C9K-PWR-1600WDC-R – 1600W DC PSU – Catalyst 9500 C9500-32C

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C9K-PWR-1600WDC-R Description

The C9K-PWR-1600WDC-R is a Cisco Catalyst 9500 Series 1600W DC power supply module for -48 VDC telecom and data center racks that host the C9500-32C switch. The module accepts -40 to -72 VDC at up to 40A at -48 VDC, with outputs of 12V main at 133A and 12V standby at 3A at 92 percent typical efficiency. The module is listed only for the C9500-32C, and the C9500-48Y4C and C9500-24Y4C do not support 1600W supplies.

Quick Specs

Parameter

Specification

Product ID

C9K-PWR-1600WDC-R

Product type

DC power supply module

Cisco ordering description

1600W DC Power Supply

Compatible switch model

C9500-32C

Power max rating

1600W

Input voltage range

DC -40 to -72 VDC

Input current

DC 40A max at -48VDC when fully loaded

Power supply efficiency

92 percent typical

Output ratings

12V main at 133A; 12V standby at 3A

Output holdup time

5 ms minimum for system

Input receptacle

Amphenol C10-638976-000

Power cord rating

DC 70A

Application Scenarios

DC-Fed Core Switch In A Telecom Room

In a telecom equipment room with a -48 VDC plant, the module powers a C9500-32C switch directly from the DC bus without an AC conversion stage.

Redundant Supply In A Data Center Rack

A data center rack running two DC feeds can place one module in each power bay of the C9500-32C, so the switch stays powered if one feed is lost.

Product Comparison

Parameter

C9K-PWR-1600WDC-R

C9K-PWR-1600WAC-R

C9K-PWR-930WDC-R

Power max rating

1600W

1600W

930W

Input voltage range

DC -40 to -72 VDC

90 to 140 VAC and 180 to 264 VAC, 47 to 63 Hz

DC -40 to -72 VDC

Output ratings

12V main at 133A; 12V standby at 3A

12V main at 133A; 12V standby at 3A

12V main at 54A; 12V standby at 3A

Input receptacle

Amphenol C10-638976-000

AC IEC 60320 C16

Molex Minifit 44540-1001

Power cord rating

DC 70A

AC 15A

DC 40A

Supported Catalyst 9500 model

C9500-32C

C9500-32C

C9500-32QC, C9500-48Y4C, and C9500-24Y4C

C9K-PWR-1600WDC-R is the DC-input 1600W supply for C9500-32C, taking -40 to -72 VDC through an Amphenol C10-638976-000 receptacle with a DC 70A cord rating, while C9K-PWR-1600WAC-R is the 1600W AC version for the same switch on 90 to 140 VAC and 180 to 264 VAC, so AC-fed racks order C9K-PWR-1600WAC-R instead. C9K-PWR-930WDC-R is a 930W DC supply on the same -40 to -72 VDC range with a Molex Minifit 44540-1001 receptacle and a DC 40A cord rating, listed for C9500-32QC, C9500-48Y4C and C9500-24Y4C, so those switches need C9K-PWR-930WDC-R rather than C9K-PWR-1600WDC-R.

Ordering Checklist

  • Catalyst 9500 host: Order for C9500-32C, the Catalyst 9500 model listed with 1600W AC and 1600W DC power supply options. The 1600W DC supply is listed for the C9500-32C power bays only.
  • Hosts without 1600W support: Use C9K-PWR-650WAC-R or C9K-PWR-930WDC-R on C9500-48Y4C and C9500-24Y4C, not a 1600W AC or DC supply. The power supply matrix marks 1600W AC and DC as unsupported on these two switches.

Specifications

Parameter Specification Parameter Specification
Product ID C9K-PWR-1600WDC-R Product type DC power supply module
Cisco ordering description 1600W DC Power Supply Compatible switch model C9500-32C
FRU support Field-replaceable and hot-swappable power supply module LED status support Bi-color green and amber LED for 1600W AC/DC PSU status
Output ratings 12V main at 133A; 12V standby at 3A Output holdup time 5 ms minimum for system
Input receptacle Amphenol C10-638976-000 Redundant ordering option C9K-PWR-1600WDCR/2
Power supply slots Two AC or DC power supply slots Supported PSU combinations Two AC, two DC, AC-DC, or one installed PSU with blank cover in unused slot
Power supply efficiency 92 percent typical PSU hardware features PSU fan, DC input connector, PSU LED, release handle, release latch, and retainer clips
Input voltage range DC -40 to -72 VDC Input current DC 40A max at -48VDC when fully loaded
Power max rating 1600W Power cord rating DC 70A
BTU with C9500-32C 3,709 BTU/hr

Quality Certifications

Customer Reviews

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    Kayla Perez
    Posted on 26/03/2026
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    Layer23 stays engaged after the sale. That builds long-term trust.

    Brenda Rodriguez
    Posted on 19/12/2025
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    5.0

    Layer23 has my full endorsement as a hardware supplier.

    Jeremy Campbell
    Posted on 05/12/2025
    Verified Buyer
    5.0

    We measure deployment success in zero rollbacks. This one fits the bill.

Questions & Answers

  • Which Catalyst 9500 switch takes C9K-PWR-1600WDC-R?

    C9K-PWR-1600WDC-R is listed for the C9500-32C-A and C9500-32C-E power bays only. The C9500-48Y4C-A, C9500-48Y4C-E, C9500-24Y4C-A and C9500-24Y4C-E do not support 1600W supplies, and the power supply matrix marks 1600W AC and DC as unsupported on both.
  • Can C9K-PWR-1600WDC-R be combined with an AC supply in a C9500-32C-A or C9500-32C-E?

    Yes. The two power supply slots accept two AC, two DC, an AC-DC pair, or one installed supply with a blank cover in the unused slot. Each module is field-replaceable and hot-swappable.
  • Can C9K-PWR-1600WDC-R power a Catalyst 9500X switch such as C9500X-28C8D-A?

    No. C9K-PWR-1600WDC-R is listed only for the C9500-32C-A and C9500-32C-E. The Catalyst 9500X models take C9K-PWR-1500WDC, and the 950W PWR-C4-950WDC-R covers other Catalyst 9500 models, per the public Cisco DC power supply listings. Check the model before ordering.
  • How much heat does C9K-PWR-1600WDC-R add to a C9500-32C-A or C9500-32C-E?

    Cisco lists 3,709 BTU/hr with these switches. Use that figure when sizing rack cooling in a telecom room. With two supplies installed they share the load, so the heat is divided between the two modules rather than concentrated in one.
  • Which PID orders the redundant C9K-PWR-1600WDC-R supply?

    The redundant ordering option is C9K-PWR-1600WDCR/2. It is the second-supply order line for a switch with two power supply slots. An empty slot needs a blank cover, because each slot must hold either a supply or a cover.
  • What does the status LED on C9K-PWR-1600WDC-R show?

    The supply has a bi-color green and amber LED for status. Green shows a healthy supply and amber flags a fault. The module also has a PSU fan, a DC input connector, a release handle, a release latch and retainer clips for the DC cord.

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DataSheet Downloads

  • C9K-PWR-1600WDC-R Datasheet