Cisco PWR-C1-1100WAC
1100W AC Config 1 Power Supply
Product Highlights
What's Included
When your Cisco Catalyst 3850 deployment demands full PoE budgets across high-density port configurations, an underpowered or aging power supply puts your entire network at risk. The Cisco PWR-C1-1100WAC eliminates that risk with 1100 watts of clean, reliable AC power in a hot-swappable Config 1 form factor.
Designed specifically for the Cisco Catalyst 3850 series (WS-C3850), this power supply accepts a wide input voltage range of 115–240 VAC at 50–60 Hz, making it suitable for deployments worldwide. Its hot-swappable design means field replacements happen in minutes — not hours — with zero disruption to live network traffic. Install a second PWR-C1-1100WAC in the dual-PSU chassis bay to achieve N+1 redundancy, ensuring your switches stay online even if one supply fails.
With a demonstrated MTBF of 500,000 hours and safety certifications including UL 60950-1, EN 60950-1, and IEC 60950-1, the PWR-C1-1100WAC is built for the demands of enterprise campus access layers, distribution closets, and branch office environments. It ships with an AC power cord, so you can rack and power up immediately.
Features & Benefits
1100W High-Capacity Output
The PWR-C1-1100WAC delivers 1100 watts of AC power, providing the headroom needed to support full PoE/PoE+ budgets on high-density Catalyst 3850 switch models. This ensures every connected endpoint — IP phones, wireless access points, security cameras — receives consistent, reliable power without throttling.
Hot-Swappable Field Replacement
Designed for zero-downtime maintenance, this power supply slides in and out of the switch chassis while the system remains fully operational. IT teams can perform upgrades or replacements during business hours without scheduling maintenance windows, reducing operational overhead and risk.
N+1 Redundant Power Architecture
Catalyst 3850 switches support dual power supply bays. Installing a second PWR-C1-1100WAC provides automatic failover — if one PSU fails, the other seamlessly takes over the full load. This redundancy is critical for environments where network downtime directly impacts revenue or safety.
Global AC Input Compatibility
With an input voltage range of 115–240 VAC and auto-ranging 50–60 Hz frequency support, this power supply operates reliably in data centers and wiring closets worldwide. A single SKU covers North American, European, and Asia-Pacific power grids, simplifying global procurement and sparing strategies.
Enterprise-Grade Reliability
A demonstrated MTBF of 500,000 hours (90% confidence level) and compliance with UL 60950-1, IEC 60950-1, and CE Marking standards ensure this PSU meets the stringent reliability requirements of mission-critical enterprise networks.
Deployment Scenarios
Enterprise Campus Access Layer
Power high-density Catalyst 3850 PoE switches that serve IP phones, wireless APs, and surveillance cameras across campus buildings. The 1100W capacity ensures full PoE budgets are met even on 48-port PoE+ models, while redundant PSU pairing eliminates single points of failure.
Branch Office and Remote Site Deployment
Standardize on a single high-capacity PSU across distributed branch locations. The wide-range AC input simplifies global deployments, and the hot-swappable design allows on-site IT staff to perform replacements without specialized training or extended downtime.
Spare and Replacement Inventory
Maintain PWR-C1-1100WAC units as critical spares in your warehouse or NOC. When a field PSU fails, the hot-swappable form factor enables rapid swap-outs measured in minutes, keeping SLA commitments intact and avoiding emergency procurement delays.
General
Electrical
Physical
Environmental
Reliability
Compliance & Certifications
Compatibility Notes
Compatible Platforms:
- Cisco Catalyst 3850 Series switches (WS-C3850 models) using the Config 1 (C1) power supply bay
The PWR-C1-1100WAC uses the C1 form factor. It is not interchangeable with C2, C3, or C6 power supply families. Always verify your specific WS-C3850 model's power supply bay type before ordering.
Note: The PWR-C1-1100WAC-P (Platinum-rated variant) is a newer SKU primarily associated with the Catalyst 9300 series. While community reports suggest physical compatibility, always confirm with Cisco documentation for your specific deployment.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| PWR-C1-715WAC | 715W AC Config 1 Power Supply | Lower 715W capacity — suitable for non-PoE or low-density PoE Catalyst 3850 models where 1100W is not required. |
| PWR-C1-350WAC | 350W AC Config 1 Power Supply | Entry-level 350W capacity — designed for non-PoE Catalyst 3850 models (e.g., WS-C3850-24T, WS-C3850-12S). |
| PWR-C1-440WDC | 440W DC Config 1 Power Supply | DC input (-36 to -72 VDC) instead of AC — intended for telco or DC-powered environments with Catalyst 3850 switches. |
| PWR-C1-1100WAC-P | 1100W AC Platinum Config 1 Power Supply | Platinum-rated (80 PLUS Platinum) variant with higher energy efficiency — primarily associated with Catalyst 9300 series. |
