C9K-PWR-930WDC-R – 930W DC PSU – Catalyst 9500 High Performance
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C9K-PWR-930WDC-R Description
C9K-PWR-930WDC-R is a Cisco Catalyst 9500 Series High Performance 930W DC power supply module for the C9500-32QC, C9500-48Y4C, and C9500-24Y4C switches, used when those platforms need a like-for-like DC replacement or a DC power option in a dual-supply chassis. Cisco documents a -40 to -72 VDC input range and up to 23A input current at -48 VDC under full load, and the Catalyst 9500 hardware guide identifies the unit as a field-replaceable, hot-swappable PSU for chassis with two power supply bays. When only one supply is installed the empty bay keeps its blank cover in place, while redundant designs can populate the second slot with the matching 930W DC module.
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
C9K-PWR-930WDC-R fits replacement planning when a C9500-32QC, C9500-48Y4C, or C9500-24Y4C switch is already designed around a 930W DC power supply.
The Catalyst 9500 chassis supports two installed supplies or one installed supply with the other bay covered. This SKU is suitable when the second bay must follow the 930W DC supply entry rather than an AC supply line.
Orders that include both C9500-32C and C9500-32QC, C9500-48Y4C, or C9500-24Y4C hardware should keep C9K-PWR-930WDC-R separate from the 1600W DC PSU used by C9500-32C.
Product Comparison
|
Parameter |
C9K-PWR-930WDC-R | ||
|---|---|---|---|
|
Cisco ordering description |
930W DC Power Supply |
650W AC Power Supply |
1600W DC Power Supply |
|
Product type |
DC power supply module |
AC power supply module |
DC power supply module |
|
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 |
|
Power supply efficiency |
92 percent typical |
94 percent typical |
92 percent typical |
|
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 |
|
Output holdup time |
8 ms minimum for system |
20 ms minimum for system |
5 ms minimum for system |
|
Input receptacle |
Molex Minifit 44540-1001 |
AC IEC 60320 C14 |
Amphenol C10-638976-000 |
|
Power cord rating |
DC 40A |
AC 10A |
DC 70A |
|
Supported Catalyst 9500 models |
C9500-32QC, C9500-48Y4C, C9500-24Y4C |
C9500-32QC, C9500-48Y4C, C9500-24Y4C |
C9500-32C |
|
Related redundant order PID |
C9K-PWR-930WDC-R/2 |
C9K-PWR-650WAC-R/2 |
C9K-PWR-1600WDCR/2 |
- In a C9K-PWR-930WDC-R vs C9K-PWR-650WAC-R comparison, both PSUs map to C9500-32QC, C9500-48Y4C, and C9500-24Y4C, but the order changes from a 930W DC module to a 650W AC module.
- The C9K-PWR-930WDC-R difference from C9K-PWR-650WAC-R is visible in input power, receptacle, cord rating, and power rating, so the which model to choose check starts with the rack power source.
- For buyers comparing C9K-PWR-930WDC-R vs C9K-PWR-1600WDC-R, both are DC supplies, but the supported chassis row separates the 930W model for C9500-32QC, C9500-48Y4C, and C9500-24Y4C from the 1600W C9500-32C PSU.
- A C9K-PWR-930WDC-R comparison should also confirm whether the order line needs the single PSU PID or the redundant C9K-PWR-930WDC-R/2 ordering option.
Selection Guide
1. Start from the installed switch model
Choose C9K-PWR-930WDC-R only when the host switch is C9500-32QC, C9500-48Y4C, or C9500-24Y4C.
2. Confirm the DC power design
Select this SKU when the facility feed matches Cisco’s documented DC -40 to -72 VDC input range and the implementation team has planned DC cabling instead of an AC cord set.
3. Avoid 1600W DC cross-ordering
Use C9K-PWR-1600WDC-R instead only for C9500-32C orders, because Cisco lists a different supported switch model and a different DC connector and cord rating for that 1600W supply.
4. Decide single module or redundant line item
Order the single C9K-PWR-930WDC-R for a like-for-like replacement, or use C9K-PWR-930WDC-R/2 when the approved BOM calls for the redundant 930W DC PSU option.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact SKU |
C9K-PWR-930WDC-R |
Prevents substitution with the AC 650W PSU or the C9500-32C 1600W DC PSU |
|
Switch model |
C9500-32QC, C9500-48Y4C, or C9500-24Y4C |
Cisco lists this 930W DC PSU for these Catalyst 9500 High Performance models |
|
Site power |
DC -40 to -72 VDC available at the rack |
Confirms the cabinet feed matches the documented DC input range |
|
Connector and cable |
Molex Minifit 44540-1001 input receptacle and DC 40A cord rating |
Keeps receiving and installation aligned with the 930W DC hardware |
|
Power-source handling |
Separate power source planning for redundant mode |
Avoids building a redundant order that still depends on one feed |
|
Empty power bay |
Required blank cover remains installed if one PSU bay is unused |
Maintains the documented airflow path through the chassis |
|
Redundant PID |
C9K-PWR-930WDC-R/2 when a pair is required |
Separates single-module replacement from redundant power ordering |
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 |
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