Cisco PWR-C6-125WAC= Power Supply Datasheet, Technical Specifications, and Pricing Guide

1. Product Overview

The Cisco PWR-C6-125WAC= is a high-performance AC power supply unit designed specifically for Cisco Catalyst switches and other compatible Cisco network devices. Engineered to deliver reliable and efficient power, this 125-watt AC power supply ensures optimal uptime and operational stability in enterprise-grade network environments.

As part of Cisco’s modular power supply portfolio, the PWR-C6-125WAC= supports hot-swappable capabilities, allowing network administrators to replace or upgrade power supplies without interrupting network operations. This feature is critical in mission-critical deployments where continuous availability is paramount.

The power supply is engineered to meet stringent Cisco quality standards, providing robust protection against electrical anomalies such as surges, spikes, and overcurrent conditions. Its compact form factor and standardized interface make it compatible with a wide range of Cisco Catalyst switches, including but not limited to the Catalyst 3850 and 3650 series.

This datasheet provides an in-depth technical analysis of the PWR-C6-125WAC= power supply, covering its electrical and mechanical specifications, key features, benefits, and ordering information, including pricing and availability.

2. Product Specifications

2.1 Electrical Specifications

The Cisco PWR-C6-125WAC= power supply is designed to operate on a universal AC input voltage range, making it suitable for global deployments. The key electrical parameters are as follows:

• Input Voltage: 100 to 240 VAC (auto-ranging)
• Input Frequency: 50 to 60 Hz
• Input Current: Maximum 2.5 A at 100 VAC
• Output Power: 125 Watts (continuous)
• Output Voltage: +12 V DC
• Output Current: Up to 10.4 A
• Power Factor Correction (PFC): Active PFC compliant with IEC61000-3-2
• Efficiency: Typically > 85% at full load
• Hold-up Time: Minimum 10 ms at full load

2.2 Mechanical and Environmental Specifications

The physical and environmental characteristics of the PWR-C6-125WAC= are optimized for rack-mounted Cisco switches and data center environments:

• Dimensions (HxWxD): Approximately 1.5 x 3.5 x 7.0 inches (38 x 89 x 178 mm)
• Weight: Approximately 0.9 kg (2.0 lbs)
• Operating Temperature: 0°C to 40°C (32°F to 104°F)
• Storage Temperature: -40°C to 70°C (-40°F to 158°F)
• Relative Humidity: 5% to 90% non-condensing
• Cooling: Internal fan-assisted cooling with temperature-controlled speed
• Safety Certifications: UL, CSA, CE, TUV, CB Scheme compliant
• EMI/EMC Compliance: FCC Part 15 Class A, CISPR 22 Class A

2.3 Compatibility and Interface

The PWR-C6-125WAC= is designed for seamless integration with Cisco Catalyst switches that support modular power supplies. It interfaces via a standardized connector and locking mechanism to ensure secure installation and electrical contact.

• Compatible with Cisco Catalyst 3850 Series Switches
• Compatible with Cisco Catalyst 3650 Series Switches
• Hot-swappable design for zero downtime replacement
• LED status indicators for power health and fault detection

3. Features and Benefits

3.1 High Reliability and Redundancy Support

The PWR-C6-125WAC= supports Cisco’s redundant power supply architecture, enabling network engineers to deploy dual power supplies in critical switches. This redundancy ensures continuous power availability even if one power supply fails, significantly enhancing network resilience.

The unit’s internal protections guard against overvoltage, undervoltage, overcurrent, and short circuits, preventing damage to both the power supply and the connected switch hardware.

3.2 Energy Efficiency and Thermal Management

Designed with energy efficiency in mind, the PWR-C6-125WAC= meets or exceeds ENERGY STAR® standards for power supplies. Its active power factor correction reduces harmonic distortion on the AC line, improving overall power quality and reducing operational costs.

The integrated fan operates dynamically based on temperature sensors, optimizing cooling while minimizing acoustic noise. This feature is particularly beneficial in noise-sensitive environments such as offices or data centers.

3.3 Simplified Installation and Maintenance

The compact and modular design of the PWR-C6-125WAC= allows for quick installation and removal