Cisco PWR-C2-640WAC is a 640-watt AC power supply module designed for Cisco Catalyst switches, including the Catalyst 3650, 3850, and 2960-X/XR series. It provides reliable primary or redundant power for switch operation and supports hot-swappable installation, ensuring uninterrupted network availability. This PSU is commonly used in enterprise access-layer deployments where moderate PoE and system power requirements are needed.

? KEY FEATURES

• 640W AC power output for Catalyst switches
• Compatible with Cisco Catalyst 3650 / 3850 / 2960-X/XR
• Hot-swappable (no downtime during replacement)
• Supports redundant PSU configurations
• Auto-ranging AC input (global voltage support)
• High efficiency (~90% at full load)
• Internal cooling with fan redundancy

⚙️ TECHNICAL SPECIFICATIONS

? Power Specifications

• Output power: 640 Watts
• Input voltage: 100–240 VAC (auto-ranging)
• Frequency: 50–60 Hz
• Input current: 8–4 A
• Output rails:
  • +12V @ 20.83A
  • –54V @ 7.36A

⚡ Performance

• Total output heat: ~2183 BTU/hr
• Efficiency: ~90% at full load
• Supports redundant operation (dual PSU)

? Compatibility

• Cisco Catalyst 3650 Series
• Cisco Catalyst 3850 Series
• Cisco Catalyst 2960-X / 2960-XR Series

? Operational Features

• Hot-swappable: Yes
• Redundancy: Supported
• Cooling: Internal fan