The Cisco PWR-C45-1000AC is a 1000-watt AC-input power supply for the Cisco Catalyst 4500 and 4500 E-Series switch chassis, designed for data-only configurations (no inline PoE support). It is a hot-swappable, proprietary switching power supply supported across most Catalyst 4500/4500E chassis models, including the 4503-E, 4506-E, 4507R-E, 4507R+E, and — with power management — the 4510R-E and 4510R+E. The unit converts 100-240V AC input into the -48V DC nominal output required by the switch backplane, providing reliable primary or redundant power for enterprise core and distribution network deployments.
Key Features
- 1000W AC-input power supply for Cisco Catalyst 4500/4500E Series switches
- Data-only configuration (does not support inline Power over Ethernet)
- Hot-swappable design for continuous operation during replacement
- Dual built-in cooling fans (per some unit configurations) for thermal management
- Supported across most Catalyst 4500E chassis models (with power management required on 4510R-E/4510R+E)
- SNMP MIB support for power supply status monitoring
Technical Specifications
- Manufacturer: Cisco Systems
- Part Number: PWR-C45-1000AC
- Product Family: Catalyst 4500/4500E Series Power Supply
- Power Capacity: 1000W (also documented as 1040W max output on Astec-manufactured units, model AA22900)
- Input Voltage: 100-240V AC, 50/60Hz
- Input Current: 12A (100V) to 5A (240V)
- Output Voltage: -48V DC nominal
- Efficiency: Up to 90%
- Dimensions: 6.7 x 4.4 x 1.7 in (170 x 111 x 43 mm)
- Weight: 4.4 lb (2 kg) per unit spec; some listings show up to 12 lb (likely shipping/packaged weight)
- Heat Dissipation: 943 BTU/hr
- MTBF: 250,000 hours
- Holdup Time: 20ms
- Minimum Software: Cisco IOS 12.1(12c)EW or Cisco CatOS 7.4
- Related Manufacturer Part Numbers: 341-0037-0x (Cisco internal), Astec AA22900 (OEM manufacturer model)
90 DAY'S
