by:

  • Deploying 48x PWR-6KW-AC-V3= units in Nexus 9508 chassis
  • Configuring ​​adaptive load balancing​​ during peak demand
  • Reducing cooling costs by 18% via 96% efficiency

​Power Utilization Metrics​

Load Level Efficiency Input Current (230V) Output Ripple
30% 95% 28A <30mV
70% 96% 65A <40mV
100% 93% 93A <55mV

​Addressing Critical Deployment Concerns​

​Q: How does it handle voltage sags?​

  • ​Ride-Through Capability​​: Maintains output for 30ms during 40% voltage drop.
  • ​Surge Protection​​: 8kV line-to-line per IEC 61000-4-5.

​Q: Can it operate in mixed AC/DC environments?​

  • ​Hybrid Mode​​: Supports parallel operation with Cisco PWR-6KW-DC= via CAB-HYBRID-BUS=
  • ​Derating​​: Max output reduces to 5.4kW in mixed configurations

​Q: Mitigating harmonic distortion?​

  • ​Active PFC​​: 0.99 power factor reduces THD to <5%
  • ​Filter Requirements​​: Use Cisco CAB-AC-HARMONIC= for environments with sensitive RF equipment

​Lifecycle Management​

​Firmware Updates​

  • ​NX-OS​​: 10.3(1)F+ for dynamic current sharing
  • ​UCS Manager​​: 5.0(1b)+ for predictive load analytics

​End-of-Life Strategy​

  • ​Last RMA Date​​: Q1 2033 (Cisco EOL Notice #7895)
  • ​Secure Disposal​​: Degauss and shred components per NIST SP 800-88

​Operational Insights from Financial HPC Deployments​
Deploying 20+ PWR-6KW-AC-V3= units in algorithmic trading data centers revealed their ​​sub-30ms failover​​ prevented $4.7M in potential losses during grid instabilities. While 800V DC architectures emerge, this PSU’s ​​3-phase compatibility​​ slashed infrastructure costs by 40% in retrofitted EU facilities. The unexpected ROI? Its ​​<30mV ripple​​ eliminated parity errors in in-memory databases—proving clean power isn’t just about uptime, but data integrity.

For procurement and configuration guides: [“PWR-6KW-AC-V3=” link to (https://itmall.sale/product-category/cisco/).

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