Cisco PWR-C1-350WAC Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 350-Watt Hot-Swappable AC Power Supply Module (Config 1)
SKU:PWR-C1-350WAC
Naming Breakdown
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PWR: Power supply module
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C1: Config 1 form factor, unified power module standard for Catalyst 3850 / C9300 series chassis
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350W: Maximum rated DC output power of 350 Watts
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AC: Alternating current mains input
Important Distinction: This base model differs from PWR-C1-350WAC-P (Platinum efficiency variant). Verify switch compatibility before deployment.
Core Architecture
The PWR-C1-350WAC is an internal hot-swappable switching AC-DC power supply with integrated cooling fan. It converts universal AC mains input to regulated -56 VDC output to power switch mainboard, fan assembly and limited PoE loads. Supports parallel redundant operation (1+1 redundancy) within supported switch chassis. It features built-in overvoltage, overcurrent, overtemperature and short-circuit protection circuits.
Deployment Tip: For PoE-enabled switch models, evaluate total power budget; this 350W PSU provides limited available power for IEEE 802.3af/at powered devices.
Core Product Positioning
The Cisco PWR-C1-350WAC is a field-replaceable hot-swappable AC power supply designed for Catalyst enterprise access switches. It delivers stable power for non-PoE or low PoE-demand switch deployments. Dual PSU installation eliminates single point of failure, enabling power supply replacement without switch power interruption. Widely used in campus access, branch office LAN and medium enterprise networks for Catalyst 3850 and Catalyst 9300 fixed-form-factor switches.
2. Hardware Compatibility
Supported Platforms
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Cisco Catalyst 3850 series switches (WS-C3850-24T, WS-C3850-48T and low-PoE variants)
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Cisco Catalyst 9300 series modular switches (C9300-24T, C9300-48T non-PoE models)
Note: Not recommended for full PoE+ / UPOE high-load chassis.
Unsupported Platforms
C9200 / C9200L, C9300X, Catalyst 3650, Catalyst 9400/9500, ISR routers, ASA firewalls and other non-C1-config chassis.
3. Electrical & Physical Specifications
Electrical Ratings
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Input Voltage: 100–240 VAC autoranging, 50/60 Hz
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Input Current: 4 A @100 VAC / 2 A @240 VAC
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Input Connector: IEC 60320 C16
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DC Output: -56 VDC, up to 6.25 A (350 W maximum)
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Minimum Hold-up Time: ≥16.7 ms @100 VAC input
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Cooling: Integrated variable-speed cooling fan
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Protection: OVP, OCP, OTP, short-circuit auto recovery
Physical Specifications
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Dimensions (H × W × D): 1.58 × 3.25 × 12.20 in (40.1 × 82.6 × 309.9 mm)
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Approximate Weight: 1.2 kg (2.6 lb)
Environmental Specifications
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Operating Temperature: -5 °C ~ +45 °C (23 °F ~ 113 °F)
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Storage Temperature: -40 °C ~ +70 °C
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Operating Humidity: 5% ~ 95% non-condensing
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Maximum Operating Altitude: 3048 m (10,000 ft)
4. Supported Functional Capabilities
Power System Functions
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Hot-swappable Online Insertion and Removal (OIR)
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Parallel redundant 1+1 power mode
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Power load sharing when dual PSUs installed
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PSU status monitoring via IOS-XE CLI, SNMP and Cisco DNA Center
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Fan speed adjustment based on internal temperature
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Fault alarm reporting for overheat, power loss and hardware failure
Platform Features
Works alongside native switch functions including StackPower power pooling when deployed within stacked Catalyst 3850 / C9300 systems.
5. Typical Deployment Scenarios
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Non-PoE Catalyst 3850 / C9300 access switch primary or redundant power source
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Branch office low-density LAN deployments without heavy PoE device loads
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Secondary backup power supply alongside higher-wattage PSU for mixed-power redundancy design
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Network environments requiring zero-downtime power module replacement
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Cost-sensitive fixed-port switch deployments with minimal IP phone / wireless AP power requirements
6. Regulatory & Compliance Certifications
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Safety: UL 60950-1, IEC 60950-1
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EMC: CE, FCC Part 15 Class A, ICES-003 Class A
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Environmental: RoHS compliant
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Efficiency: Standard efficiency AC power module
7. Standard Package Contents
1 × Cisco PWR-C1-350WAC power supply module
Installation documentation
AC power cord sold separately (select regional C16 power cables as required).
Model Comparison Reference
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PWR-C1-350WAC: 350W standard efficiency AC PSU, C1 config form factor
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PWR-C1-350WAC-P: 350W Platinum high-efficiency AC variant
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PWR-C1-715WAC: 715W higher-capacity AC power supply
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PWR-C1-1100WAC-P: 1100W Platinum AC PSU for high PoE load
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PWR-C1-440WDC: 440 Watt -48VDC DC input power supply
UNSPSC Classification Code
43211702 – Network equipment internal power supply module
Hardware Warranty
Genuine Cisco original hardware carries Cisco standard one-year hardware warranty. Refurbished units follow respective supplier warranty terms.
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