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by Cisco
Product Line: Cisco Nexus 7000 Series
Product Type: DC Power Supply Module
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Original price $0.00 - Original price $0.00
Original price
$0.00 - $0.00
Current price $0.00
Title: Surplus

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Product Description

The N7K-DC-3KW is a 3.0 KW power supply module designed specifically for DC environments, offering scalability from 1500 W to 3000 W and supporting hot swap functionality for uninterrupted operation. It features dual inputs, ensuring a reliable power supply with an efficiency of more than 91%, and is compatible with Cisco Nexus 7000 Series Switches. This module operates on a -48 VDC Nominal input voltage at 37 A in North America, with a capacity to handle up to 40A for each DC input, and maintains output stability with holdup times of 8 ms for half load and 4 ms for full load.

FAQs for the N7K-DC-3KW

  • What is the power rating of the device?
    The device has a power rating of 3.0 KW.
  • Can this hardware support hot swapping?
    Yes, hot swap support is available.
  • What is the scalability range of the device?
    Scalability ranges from 1500 W to 3000 W.
  • Does the product come with a power cable?
    No, a power cable is not included.
  • What is the efficiency rating?
    Efficiency is more than 91%.
  • Is the hardware compatible with Cisco Nexus 7000 Series Switches?
    Yes, it is compatible with Cisco Nexus 7000 Series Switches.
  • Can the device operate in mixed DC and AC environments?
    Yes, mixed DC and AC operation is supported.
  • What software releases is the hardware compatible with?
    It is compatible with Cisco® NX-OS Software Release 6.1.2 or later.
  • What are the output holdup times for half and full load?
    The output holdup time is 8 ms for half load and 4 ms for full load.
  • What are the operating temperature ranges?
    The minimum operating temperature is 0 °C and the maximum is 40 °C.

Product Review

The CISCO N7K-DC-3KW power supply unit, compatible with Cisco Nexus 7000 Series Switches, offers scalability from 1500W to 3000W and supports hot swapping, enhancing operational flexibility and minimizing downtime. However, the lack of an integrated locking latch could raise concerns about secure connections in vibrational environments. Additionally, while the power supply boasts an efficiency of over 91%, the absence of a power cable and the requirement for purchasing it separately might inconvenience some users.


The CISCO N7K-DC-3KW is a specialized power supply module designed to cater to the needs of data center environments, specifically engineered for Cisco Nexus 7000 Series Switches. This power supply offers a scalable power output ranging from 1500 W to 3000 W, ensuring that it can adequately support the varying power demands of network infrastructure. Its primary focus is on delivering efficient power management and reliability for critical network operations. With a power rating of 3.0 KW and the capability to operate in both DC environments and mixed DC and AC operations, the CISCO N7K-DC-3KW stands out for its versatility. It supports hot swapping, allowing for maintenance or upgrades without interrupting network services. The absence of an integrated locking latch simplifies the installation process, though it requires a tightening torque between 15 in. per lb (minimum) and 40 in. per lb (maximum) to ensure secure connections. This power supply module does not come with a power cable, allowing network administrators to select cables that best fit their specific requirements. It features two inputs for connectivity, with each isolated input stage providing a -48 VDC connection in North America and a -60 VDC nominal at 30 A in other regions. The DC input current is rated at 40A for each DC input at -48 VDC input voltage, emphasizing its capacity to handle high power demands. Efficiency is a key attribute of the CISCO N7K-DC-3KW, with an operational efficiency of more than 91%. This high efficiency rate contributes to reduced operational costs and a lesser environmental impact, making it a considerate choice for eco-conscious enterprises.
  • Software compatibility with Cisco® NX-OS Software Release 6.1.2 or later ensures seamless integration and reliable performance within the Cisco ecosystem.
  • Output holdup times of 8 ms for half load and 4 ms for full load guarantee stable power delivery during short interruptions, minimizing the risk of system shutdowns or failures.
  • Designed to operate within a wide range of temperatures, from 0 °C to 40 °C, and humidity levels from 10% to 90% (noncondensing), the CISCO N7K-DC-3KW is built to withstand challenging operating conditions.
The dimensions of this power supply stand at 1.75 x 3.95 x 22 inches, making it a compact yet powerful solution that can easily fit into various network configurations without requiring excessive space. Weighing in at 11 lbs, it strikes a balance between sturdiness and manageability. Grounding is achieved via the system chassis, ensuring safety and stability in its operation. For storage, it can withstand temperatures from -40 °C to 85 °C and nonoperating humidity levels from 10% to 95% (noncondensing), showcasing its durability even when not in active use. This resilience against environmental extremes ensures that the power supply remains reliable over time, ready to support critical network operations whenever needed. In conclusion, the CISCO N7K-DC-3KW is a comprehensive power solution for Cisco Nexus 7000 Series Switches, offering scalability, efficiency, and reliability to meet the demands of modern data centers and networking environments.


Part NumberN7K-DC-3KW
Power Output3 Kilowatts
Environment CompatibilityDirect Current (DC) Systems
Adjustable Power RangeFrom 1500 Watts to 3000 Watts
Replaceable While OperationalSupported
Input CountTwo
Included Power CableNot Included
Operational EfficiencyAbove 91%
Device CompatibilityCompatible with Nexus 7000 Series
Support for DC/AC Power MixSupported
Presence of Securing MechanismNot Present
Recommended Torque SpecificationsMinimum of 15 in-lb, Maximum of 40 in-lb
DC Input ConnectionSingle -48 VDC Connection per Input Stage
Required SoftwareCisco® NX-OS, Version 6.1.2 or Newer
Stability Period at 50% Load8 Milliseconds
Stability Period at 100% Load4 Milliseconds
Dimensions1.75 x 3.95 x 22 Inches
Unit Weight11 Pounds
Grounding MethodThrough the System Chassis
Input Voltage Specification-48 VDC at 37 A and -60 VDC at 30 A for North America
Current per DC Input40 A at -48 VDC
Lowest Operating Temp0 Degrees Celsius
Highest Operating Temp40 Degrees Celsius
Humidity Range During Operation10% to 90%, Non-condensing
Temperature Range for StorageFrom -40 °C to 85 °C
Humidity Range During Storage10% to 95%, Non-condensing

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