Cisco PWR-C1-350WAC/2 Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 350-Watt Hot-Swappable AC Power Supply Module (Config 1, Secondary Variant)
SKU:PWR-C1-350WAC/2
Naming Breakdown
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PWR: Modular power supply unit
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C1: Config 1 standard form factor for Catalyst 3850 switch chassis
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350W: Maximum rated DC output power of 350 Watts
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AC: Universal alternating current mains input
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/2: Secondary / spare commercial variant, electrically and mechanically interchangeable with base PWR-C1-350WAC
Critical Note: This unit shares identical electrical specifications, form factor and pinout with standard PWR-C1-350WAC. It isprimarily qualified for Catalyst 3850 series, while supported for low-load non-PoE C9300 deployments. Not a Platinum efficiency model; distinguish from PWR-C1-350WAC-P.
Core Architecture
The PWR-C1-350WAC/2 is a hot-swappable AC-DC switching power module equipped with integrated variable-speed cooling fan. It converts universal AC input to regulated -56 VDC output to power switch mainboard, onboard fans and limited PoE loads. Supports parallel 1+1 redundant power operation inside compatible chassis. Embedded protection circuits provide overvoltage (OVP), overcurrent (OCP), overtemperature (OTP) and short-circuit auto-recovery protection.
Deployment Guidance: For PoE-enabled switches, calculate total power budget; this 350W PSU only supplies limited power budget for IEEE 802.3af/at powered endpoints.
Core Product Positioning
The Cisco PWR-C1-350WAC/2 is a field-replaceable hot-swappable AC power supply designed mainly for Catalyst 3850 enterprise access switches. It provides stable primary or redundant power for non-PoE or light PoE-load network deployments. Dual power supply installation eliminates single point of failure and enables live power module replacement without switch shutdown. Widely deployed in campus access networks, branch office LANs and medium enterprise fixed-port switching environments.
2. Hardware & Software Compatibility
Supported Host Platforms
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Cisco Catalyst 3850 Series all fixed-port models (WS-C3850-24T, WS-C3850-48T and low-PoE variants)
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Cisco Catalyst 9300 modular switches (low PoE / non-PoE configurations only)
Unsupported Platforms
C9200 / C9200L, C9300X, Catalyst 3650, Catalyst 9400/9500, ISR routers, ASA firewalls and all 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, maximum 6.25 A (350 W)
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Minimum Hold-up Time: ≥16.7 ms @100 VAC input
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Cooling: Integrated temperature-controlled variable speed fan
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Protection: OVP, OCP, OTP, short-circuit automatic recovery
Physical Specifications
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Dimensions (H × W × D): 40.1 × 82.6 × 309.9 mm (1.58 × 3.25 × 12.20 inch)
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Approximate Unit Weight: 1.2 kg
Environmental Specifications
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Operating Temperature: -5 °C ~ +45 °C
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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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Online Insertion and Removal (OIR) hot-swap capability
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Parallel 1+1 redundant power mode and load sharing
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Real-time PSU health monitoring via IOS-XE CLI, SNMP and Cisco DNA Center
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Fan speed dynamic adjustment based on internal temperature
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Fault alert reporting for overheating, power loss and hardware faults
Platform Feature Compatibility
Supports StackPower power pooling function when installed within stacked Catalyst 3850 switch systems. Fully compatible with all native Layer 2 / Layer 3 switching features of host platforms.
5. Typical Deployment Scenarios
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Primary or redundant power source for non-PoE / low-PoE Catalyst 3850 access switches
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Branch office low-density LAN deployments without heavy PoE device consumption
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Secondary backup power alongside higher-wattage PSUs for mixed redundancy design
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Network environments requiring zero-downtime power module hot replacement
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Cost-sensitive fixed-port switch deployments with minimal IP phone and wireless AP power demand
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 Config 1 AC power module
7. Standard Factory Package Contents
1 × Cisco PWR-C1-350WAC/2 power supply module
Hardware installation documentation
AC power cord sold separately; select regional C16 power cables as required.
Model Comparison Reference
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PWR-C1-350WAC/2: 350W standard efficiency AC PSU, Config 1, optimized for Catalyst 3850
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PWR-C1-350WAC: Base commercial 350W AC model, electrically identical
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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 loads
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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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