C9400-PWR-2100AC – 2100W AC PSU – Catalyst 9400 – Platinum Rated
Why Layer23-Switch
Stocked, Shipped and Supported by One Team
Ships in 1 Business Day
In-stock orders leave our Hong Kong or U.S. warehouse within 1 business day after payment, with tracking by email.
LSCare Warranty
3years on enterprise equipment
Free CCIE Support
Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.
Verify Before You Pay
100%factory-sealed
Get label and serial photos before shipment, and check every serial number with Cisco.
C9400-PWR-2100AC Description
The C9400-PWR-2100AC is a Cisco Catalyst 9400 Series Platinum-rated 2100W AC power supply for the C9404R, C9407R and C9410R modular chassis. The module outputs 950W at 100-120 VAC and 2112W at 200-240 VAC, drawing 10.4 A through an IEC60320/C19 appliance connector, with 55 VDC output capacity of 940W at 115 VAC and 2102W at 230 VAC. Installed supplies must share one capacity in N+1 or combined mode, so the module does not mix with 3200W supplies in those modes.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9400-PWR-2100AC |
|
Cisco ordering PID |
C9400-PWR-2100AC (=) |
|
Product type |
2100W AC power supply module |
|
Cisco ordering description |
Cisco Catalyst 9400 Series Platinum Rated 2100W AC Power Supply |
|
Compatible platform |
Cisco Catalyst 9400 Series modular switch chassis |
|
Input type |
Single-phase AC |
|
AC input voltage |
85 to 132 VAC low-line or 180 to 264 VAC high-line |
|
AC input current |
10.4 A at 100 VAC or 200 VAC |
|
Total output power |
950W at 100-120 VAC or 2112W at 200-240 VAC |
|
Output capacity |
55 VDC: 940W at 115 VAC or 2102W at 230 VAC; 3.3 VDC: 10W |
|
Minimum airflow |
7 CFM at 100 percent load |
|
Branch circuit requirement |
Dedicated fused branch circuit; North America 15A |
Application Scenarios
In a server-room closet fed from 200-240 VAC circuits, the module supplies up to 2112W to a Catalyst 9400 chassis whose line cards and supervisor draw less than the 3200W class.
A closet on 100-120 VAC feeds can run several modules in N+1 redundant mode, with each module contributing 940W at 55 VDC toward the chassis budget.
Product Comparison
|
Parameter |
C9400-PWR-2100AC | |||
|---|---|---|---|---|
|
Power supply output capacity |
950W at 100-120 VAC; 2112W at 200-240 VAC |
1570W at 100-120 VAC; 3200W at 200-240 VAC |
1570W at 100-120 VAC; 3200W at 200-240 VAC |
3200W |
|
Input voltage |
85 to 132 VAC or 180 to 264 VAC |
85 to 132 VAC or 180 to 264 VAC |
85 to 132 VAC or 180 to 264 VAC |
-40 to -72 VDC, extended to -75 VDC |
|
Input current |
10.4 A at 100 VAC or 200 VAC |
16 A at 100 VAC or 200 VAC |
17.6 A at 100 VAC or 200 VAC |
36 A nominal per input; 44 A maximum per input at -40 VDC |
|
Power cord connector |
IEC60320/C19 appliance connector |
IEC60320/C19 appliance connector |
IEC60320/C19 appliance connector |
DC input terminals |
|
Minimum airflow |
7 CFM at 100 percent load |
7 CFM at 100 percent load |
19.87 CFM at 100 percent load |
9.5 CFM at 100 percent load |
|
Heat dissipation |
460.0 BTU/hr at 2112W; 244.0 BTU/hr at 950W |
948.86 BTU/hr at 3200W; 594.85 BTU/hr at 1570W |
948.87 BTU/hr at 3200W; 465.54 BTU/hr at 1570W |
950 BTU/hr at 3200W |
C9400-PWR-2100AC is the smallest AC supply in this group, delivering 950W on 100-120 VAC and 2112W on 200-240 VAC, against 1570W and 3200W for C9400-PWR-3200AC and C9400-PWR-3200ACT, and drawing 10.4 A instead of 16 A. Racks that need 3200W of output at high-line input move to C9400-PWR-3200AC, which has the same 7 CFM minimum airflow, or to C9400-PWR-3200ACT, the Titanium-rated module with a 19.87 CFM minimum airflow. Sites fed from a DC plant need C9400-PWR-3200DC, which takes -40 to -72 VDC on DC input terminals, while all three AC modules use an IEC60320/C19 appliance connector.
PoE Power Planning
|
Planning Item |
Cisco-Confirmed Value |
Procurement Impact |
|---|---|---|
|
Low-line AC output |
940W at 55 VDC plus 10W standby output at 115 VAC |
Sets the lower chassis power budget when the site feed is 100-120 VAC |
|
High-line AC output |
2102W at 55 VDC plus 10W standby output at 230 VAC |
Supports the higher 2112W total output class for 200-240 VAC racks |
|
N+1 redundant mode formula |
2102W x (N-1) plus 10W standby at 230 VAC; 940W x (N-1) plus 10W standby at 115 VAC |
Determines how many supplies remain available after reserving one module for redundancy |
|
Combined mode formula |
2102W x N plus 10W standby at 230 VAC; 940W x N plus 10W standby at 115 VAC |
Shows the combined power pool when the design is not reserving an equivalent standby module |
|
Power budget validation |
Cisco directs users to calculate or estimate system power budget and PoE requirements with Cisco Power Calculator |
Prevents PSU quantity from being approved without checking supervisors, line cards, and PoE load |
Ordering Checklist
- Catalyst 9400 chassis: Use a C9404R, C9407R or C9410R, which support 3200W AC, 2100W AC and 3200W DC power supplies. The module fits Catalyst 9400 power supply bays only, not other Catalyst families.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9400-PWR-2100AC | Cisco ordering PID | C9400-PWR-2100AC (=) |
| Product type | 2100W AC power supply module | Cisco ordering description | Cisco Catalyst 9400 Series Platinum Rated 2100W AC Power Supply |
| Compatible platform | Cisco Catalyst 9400 Series modular switch chassis | Supported chassis order context | C9404R, C9407R, and C9410R |
| Input type | Single-phase AC | AC-input type | Wide-ranging input with power factor correction |
| AC input voltage | 85 to 132 VAC low-line or 180 to 264 VAC high-line | AC input current | 10.4 A at 100 VAC or 200 VAC |
| AC input frequency | 50/60 Hz nominal, 47 to 63 Hz full range | Branch circuit requirement | Dedicated fused branch circuit; North America 15A |
| Total output power | 950W at 100-120 VAC or 2112W at 200-240 VAC | 55 VDC output capacity | 940W at 115 VAC or 2102W at 230 VAC |
| 3.3 VDC standby output | 10W | Low-line output current | 17.09 A at 55V; 3.0 A at 3.3V |
| High-line output current | 38.21 A at 55V; 3.0 A at 3.3V | Output holdup time | 20 ms minimum |
| KVA rating | 2112W total output power or 2246.8 kVA at high-line operation | Heat dissipation | 460.0 BTU/hr at 2112W; 244.0 BTU/hr at 950W |
| Weight | 2.3 kg (5.0 lb) | Minimum airflow | 7 CFM at 100 percent load |
| Power cord connector | IEC60320/C19 appliance connector | Power supply modes | Redundant and combined modes |
| Hot-swappable | Yes | MTBF | 300,000 hours |
| Minimum software requirement | Cisco IOS XE Software Release 16.8.1 |
Get More Information
Need pricing, stock, or shipping details for the C9400-PWR-2100AC ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
-
How many C9400-PWR-2100AC supplies can I install in a C9404R, C9407R or C9410R chassis?
-
How many 15W PoE devices can one C9400-PWR-2100AC power at 240V?
-
From which IOS XE release is C9400-PWR-2100AC supported, and what is its 55 V current at 240V?
-
What does C9400-PWR-2100AC weigh when I plan the chassis bay load?
Warranty
Layer23-Switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
All items are brand new, original, and factory-sealed.
Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly. Visit Return Policy page for more information.
We support multiple secure payment and logistics options, backed by industry-leading verification:












Visit How to Pay page for more information
Extended, Worry-Free Warranty Coverage Factory New Sealed Enterprise Hardware:
· 3 Years Factory New Sealed
Visit Warranty Policy page for more information
Verify, plan, and comparewith confidence
Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.
Standard Services
Personalized Service, Superior Product Maintenance for Ultimate Satisfaction.
- Projects and Technical Support
- Easy Purchasing Supply
- Product Lifecycle Protection
- Exclusive F3 Team Support
Customized Support for Your Needs with CCIE, HCIE, HPE ASE, etc.

The product passed every aspect of our standard inspection process.
Layer23 turned my skepticism into loyalty. That’s not easy to do.
When we had a question after delivery, they responded the same day. Wish the lead time was a bit shorter, but product quality made up for it.
Shipping to Canada was smooth. No customs delays.
Excellent service. The team went above and beyond to get this to us.