​​Functional Overview and Target Deployments​​

The Cisco PWR-C1-1900WAC-P= is a ​​1,900-watt AC power supply​​ engineered for Cisco’s high-density chassis platforms, including Nexus 9500 Series switches and UCS C-Series servers. Designed for ​​N+1/N+N redundancy​​, it supports mission-critical workloads with ​​94% efficiency​​ (80 PLUS Platinum equivalent), addressing:

• ​​Hyperscale Data Centers​​: Powering spine-leaf architectures with 100G/400G line cards
• ​​AI/ML Infrastructure​​: Delivering stable power to GPU/TPU clusters in UCS C480 ML systems
• ​​5G Mobile Core​​: Ensuring uptime for ASR 9000 routers in edge compute nodes

​​Technical Specifications and Compliance​​

• ​​Input Voltage​​: 200–277V AC (50/60Hz, 3-phase compatible)
• ​​Output​​: 12V DC, 158A max (split into isolated 12V/5V/3.3V rails)
• ​​Efficiency Curve​​:
  • 20% load: 92%
  • 50% load: 94%
  • 100% load: 91%
• ​​Compliance​​:
  • ​​NEBS Level 3​​ (GR-63-CORE seismic/vibration)
  • ​​IEC 62368-1​​ (Safety)
  • ​​ENERGY STAR 4.0​​
• ​​Environmental​​:
  • Operating Temperature: 0°C to 45°C (derate 2.5% per °C above 40°C)
  • MTBF: 300,000 hours (MIL-HDBK-217F)

​​Compatibility and Platform Integration​​

​​Supported Cisco Systems​​

• ​​Chassis​​: Nexus 9504/9508 (N9K-X9736C-FX), UCS C480 ML M6
• ​​Line Cards​​: N9K-X9636C-R, N9K-X9716D-GX (NX-OS 10.3.1+)
• ​​Management​​: Cisco UCS Manager 5.0+, Nexus Dashboard 3.0+

​​Redundancy Modes​​

• ​​Grid Redundant​​: Dual AC feeds with automatic failover (<10ms)
• ​​Load Sharing​​: Active-active current balancing across 4x PSUs

​​Performance Benchmarks​​

​​Data Center Power Efficiency​​
A Tier IV facility reduced PUE from ​​1.48 to 1.22​​ by:

• Deploying 16x PWR-C1-1900WAC-P= units in Nexus 9508 chassis
• Configuring ​​adaptive load shedding​​ during peak demand
• Leveraging ​​Cisco EnergyWise​​ for dynamic power capping

​​Output Stability Metrics​​

​​Addressing Critical Deployment Concerns​​

​​Q: How to prevent overloading in mixed chassis configurations?​​

• ​​Power Budgeting​​:

  hardware profile power max 7600  
  power redundancy-mode combined  

  • Allocate 1,900W per PSU slot with 4x units

​​Q: Thermal management in dense racks?​​

• ​​Cooling Requirements​​:
  • Front-to-back airflow (≥25 CFM per PSU)
  • Monitor via show environment power (alarm at 50°C)
• ​​Hot-Swap Protocol​​: Replace failed units within 2 minutes

​​Q: Firmware dependencies?​​

• ​​Minimum Versions​​:
  • NX-OS 10.2(3)F for current sharing
  • UCS Manager 5.1(2a) for predictive analytics

​​Installation and Optimization​​

​​Step-by-Step Deployment​​

1. ​​Safety​​: Lock out upstream PDUs per NFPA 70E.
2. ​​Mounting​​: Align PSU with chassis slot; engage latch until click.
3. ​​Validation​​: Check show power detail for “OK” status.

​​Cable Management Best Practices​​

• Use 10 AWG copper for 3-phase inputs (torque to 35 lb-in)
• Label circuits per TIA-606-C (e.g., PSU1-A, PSU1-B)

​​Lifecycle Management​​

​​Firmware Updates​​

• ​​PSU Controller​​: Update via Nexus install module firmware
• ​​Security Patches​​: Quarterly via Cisco Software Center

​​End-of-Life Strategy​​

• Last RMA Date: Q3 2032 (Cisco EOL Notice #7875)
• Secure Decommissioning:

  system secure erase crypto-keys  

​​Operational Insights from Financial Sector Deployments​​
Deploying 24x PWR-C1-1900WAC-P= units in algorithmic trading systems revealed their ​​sub-20ms failover​​ capability prevented $3.1M in potential losses during grid fluctuations. While 48V DC gains traction, this PSU’s ​​3-phase compatibility​​ reduced infrastructure costs by 28% in retrofitted EU data centers. The hidden advantage? Its ​​adaptive ripple suppression​​ eliminated parity errors in HFT storage arrays—proving that power quality directly impacts transactional integrity.

For procurement and validation: [“PWR-C1-1900WAC-P=” link to (https://itmall.sale/product-category/cisco/).