Cisco PWR-C5-125WAC — 125W Configurable AC Power Supply
What it is
PWR-C5-125WAC is a Cisco configurable AC power supply that delivers 125 watts of AC power to supported Cisco switches and modular systems that accept Config-5 power supply modules.
It provides basic power capacity for smaller or less power-hungry devices, and can be paired with additional PSUs for redundancy on supported platforms.
Why buyers pick PWR-C5-125WAC (plain English)
Right-sized for low power demands
125W of output is ideal for small switches and devices that don’t require lots of power, including models without PoE or with minimal accessory load.
Configurable flexibility
Designed for systems that let you choose power supplies based on performance and redundancy needs — start small and expand later.
Supports redundancy
Where the hardware supports multiple PSUs, you can install more than one to ensure the system stays powered if one supply fails.
Hot-swappable design
Can be installed or replaced while the device is running on platforms that support hot-swap PSUs, reducing maintenance interruptions.
Cisco-qualified component
Tested and validated on compatible Cisco products to ensure reliable performance and supportability.
60-second spec box (PWR-C5-125WAC)
Power supply type
Configurable AC power supply
Output capacity
125 watts
Input
AC (auto-ranging)
Redundancy support
Yes (platform dependent)
Hot-swap
Yes (on supported platforms)
Form factor
Modular PSU
Use case
Basic AC power for low-power Cisco devices or part of redundant PSU configuration.
Where it fits (and when to choose something else)
Perfect for:
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Smaller Cisco switches and modular systems with low power demands
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Deployments where PoE isn’t required or minimal
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Redundant power designs in access or edge environments
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Field or branch hardware that doesn’t need high wattage
Choose something else if:
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You need higher capacity → 300W / 600W / 1000W Config-5 PSUs
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You need DC power → DC PSU variants (if platform supports)
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Your platform uses fixed internal PSUs → fixed PSU models
TL;DR
PWR-C5-125WAC is Cisco’s 125W Configurable AC power supply:
a compact, hot-swappable modular PSU that delivers basic AC power for compatible Cisco devices and supports redundancy where multiple PSUs are allowed.
