Cisco PWR-C1-1100WAC-P
1100W AC 80+ platinum Config 1 Power Supply
Product Highlights
What's Included
When your Cisco Catalyst 9300 deployment demands reliable power for PoE-heavy access-layer switching, the margin between uptime and outage often comes down to the power supply. The Cisco PWR-C1-1100WAC-P is a 1100W AC power supply with 80 PLUS Platinum certification, engineered specifically for the Catalyst 9300 family of enterprise switches.
This Config 1 (C1) form-factor PSU delivers 1100 watts of clean, efficient AC power across a wide 115–240V input range, making it suitable for global deployments. Its Platinum-rated efficiency minimizes energy waste and thermal output — translating directly into lower electricity bills and reduced cooling requirements in your wiring closets and data centers.
The PWR-C1-1100WAC-P is hot-swappable, allowing field replacement without disrupting network traffic. Install a second unit in the dual-PSU bay of your Catalyst 9300 chassis to enable 1+1 redundancy and unlock additional PoE budget for connected endpoints such as IP phones, wireless access points, and surveillance cameras. Whether you're refreshing a campus access layer or stocking spares for a multi-site enterprise, this power supply delivers the wattage, efficiency, and reliability your network demands.
Features & Benefits
80 PLUS Platinum Efficiency
The PWR-C1-1100WAC-P carries 80 PLUS Platinum certification, meaning it operates at significantly higher efficiency than standard-rated supplies. Less energy is wasted as heat, which lowers your electricity costs and reduces the cooling burden on your facility's HVAC systems — a meaningful savings at scale across dozens or hundreds of switches.
Hot-Swappable Field Replacement
Designed as a hot-plug module, this PSU can be inserted or removed while the Catalyst 9300 switch is running. When paired with a redundant second supply, you can perform maintenance or upgrades with zero network downtime — critical for 24/7 enterprise and campus environments.
1+1 Power Redundancy
The Catalyst 9300 chassis supports two C1-form-factor power supplies. Installing a second PWR-C1-1100WAC-P enables N+1 redundancy, so the switch continues operating seamlessly if one PSU fails. The combined capacity also increases the available PoE power budget for connected devices.
Universal AC Input
With an AC 115–240V, 50–60 Hz auto-ranging input, this power supply adapts to virtually any commercial power grid worldwide. There's no need for external voltage converters or region-specific SKUs — one part number covers global deployments.
Purpose-Built for Catalyst 9300
The Config 1 (C1) form factor is designed to fit the power supply bay of Cisco Catalyst 9300, 9300L, and 9300X series switches. The mechanical and electrical interface ensures a secure, reliable connection with full platform support for PoE, PoE+, and UPOE power delivery.
Deployment Scenarios
Enterprise Campus Access Layer
Power Catalyst 9300 PoE switches serving IP phones, wireless access points, and security cameras across campus buildings. The 1100W capacity provides ample PoE budget for high-density 24- and 48-port configurations, while Platinum efficiency keeps energy costs manageable at scale.
High-Availability Branch Office
Deploy two PWR-C1-1100WAC-P units in a Catalyst 9300 chassis at remote branch sites to ensure 1+1 power redundancy. Hot-swap capability means a failed PSU can be replaced by on-site staff without scheduling a maintenance window or disrupting users.
Spare and Replacement Inventory
Maintain PWR-C1-1100WAC-P units as field-replaceable spares across multi-site enterprise networks. Having pre-staged replacements reduces mean time to repair (MTTR) and keeps your Catalyst 9300 infrastructure running at full capacity.
PoE-Heavy IoT and Surveillance Deployments
Support dense PoE loads from IoT sensors, digital signage, and IP surveillance cameras connected to Catalyst 9300 switches. The 1100W output ensures sufficient power headroom even when every port draws near-maximum PoE+ wattage.
General
Electrical
Physical
Compatibility
Reliability
Compatibility Notes
Compatible Cisco Catalyst Switch Families
- Catalyst 9300 Series — C9300-24T, C9300-48T, C9300-24P, C9300-48P, C9300-24U, C9300-48U, C9300-24UX, C9300-48UXM, C9300-48UN, C9300-24H, C9300-48H, C9300-48UB, and other C9300 models using the C1 power supply bay
- Catalyst 9300L Series — C9300L models that accept C1-form-factor power supplies
- Catalyst 9300X Series — C9300X-24HX, C9300X-48HX, C9300X-48HXN, and other C9300X models
Note: The PWR-C1-1100WAC-P is not compatible with Catalyst 9300LM models, which use C6-family power supplies instead of the C1 family. Always verify your specific switch model's power supply compatibility before ordering.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| PWR-C1-715WAC-P | 715W AC Platinum Config 1 PSU | Lower 715W output — suitable for switches with lighter PoE loads; same Platinum efficiency and C1 form factor. |
| PWR-C1-1900WAC-P | 1900W AC Platinum Config 1 PSU | Higher 1900W output (at 230V input) for maximum PoE budget; required for the most power-hungry C9300 configurations. |
| PWR-C1-1100WAC | 1100W AC Config 1 PSU (Non-Platinum) | Same 1100W output class but without 80 PLUS Platinum certification; the -P variant offers higher energy efficiency. |
| PWR-C1-350WAC-P | 350W AC Platinum Config 1 PSU | Entry-level 350W output for data-only (non-PoE) Catalyst 9300 switch models; not suitable for PoE deployments. |
