Cisco Power Supply PWR-C49-300AC for WS-C4948-S WS-C4948-E WS-C4948-10GE PWRC49300AC

Description:

The Cisco PWR-C49-300AC Power Supply is an AC power supply module used in Cisco Catalyst 4948 Series Ethernet switching systems to provide reliable electrical power for network switch operations. It is designed specifically for Cisco Catalyst WS-C4948-S, WS-C4948-E, and WS-C4948-10GE switches, delivering stable power required for high-performance Layer 3 switching environments. Commonly installed in enterprise campus networks, data center switching platforms, and network distribution infrastructure, this power supply helps maintain consistent system operation and supports redundant power configurations for improved reliability. Maintenance teams, IT infrastructure engineers, and system integrators use this module when replacing failed power units, performing system repairs, or maintaining continuous operation of Cisco Catalyst switching equipment. 

Applications:

The Cisco PWR-C49-300AC AC power supply is used to provide primary or redundant power for Cisco Catalyst 4948 series switches deployed in enterprise and data center networking environments. It is commonly used in corporate campus networks, data center switching layers, and distribution network infrastructure where dependable power delivery is necessary to maintain uninterrupted switching performance. Network administrators and maintenance technicians install this power supply when replacing defective modules or maintaining redundant power configurations to support continuous network uptime.

Technical Specifications:

• Brand: Cisco
• Manufacturer Part Number (MPN): PWR-C49-300AC
• Alternate Part Number: PWRC49300AC
• Product Type: AC Power Supply Module
• Compatible Series: Cisco Catalyst 4948 Series
• Supported Switch Models: WS-C4948-S, WS-C4948-E, WS-C4948-10GE
• Input Voltage Range: 100–240 VAC
• Input Frequency: 50–60 Hz
• Maximum Output Power: 300 Watts
• Power Supply Type: Internal hot-swappable module
• Cooling Method: Integrated cooling fan
• Redundancy Support: Supports dual power supply configuration
• Installation Type: Chassis-mounted module

Common Replacements:

• Cisco PWR-C49-300AC-R
• Cisco PWR-C49-300DC
• Cisco PWR-C49-600AC-R