PWR-3900-AC/2, Cisco 3900 Series Power Supply, AC Input/Redundant/Hot-swappable

  • Brand: Cisco
  • Model: PWR-3900-AC/2
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List Price: $858.00
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$276.25
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    Overview

    Cisco PWR-3900-AC/2 Overview

    The Cisco PWR-3900-AC/2 is an enterprise-class AC power supply designed for Cisco 3900 Series routers, delivering stable 24 V output at up to 15 A for demanding branch and campus networks across Asia, Europe, Africa, and North America. This hot-swappable plug-in module supports 1+1 redundancy and operates on global 100–240 VAC, 50/60 Hz mains, making it ideal for distributors, SMB integrators, and end users who require high efficiency, long MTBF, and certified reliability for business-critical routing infrastructures.

    Product Highlights

    24 V
    Output Volt
    15 A
    High Current
    1+1
    Redundant PS

    Product Applications Scenarios

    Data Center
    The PWR-3900-AC/2 ensures stable 24 V power to aggregation routers in edge rows, reducing unplanned downtime by supporting hot-swappable replacement and 1+1 redundancy for critical services.
    Enterprise Network
    In corporate campuses and regional offices, it keeps Cisco 3900 routers online during maintenance, cutting service interruption windows and simplifying global AC deployment for IT teams.
    Service Providers
    Service providers deploy this supply in POP and aggregation sites to power access routers with high 90% efficiency and long 200,000-hour MTBF, reducing truck rolls and OPEX.

    Product Features Comparison

      Cisco Cisco Cisco Cisco
    Model PWR-3900-AC/2, Cisco 3900 Series Power Supply, AC Input/Redundant/Hot-swappable PWR-C45-4200ACV/2, Cisco Catalyst 4500 Power Supply, 4200W AC Dual Input/Data+PoE PWR-2921-51-DC=, Cisco 2900 Series Power Supply, DC Input/Hot-swappable/Redundant Support 12000/6-DC-PEM, Cisco 12000/6-DC-PEM, Power Supply, 6-slot, Enhanced DC PEM, For 12406
    Brand Cisco Cisco Cisco Cisco
    Compatible Models Cisco 3903 Series n/a Cisco 2921, 2951 Cisco 12000 Series Routers
    Accessory Type Power Supply n/a DC Power Supply Power Supply
    Connector Type n/a n/a Terminal block n/a
    Mounting Method Plug-in module n/a Rack-mountable n/a
    Certification RoHS, UL, CE, FCC n/a FCC, UL, CE n/a

    Optional Add-ons

    Model Number Description
    PWR-2921-51-DC= Cisco DC Power Supply for 2921/2951 routers, ideal as DC alternative or backup.
    CAB-ACS-16 Cisco 16A Swiss AC power cord for high-current enterprise and carrier racks.
    CAB-C15-ACE Cisco European C15 AC power cord for data center and enterprise equipment.

    Quality Certifications

    • ISO 14001
    • ISO 9001
    • RoHS
    • REACH
    • CE
    • FCC
    Specification

    Cisco PWR-3900-AC/2 Specification

    Model
    PWR-3900-AC/2
    Brand
    Cisco
    Compatible Series
    Cisco 3903 Series
    Type
    Power Supply
    Input Voltage
    100–240 VAC
    Frequency
    50/60 Hz
    Output Voltage
    24 V
    Output Current
    15 A
    Redundancy
    Supported (1+1)
    Hot Swappable
    Yes
    Efficiency
    90%
    Cooling Method
    Internal fan
    Form Factor
    Plug-in module
    Dimensions (H × W × D)
    44.5 × 423 × 280 mm
    Operating Temperature
    0°C to 40°C (32°F to 104°F)
    Storage Temperature
    -40°C to 70°C (-40°F to 158°F)
    Humidity Range
    0% to 95% (non-condensing)
    MTBF
    200,000 hours
    Compliance
    RoHS, UL, CE, FCC
    Weight
    kg

    Get more information

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    Quality Certifications

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    Q&A

    Questions & Answers

    What accessories are available for the PWR-3900-AC/2?

    Standard accessories include mounting brackets and power cables for various configurations.

    How does the PWR-3900-AC/2 compare with other Cisco power supplies?

    The PWR-3900-AC/2 offers tailored compatibility and optimized performance for the Cisco 3903 Series routers.

    Can the PWR-3900-AC/2 be used with routers other than the Cisco 3903 Series?

    It is specifically designed for Cisco 3903 Series and may not be compatible with other router models.

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