Cisco PWR-C1-750WAC Full Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 750-Watt Hot-Swappable Standard Efficiency AC Power Supply Module (Config 1 Form Factor)
SKU:PWR-C1-750WAC
Naming Breakdown
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PWR: Modular power supply unit
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C1: Config 1 unified form factor designed for Catalyst 3850, Catalyst 9300 fixed switch chassis
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750W: Maximum rated DC output power of 750 Watts
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AC: Universal alternating current mains input
Critical Note: Verify part number before ordering. Official Config1 medium power model is PWR-C1-715WAC. PWR-C3-750WAC series is the genuine 750W PSU for Catalyst 3850. Cannot mix AC and DC power supplies in one chassis.
2. Core Architecture
The PWR-C1-750WAC is a hot‑swappable AC‑DC switching power module equipped with integrated temperature-controlled variable-speed cooling fan. It converts universal AC mains input to regulated -56 VDC output to power switch mainboard, internal fan assemblies and medium PoE loads. It supports parallel 1+1 redundant deployment and automatic load sharing inside compatible switch chassis. Embedded protection circuits implement overvoltage (OVP), overcurrent (OCP), overtemperature (OTP) and short‑circuit auto‑recovery protection.
Deployment Guidance: Calculate total PoE power budget before deployment. This power module provides sufficient power budget for IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) powered endpoints including IP phones, wireless access points and IP surveillance cameras.
3. Hardware & Software Compatibility
Supported Host Platforms
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Cisco Catalyst 3850 Series fixed-port switches (all PoE and non-PoE variants)
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Cisco Catalyst 9300 modular switches (all PoE+ and non-PoE models)
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Cisco Catalyst 9300X modular switches
Unsupported Platforms
C9200 / C9200L, C9300L, Catalyst 3650, Catalyst 9400/9500, Meraki MS series, ISR routers, ASA firewalls and all non‑C1‑config chassis. AC and DC power supplies cannot be mixed within the same switch chassis.
4. Electrical & Physical Specifications
Electrical Ratings
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Input Voltage: 100–240 VAC autoranging, 50/60 Hz
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Input Connector: IEC 60320 C16
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DC Output: -56 VDC, maximum rated 750 W
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Minimum Hold-up Time: ≥16.7 ms @100 VAC input
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Efficiency: Standard efficiency
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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)
5. 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 dynamic load sharing
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Real-time PSU health monitoring via IOS-XE CLI, SNMP and Cisco DNA Center
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Dynamic fan speed adjustment based on internal ambient 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 / C9300 switch systems. Fully compatible with all native Layer 2 / Layer 3 switching functions of supported host platforms.
6. Typical Deployment Scenarios
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Primary or redundant power supply for PoE/PoE+ Catalyst 3850 / C9300 access switches
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Enterprise campus access networks deploying multiple PoE wireless APs, IP phones and IP cameras
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Medium-scale campus and branch office switching requiring flexible PoE power budgeting
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Network environments requiring zero-downtime hot replacement of power modules
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Cost-sensitive PoE deployments without strict high platinum efficiency requirements
7. 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
8. Standard Factory Package Contents
1 × Cisco PWR-C1-750WAC power supply module
Hardware installation documentation
AC power cord sold separately; select regional C16 power cables as required.
Related Model Reference
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PWR-C1-715WAC / PWR-C1-715WAC/2: Official standard-efficiency 715W Config1 AC PSU
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PWR-C1-715WAC-P / PWR-C1-715WAC-P/2: 80 PLUS Platinum high efficiency variant
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PWR-C3-750WAC-R/F: Genuine 750W PSU for Catalyst 3850 (Config3 form factor)
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PWR-C1-350WAC series: Low-power Config1 power modules
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PWR-C1-1100WAC-P: High-capacity Platinum PSU for heavy UPOE deployments
UNSPSC Classification
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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