C9K-PWR-1500WDC – 1500W DC PSU – Catalyst 9500X – Hot-Swappable FRU
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C9K-PWR-1500WDC Description
C9K-PWR-1500WDC is a Cisco Catalyst 9500X Series 1500W DC power supply module for C9500X-28C8D and C9500X-60L4D switches that need DC plant input rather than AC feed. It delivers a 1500W maximum power rating with a -40 to -72 VDC input range, uses a 12V main output rated at 125A, and installs as a hot-swappable field-replaceable unit in the platform's two power supply slots, with the blank cover kept in place when only one PSU is fitted.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9K-PWR-1500WDC |
|
Product type |
DC power supply module |
|
Cisco ordering description |
Catalyst 9500X 1500W DC Power Supply |
|
Compatible switch models |
C9500X-28C8D and C9500X-60L4D |
|
Power max rating |
1500W |
|
Input voltage range |
-40 to -72 VDC |
|
Power supply efficiency |
94 percent at -48 to -60 VDC, 50 percent load |
|
Input current |
45A maximum at -40 VDC |
|
Output ratings |
Main output 12V 125A; standby output 3.3V 5A |
|
Output holdup time |
2 ms |
|
Input receptacle |
C10-638977-00 Amphenol Connector |
|
Airflow note |
PSU airflow is back to front and supports both system airflow directions |
Application Scenarios
Select C9K-PWR-1500WDC when the Catalyst 9500X bill of materials is built for a data center or telecom DC plant rather than an AC branch circuit.
Use this PSU as the replacement line item when the installed C9500X switch already uses the 1500W DC power supply family and the spare must match the input type.
Use C9K-PWR-1500WDC in two-PSU designs where the chassis power plan calls for DC input modules. Keep blank covers installed in unused slots and connect redundant supplies to separate power sources when the design uses redundant mode.
Product Comparison
|
Parameter |
C9K-PWR-1500WDC | ||
|---|---|---|---|
|
Cisco ordering description |
Catalyst 9500X 1500W DC Power Supply |
Catalyst 9500X 1500W AC Power Supply |
1600W DC Power Supply |
|
Product type |
DC power supply module |
AC power supply module |
DC power supply module |
|
Power max rating |
1500W |
1500W |
1600W |
|
Input voltage range |
-40 to -72 VDC |
90 to 264 VAC, 47 to 63 Hz |
DC -40 to -72 VDC |
|
Power supply efficiency |
94 percent at -48 to -60 VDC, 50 percent load |
92 percent at 115 VAC, 50 percent load; 94 percent at 230 VAC, 50 percent load |
92 percent typical |
|
Input current |
45A maximum at -40 VDC |
17A maximum at 100 VAC; 7A maximum at 240 VAC |
DC 40A max at -48VDC when fully loaded |
|
Output ratings |
Main output 12V 125A; standby output 3.3V 5A |
Main output 12V 125A; standby output 3.3V 5A |
12V main at 133A; 12V standby at 3A |
|
Output holdup time |
2 ms |
12 ms |
5 ms minimum for system |
|
Input receptacle |
C10-638977-00 Amphenol Connector |
C22 |
Amphenol C10-638976-000 |
- In a C9K-PWR-1500WDC vs C9K-PWR-1500WAC comparison, the deciding difference is input power: C9K-PWR-1500WDC is the DC-input module, while C9K-PWR-1500WAC is the AC-input module.
- The C9K-PWR-1500WDC difference from C9K-PWR-1500WAC also affects cabling, because the DC module uses the Cisco-listed Amphenol connector and does not use the AC cord rating shown for the AC model.
- For buyers comparing C9K-PWR-1500WDC vs C9K-PWR-1500WAC, both are 1500W Catalyst 9500X PSUs, so the facility power type and connector plan should decide which model to order. C9K-PWR-1600WDC-R is included as an additional same-family comparison point.
Selection Guide
1. Confirm the facility power type
Choose C9K-PWR-1500WDC only when the Catalyst 9500X installation will use the documented -40 to -72 VDC input range.
2. Match the PSU to the Catalyst 9500X platform
Use this SKU for C9500X-28C8D or C9500X-60L4D power supply planning, not for non-9500X Catalyst 9500 models that use different PSU families.
3. Plan the second power bay
If the chassis will run with one PSU, keep the PWR-C6-BLANK cover installed in the unused slot to maintain the designed airflow path.
4. Separate sources for redundant mode
When redundant mode is required, connect each power supply to a separate power source and verify that the quote reflects the intended single-PSU or redundant design.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact SKU |
C9K-PWR-1500WDC |
Prevents substitution with the AC model or redundant /2 ordering option |
|
Product family |
Cisco Catalyst 9500X Series |
Confirms the PSU is being ordered for the supported switch family |
|
Supported switch models |
C9500X-28C8D or C9500X-60L4D |
Matches the Cisco hardware guide power supply support table |
|
Input power |
-40 to -72 VDC |
Confirms the site DC plant can feed the module |
|
PSU count |
One or two power supplies in the chassis |
Affects redundancy planning and whether a blank cover must remain installed |
|
Redundant power source |
Separate power source for each PSU in redundant mode |
Aligns the wiring plan with Cisco installation guidance |
|
DC connector planning |
C10-638977-00 Amphenol Connector |
Prevents cable and connector mismatch during installation |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9K-PWR-1500WDC | Product type | DC power supply module |
| Cisco ordering description | Catalyst 9500X 1500W DC Power Supply | Compatible switch models | C9500X-28C8D and C9500X-60L4D |
| Power supply slots | Two AC/DC power supply slots on Catalyst 9500X switches | 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 | 1500W |
| Input voltage range | -40 to -72 VDC | Power supply efficiency | 94 percent at -48 to -60 VDC, 50 percent load |
| Input current | 45A maximum at -40 VDC | Output ratings | Main output 12V 125A; standby output 3.3V 5A |
| Output holdup time | 2 ms | Input receptacle | C10-638977-00 Amphenol Connector |
| Blank cover | PWR-C6-BLANK required when a power supply slot is empty | PSU airflow | Back to front PSU airflow |
| System airflow support | Supports back-to-front and front-to-back system airflow directions | BTU with C9500X-28C8D | 4,034 BTU/hr |
| BTU with C9500X-60L4D | 3,412 BTU/hr |
Get More Information
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