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by Cisco
Product Line: Cisco Nexus Series
Product Type: Switch Power Supply
Sold out
Original price $0.00 - Original price $509.00
Original price
$0.00 - $509.00
Current price $0.00
Title: Surplus

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Product Description

The N7K-AC-3KW power supply unit offers hot swap support and an efficiency of more than 90%, designed for seamless integration with the Cisco Nexus 7000 4-Slot Switch. It delivers a maximum output of 1400 W at 110 VAC and 3000 W at 220 V, with an operational input voltage range from 90 VAC to 264 VAC. This unit features internal fault monitoring, a built-in cooling fan, and supports Cisco NX-OS Software Release 6.1(2) and later, ensuring reliable performance and compatibility with current network infrastructures.

Key Feature for the N7K-AC-3KW

  • What is the maximum output power of the device at 110 VAC and 220 V?
    The maximum output at 110 VAC is 1400 W, and at 220 V, it is 3000 W.
  • Does the device support hot swapping?
    Yes, the device supports hot swapping.
  • What are the efficiency ratings of this power supply unit?
    The efficiency of the unit is more than 90%.
  • Can this power supply be used with a Cisco Nexus 7000 4-Slot Switch?
    Yes, it is compatible with the Cisco Nexus 7000 4-Slot Switch, supporting up to 4 units.
  • What software versions are compatible with this hardware?
    The hardware is compatible with Cisco NX-OS Software Release 6.1(2) and later versions.
  • What are the physical dimensions and weight of the unit?
    The unit measures 1.6 in. by 3.95 in. by 22 in. and weighs 5 lbs.
  • What is the input voltage range and frequency for the power supply?
    The input voltage range is 90 VAC to 264 VAC, with a frequency range of 47 to 63 Hz.
  • What type of cooling mechanism is used in the device?
    The device uses an integrated cooling fan.
  • What are the operational temperature limits for the power supply?
    The operating temperature range is from 0 °C to 40 °C.
  • How does the device handle internal fault monitoring?
    Yes, the device includes internal fault monitoring capabilities.

Product Review

The Cisco N7K-AC-3KW power supply offers high efficiency, exceeding 90%, and supports hot swapping, facilitating easy maintenance without system downtime. It delivers maximum outputs of 1400W at 110VAC and 3000W at 220V, suitable for the Cisco Nexus 7000 4-Slot Switch, but its performance is limited by a single input, which could be a bottleneck for systems requiring higher power redundancy. Additionally, the unit includes internal fault monitoring and is compatible with Cisco NX-OS Software Release 6.1(2) and later, ensuring reliable operation and easy integration into existing network infrastructures.


The Cisco N7K-AC-3KW power supply unit is designed to deliver efficient and reliable power to the Cisco Nexus 7000 4-Slot Switch. This unit is capable of providing a maximum output of 1400W when connected to a 110 VAC power source and up to 3000W with a 220 V power source, ensuring that it can support the power needs of your networking hardware in various global regions. With an efficiency greater than 90%, the N7K-AC-3KW is engineered to optimize power use, reducing operational costs and the environmental impact. This power supply features hot swap support, allowing for maintenance or upgrades without shutting down the entire system, minimizing downtime. The internal fault monitoring capability ensures the early detection of potential issues, contributing to the system's overall reliability. Compatibility with the Cisco Nexus 7000 4-Slot Switch, up to four units, and Cisco NX-OS Software Release 6.1(2) and later, ensures that this PSU can integrate seamlessly into existing network infrastructures. In terms of physical specifications, the N7K-AC-3KW measures 1.6 inches in height, 3.95 inches in width, and 22 inches in depth, with a weight of 5 pounds. Its design is compact and efficient, fitting well into data center spaces without occupying excessive room. The unit operates within a minimum input AC voltage of 90 VAC and a maximum of 264 VAC, with an input frequency range of 47 to 63 Hz. The maximum input current is 16 A, whether at nominal 110 VAC or 220 VAC, utilizing an IEC 320-C20 input receptacle. Key specifications include:
  • BTUs: 11,400 BTUs per hour at 3000W and 5,560 BTUs per hour at 1400W.
  • Output holdup time: 20 ms maximum.
  • Cooling: Integrated fan.
Operating conditions for the N7K-AC-3KW are designed to be versatile, with a minimum operating temperature of 0 °C and a maximum of 40 °C. It can be stored in temperatures ranging from -40 °C to 85 °C. Relative operating humidity is rated at 10% to 90% noncondensing, and nonoperating humidity from 10% to 95% noncondensing, ensuring that the unit can perform in a variety of environmental conditions. The integrated cooling fan plays a crucial role in maintaining optimal operating temperatures, further enhancing the reliability of this power supply unit. Furthermore, the unit's design and build quality ensure that it can withstand the rigors of continuous operation in demanding data center environments. In summary, the Cisco N7K-AC-3KW power supply unit is a critical component for ensuring the efficient, reliable operation of Cisco Nexus 7000 4-Slot Switches. Its high efficiency, robust power output capabilities, and support for hot swapping make it an essential part of a high-performance networking infrastructure. With its compatibility with Cisco NX-OS software and internal fault monitoring, it offers a blend of performance, reliability, and ease of maintenance that network administrators rely on.


Item NumberN7K-AC-3KW
Hot Swap CapabilitySupported
Operational EfficiencyAbove 90%
Input CountSingle
Power Output at 110 VAC1400 Watts
Power Output at 220 V3000 Watts
Error DetectionEnabled
Compatible ChassisCompatible with Cisco Nexus 7000 4-Slot Switch (maximum of 4)
Supported SoftwareCompatible with Cisco NX-OS, version 6.1(2) or newer
Unit Height1.6 inches
Unit Width3.95 inches
Unit Depth22 inches
Unit Weight5 pounds
Lowest Input Voltage90 VAC
Highest Input Voltage264 VAC
Input Frequency Spectrum47 Hz to 63 Hz
Maximum Input Current16 A at 110 VAC or 220 VAC nominal
Power Input ConnectorIEC 320-C20
Heat Dissipation11,400 BTUs/hour at 3000W; 5,560 BTUs/hour at 1400W
Output Stability Time20 milliseconds (max)
Cooling MechanismBuilt-in Fan
Operating Temperature Range0 °C to 40 °C
Temperature Range for Storage-40 °C to 85 °C
Humidity Range in Operation10% to 90%, non-condensing
Humidity Range during Storage10% to 95%, non-condensing

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