Cisco PWR-4351-AC Full English Description

Product Overview

Important Note: ISR4351does not support dual redundant power supplies. Only a single power supply slot is available inside the chassis.

Key Features

1. 430 Watt Continuous Rated Output
   Sufficient power for standard ISR4351 configurations populated with multiple NIM/SM-X interface modules.

Critical Remark: This modellacks PoE power capacity. Deployments requiring IEEE802.3af/at PoE for switch modules must select the PoE-capable power supplyPWR-4450-POE-AC(compatible with ISR4351).

1. Universal Wide-Range Global AC Input
   Worldwide auto-ranging mains input specification:

• Input Voltage: 100 VAC ~ 240 VAC
• Operating Frequency: 47 Hz – 63 Hz
• Integrated IEC C14 power inlet for standard AC mains cord connection

1. Internal Hot-Swap Modular Form Factor

   Horizontal pluggable FRU installed within the ISR4351 router chassis.

   Important Note: ISR4351 chassis supports only one power supply; redundant power deployment is not supported. Do not mix AC and PoE power supply types in the same platform. This PSU cannot be used on ISR4321, ISR4331, ISR4431, ISR4451 and other ISR4000 family routers.
2. Hot-Swap Support

   Supports Online Insertion and Removal. Technicians can replace a faulty power module without powering down the router, enabling non-disruptive hardware maintenance and minimizing business service outages.
3. LED Status Indicators & IOS-XE Telemetry

   Front faceplate bi-color status LEDs indicate AC input presence and operational health. The module continuously reports operating voltage, internal temperature and fault events to IOS-XE for remote monitoring and alarm notification.
4. Multi-Layer Hardware Protection

   Integrated overvoltage protection (OVP), overcurrent protection (OCP), overtemperature protection (OTP), surge protection and short-circuit protection to safeguard both the power supply and ISR4351 router hardware.
5. High-Efficiency Power Conversion

   Optimized power conversion architecture reduces idle power draw and thermal dissipation, supporting reliable 24/7 continuous rack operation for enterprise medium branch networking environments.

Supported Hardware Platforms

• Cisco ISR 4351 Integrated Services Router (ISR4351/K9)

Not compatible: ISR4321, ISR4331, ISR4431, ISR4451, ISR4221 and other Cisco ISR platforms.

Typical Application Scenarios

• Medium/large enterprise branch WAN gateway deployments without PoE requirements
• Multiservice routing workloads: SD-WAN, IPsec VPN, firewall, NAT and voice services
• Remote office and regional site data interconnection gateways
• Spare replacement power supply for existing ISR4351 installations
• Network environments with no requirement to power PoE access points via internal switch NIM modules

Technical Specifications

• Form Factor: Internal pluggable FRU module for ISR4351 chassis
• Input Type: Universal 100–240 VAC wide-range AC
• Rated Continuous Output: 430W
• Hot Swappable: Yes
• Redundancy Support:No (single PSU slot only)
• PoE Support:Disabled
• Compliance: UL60950-1, EN60950-1, FCC Class A, CE certified, RoHS compliant

Short Version for E-commerce Listing

Supplementary Remark: PoE-capable compatible alternative:PWR-4450-POE-AC. DC variant for ISR4351: PWR-4450-DC.