C9K-PWR-930WDC-R – 930W DC PSU – Catalyst 9500 High Performance

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C9K-PWR-930WDC-R Description

The C9K-PWR-930WDC-R is a Cisco Catalyst 9500 Series 930W DC power supply module for telecom and data center racks fed by a -48 VDC plant. The module accepts -40 to -72 VDC at up to 23A at -48 VDC, delivers 12V main at 54A plus 12V standby at 3A at 92 percent typical efficiency and connects through a Molex Minifit 44540-1001 receptacle. The module is listed for the C9500-32QC, C9500-48Y4C and C9500-24Y4C, and the 1600W supplies of the C9500-32C are not supported on these switches.

Quick Specs

Parameter

Specification

Product ID

C9K-PWR-930WDC-R

Product type

DC power supply module

Cisco ordering description

930W DC Power Supply

Compatible switch models

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

Power max rating

930W

Input voltage range

DC -40 to -72 VDC

Input current

DC 23A max at -48VDC when fully loaded

Power supply efficiency

92 percent typical

Output ratings

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

Output holdup time

8 ms minimum for system

Input receptacle

Molex Minifit 44540-1001

Power cord rating

DC 40A

Application Scenarios

DC Plant Power For An Aggregation Switch

In a telecom central office, the module feeds a C9500-32QC from the -48 VDC battery plant that already powers the rest of the rack.

Redundant DC Feeds In A Data Center

A data center with A and B DC feeds can place one module in each bay of a C9500-48Y4C or C9500-24Y4C, keeping the switch powered if one feed fails.

Product Comparison

Parameter

C9K-PWR-930WDC-R

C9K-PWR-650WAC-R

C9K-PWR-1600WDC-R

Power max rating

930W

650W

1600W

Input voltage range

DC -40 to -72 VDC

90 to 264 VAC, 47 to 63 Hz

DC -40 to -72 VDC

Input current

DC 23A max at -48VDC when fully loaded

6.8A max at 115VAC; 3.4A max at 230VAC

DC 40A max at -48VDC when fully loaded

Output ratings

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

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

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

Input receptacle

Molex Minifit 44540-1001

AC IEC 60320 C14

Amphenol C10-638976-000

Supported Catalyst 9500 models

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

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

C9500-32C

C9K-PWR-930WDC-R is the DC choice for C9500-32QC, C9500-48Y4C and C9500-24Y4C: it delivers 930W from a -40 to -72 VDC feed with up to 23A at -48 VDC, while C9K-PWR-650WAC-R delivers 650W from 90 to 264 VAC through an IEC 60320 C14 cord. AC-fed racks therefore use C9K-PWR-650WAC-R, and Cisco also lists AC and DC supplies in the same chassis. C9K-PWR-1600WDC-R is a 1600W DC supply listed only for C9500-32C and does not fit the three hosts of C9K-PWR-930WDC-R. A redundant pair is ordered as C9K-PWR-930WDC-R/2.

Ordering Checklist

  • Catalyst 9500 hosts: Order for C9500-32QC, C9500-48Y4C and C9500-24Y4C. This 930W DC supply is listed for these three High Performance models; the 1600W DC supply is not supported on them.

Specifications

Parameter Specification Parameter Specification
Product ID C9K-PWR-930WDC-R Product type DC power supply module
Cisco ordering description 930W DC Power Supply Compatible switch models C9500-32QC, C9500-48Y4C, C9500-24Y4C
Power supply slots Two AC or DC power supply slots FRU support Field-replaceable and hot-swappable power supply module
Supported PSU combinations Two AC, two DC, AC-DC, or one installed PSU with blank cover in unused slot Power max rating 930W
Input voltage range DC -40 to -72 VDC Input current DC 23A max at -48VDC when fully loaded
Power supply efficiency 92 percent typical Output ratings 12V main at 54A; 12V standby at 3A
Output holdup time 8 ms minimum for system Input receptacle Molex Minifit 44540-1001
Power cord rating DC 40A BTU with C9500-32QC 1,856 BTU/hr
BTU with C9500-48Y4C 1,856 BTU/hr BTU with C9500-24Y4C 1,484 BTU/hr
MTBF 3,008,280 hours PSU hardware features Power cord retainer, release handle, PSU fan, DC+ connector, DC- connector, and release latch
LED status support Green power status and amber power supply failure LEDs DC cable preparation Strip 0.75 in. (19 mm) from unstripped cable ends before connection
DC terminal mapping Negative cable to negative terminal and positive cable to positive terminal of the same DC source Redundant ordering option C9K-PWR-930WDC-R/2
Blank-cover requirement Unused power supply slot must retain the required blank cover

Quality Certifications

Customer Reviews

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    Amber Sullivan
    Posted on 17/04/2026
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    No issues to report. Everything went well.

    Julie Crawford
    Posted on 11/02/2026
    Verified Buyer
    5.0

    Customer-friendly policies extend well beyond the initial transaction.

    Lawrence Ramirez
    Posted on 14/12/2025
    Verified Buyer
    5.0

    Layer23 takes the guesswork out of vendor selection for us.

Questions & Answers

  • Which Catalyst 9500 switches take C9K-PWR-930WDC-R?

    C9K-PWR-930WDC-R is listed for the C9500-32QC-A, C9500-32QC-E, C9500-48Y4C-A, C9500-48Y4C-E, C9500-24Y4C-A and C9500-24Y4C-E. The 1600W supplies of the C9500-32C-A and C9500-32C-E are not supported on these switches. The module is field-replaceable and hot-swappable.
  • Can C9K-PWR-930WDC-R share a switch with an AC supply or run alone?

    Yes. The two power supply slots accept two AC, two DC, an AC-DC pair, or one supply with a blank cover. An unused slot must retain the required blank cover. The redundant ordering option is C9K-PWR-930WDC-R/2.
  • Is a second C9K-PWR-930WDC-R preselected when I configure a Catalyst 9500?

    Yes, the ordering guide preselects the second power supply, although the default build includes a single AC supply. For a DC build you must change the supply PID to C9K-PWR-930WDC-R. To remove the second supply, select C9500-SPS-NONE explicitly.
  • Which Catalyst 9500 hosts use C9K-PWR-930WDC-R as the DC supply, and which DC PIDs do other hosts use?

    C9K-PWR-930WDC-R is the DC supply listed for the High Performance Catalyst 9500 models that take 650W AC supplies. In the Cisco DC PID list, PWR-C4-950WDC-R and C9K-PWR-1600WDC-R belong to other Catalyst 9500 host groups, so you must order the DC supply by host model.
  • What heat load should I plan for a C9500-24Y4C-A or C9500-24Y4C-E fitted with C9K-PWR-930WDC-R?

    A C9500-24Y4C-A or C9500-24Y4C-E fitted with C9K-PWR-930WDC-R is rated at 1,484 BTU/hr in Table 13 of the Catalyst 9500 datasheet. Use that value for the DC rack cooling load, because the figure depends on the host model.
  • What BTU/hr rating applies to a C9500-48Y4C-A with C9K-PWR-930WDC-R installed?

    A C9500-48Y4C-A with C9K-PWR-930WDC-R installed is rated at 1,856 BTU/hr in Table 13 of the Catalyst 9500 datasheet. Use that value for the DC rack cooling load, because the figure depends on the host model.

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DataSheet Downloads

  • C9K-PWR-930WDC-R Datasheet