Power supply Cisco C3K-PWR-1150WAC-RFB 1150W AC for Catalyst 3000 series

The Cisco C3K-PWR-1150WAC-RFB is a 1150W AC power supply module engineered for Cisco Catalyst 3000 series switches. This field-replaceable, redundant AC unit delivers stable power for rack-mounted deployments that require high availability and quick serviceability. Designed for compatibility with Catalyst 3000 chassis, the module supports uninterrupted operation by allowing a failed supply to be swapped without powering down the switch.

Advantages

The unit provides 1150 watts of AC output in a compact, hot-swappable module that supports redundant power configurations. Field-replaceable design reduces mean time to repair (MTTR) and simplifies maintenance in data center and enterprise network environments. Built to Cisco quality standards, the module integrates with Catalyst 3000 series management and monitoring features to report power status and faults.

Suitable for

• Enterprise and campus network switches in rack deployments
• Data center edge and aggregation layer using Catalyst 3000 series
• Environments requiring redundant power and fast replacement
• IT operations that need predictable power management and monitoring

Key specifications

• Brand: Cisco
• Model / MPN: C3K-PWR-1150WAC-RFB
• Output power: 1150 W (AC)
• Form factor: Field-replaceable, hot-swappable power supply module
• Compatibility: Cisco Catalyst 3000 series switches
• Application: Redundant AC power support for rack-mounted switches

How to use

Install the power module into the designated power bay of a compatible Cisco Catalyst 3000 series chassis following the switch’s hardware installation guide. Ensure the switch is correctly mounted in the rack and that AC mains are connected to the module using appropriate grounded power cabling. When replacing a faulty module, use hot-swap procedure: remove the failed unit and insert the replacement while maintaining other active power supplies to avoid interruption. Verify power status through the switch’s front-panel indicators and management interface after installation.

Recommendations

Use this Cisco C3K-PWR-1150WAC-RFB power supply in multi-supply configurations for redundancy; match replacement modules by model number and verify firmware and hardware compatibility with your Catalyst 3000 switch documentation. Follow safety and grounding guidelines and perform replacements during maintenance windows when possible to coordinate monitoring and testing.