Cisco PWR-C1-1100WAC

Description

The Cisco PWR-C1-1100WAC is a high-capacity 1100-watt AC power supply module designed for Cisco Catalyst switching platforms that use the C1 power-supply form factor.

It is designed to provide reliable power for enterprise network switches, including configurations with substantial PoE requirements. Cisco documentation lists the PWR-C1-1100WAC as a supported power supply for the Cisco Catalyst 9300 Series and also documents it for compatible Catalyst 3850 Series platforms.

With a maximum rated output of 1100W, the module is suitable for high-density switching environments where the switch may need significant power capacity for network interfaces and connected PoE devices.

The power supply supports an autoranging AC input from 115V to 240V at 50–60Hz, allowing it to operate across common enterprise electrical environments. Its rated input current is 12–6A, depending on the input voltage. Cisco specifies an output rating of -56V DC at 19.64A.

The module is installed internally in the switch and incorporates an internal cooling fan. Cisco switch platforms can use one or two power-supply modules depending on the chassis configuration; dual-PSU configurations can provide power redundancy.

Key Specifications

Cisco’s hardware documentation specifies the PWR-C1-1100WAC dimensions as approximately 1.58 × 3.25 × 13.7 inches (40.1 × 82.55 × 348.2 mm) and a weight of approximately 3 lb (1.4 kg).

Key Features & Benefits

• 1100W maximum power output
• AC input with 115–240V autoranging
• Supports 50–60Hz power systems
• Designed for Cisco Catalyst enterprise switches
• Suitable for high-density switching environments
• Supports demanding PoE configurations
• Internal cooling fan
• Field-replaceable power-supply design
• Suitable for redundant power configurations
• Ideal for network equipment replacement and maintenance

Redundant Power Configuration

Compatible Cisco switches can be configured with one or two power-supply modules. When two compatible PSUs are installed, the system can be configured for redundant power operation, helping improve network availability if one power supply needs to be replaced or becomes unavailable.

This makes the PWR-C1-1100WAC particularly useful in enterprise environments where network uptime and power resilience are important.

Compatible Cisco Platforms

Cisco documentation identifies the PWR-C1-1100WAC as a supported power supply for:

• Cisco Catalyst 9300 Series
• Compatible Cisco Catalyst 3850 Series configurations
• Other Cisco platforms specifically supporting the C1 1100W AC power-supply form factor

Cisco’s Catalyst 9300 documentation lists the PWR-C1-1100WAC alongside 350W and 715W C1 power-supply options.

PoE & Network Infrastructure

The 1100W power capacity is especially useful in switch configurations supporting substantial PoE/PoE+ and other powered-device requirements. The available PoE budget depends on the exact Catalyst model, switch configuration, software, and number/type of installed power supplies.

The PSU should therefore be selected according to the switch model’s documented power-budget requirements rather than assuming the entire 1100W rating is available as PoE output.

Recommended Applications

• Enterprise network switches
• Cisco Catalyst deployments
• Campus networks
• Data centers
• Enterprise wiring closets
• High-density PoE deployments
• Network infrastructure upgrades
• Redundant power configurations
• Switch maintenance and repair
• Replacement of failed power supplies

Compatibility Note

The PWR-C1-1100WAC is a platform-specific Cisco power supply. Before ordering, verify the exact Catalyst switch model and required PSU type.

Do not confuse this model with the PWR-C1-1100WAC-P, which is the Platinum-certified version. Cisco lists these as separate power-supply models.

Also verify the required AC power cord and local electrical connection. Cisco specifies an IEC 320-C16 input receptacle for the PWR-C1-1100WAC.