Cisco PWR-C1-715WDC Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 715-Watt Hot-Swappable -48VDC Input Power Supply Module (Config 1 Form Factor)
SKU:PWR-C1-715WDC
Naming Breakdown
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PWR: Modular power supply unit
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C1: Config 1 unified form factor standard for Catalyst 3850 / Catalyst 9300 fixed switch chassis
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715W: Maximum rated DC output power of 715 Watts
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DC: Negative -48 VDC telecom direct current input
Critical Distinction: Same mechanical footprint and output voltage as 715W AC models. Designed for telecom environments with -48VDC power plant. Cannot mix AC and DC power supplies within the same chassis. Distinguish from lower-capacity PWR-C1-440WDC.
Core Architecture
The PWR-C1-715WDC is a hot‑swappable DC‑DC switching power module equipped with integrated temperature-controlled variable-speed cooling fan. It converts wide-range telecom -48 VDC input to regulated -56 VDC output to power switch mainboard, internal fan assemblies and medium-to-heavy PoE loads. It supports parallel 1+1 redundant deployment and automatic load sharing inside compatible switch chassis. Embedded protection circuits provide overvoltage (OVP), overcurrent (OCP), overtemperature (OTP) and short‑circuit auto‑recovery protection.
Deployment Guidance: Calculate total PoE power budget before deployment. This 715W PSU supplies sufficient power for IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) powered endpoints common in carrier and enterprise campus networks. Only pair identical DC power supplies for redundancy.
Core Product Positioning
The Cisco PWR-C1-715WDC is a field-replaceable hot‑swappable DC power supply built for carrier, service provider and enterprise networks utilizing standard telecom -48VDC power infrastructure. Suitable as primary or redundant power source for PoE-enabled Catalyst switch deployments. Dual PSU installation eliminates single point of failure and enables live power module replacement without switch shutdown. Widely deployed in carrier POP sites, remote branch offices and enterprise environments with DC power distribution systems.
2. 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 in one switch.
3. Electrical & Physical Specifications
Electrical Ratings
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Input Voltage Range: -36 VDC ~ -72 VDC (nominal -48 VDC telecom input)
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Input Current: Maximum 16 A @ -36 VDC / <8 A @ -72 VDC
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Input Terminals: Screw terminal block for DC wiring
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DC Output: -56 VDC, maximum 12.8 A (715 W)
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Minimum Hold-up Time: ≥16.7 ms
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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: 1.3 kg (2.8 lb)
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 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.
5. Typical Deployment Scenarios
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Primary or redundant DC power supply for PoE/PoE+ Catalyst 3850 / C9300 access switches
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Service provider POP, carrier and remote sites equipped with telecom -48VDC power plants
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Networks deploying multiple PoE wireless APs, IP phones and IP surveillance cameras
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Mission-critical switching requiring zero-downtime hot replacement of power modules
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Industrial and remote branch environments with DC power distribution infrastructure
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
7. Standard Factory Package Contents
1 × Cisco PWR-C1-715WDC DC power supply module
Hardware installation documentation
DC power wiring, lugs and cables sold separately.
Model Comparison Reference
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PWR-C1-715WDC: 715W Config 1 -48VDC input power supply
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PWR-C1-440WDC: Lower capacity 440 Watt DC-input Config 1 PSU
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PWR-C1-715WAC / PWR-C1-715WAC-P: Equivalent wattage AC power supply variants
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PWR-C1-350WAC / PWR-C1-350WAC-P: 350W lower-capacity Config 1 AC power modules
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PWR-C1-1100WAC-P: 1100W Platinum AC PSU for high-density UPOE deployments
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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