Juniper PWR-MX480-2520-AC-S MX480 Redundant AC Power Supply

High-Capacity 2520W AC Power Module for MX480 3D Universal Edge Routers

The Juniper PWR-MX480-2520-AC-S is a high-capacity 2520-watt AC power supply module designed to provide reliable and efficient power for the Juniper MX480 3D Universal Edge Router. Engineered by Juniper Networks, this power module supports the demanding energy requirements of modern high-performance routing environments, including service provider networks and large enterprise infrastructures.

Built for carrier-grade reliability, the PWR-MX480-2520-AC-S delivers up to 2520 watts of output power when operating with a 200–240 VAC input. The module powers key router components such as Dense Port Concentrators (DPCs), Modular Port Concentrators (MPCs), and Switch Control Boards (SCBs), ensuring stable operation even in high-density configurations.

The module features a hot-swappable design, allowing installation or replacement without shutting down the MX480 router. This capability ensures continuous network uptime and zero disruption to data traffic or control-plane operations, which is essential in mission-critical networking environments.

For enhanced reliability, the MX480 platform supports N+1 and N+N redundant power configurations. When multiple power supplies are installed, they automatically perform load sharing, distributing electrical demand evenly across modules to improve efficiency and extend hardware lifespan.

The power supply also includes integrated LED status indicators, providing instant visual feedback on operational conditions such as AC input status, DC output status, and fault detection. These indicators help network administrators quickly identify and resolve power-related issues.

With its high power capacity, redundant design, and hot-swap capability, the Juniper PWR-MX480-2520-AC-S is an essential component for maintaining reliable operation of MX480 routing platforms deployed in service provider networks, enterprise cores, and high-performance data centers.

Product Specifications – Juniper PWR-MX480-2520-AC-S 2520W AC Power Supply Module
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FAQs:

Q1. Can I mix this 2520W AC supply with older 1200W supplies?
No. Juniper strictly recommends using identical power supplies within a single chassis to ensure proper load sharing and power management. Mixing different wattages can lead to unpredictable behavior or power failures.

Q2. How many power supplies does the MX480 hold?
The MX480 chassis can hold up to four AC power supply modules. Depending on your configuration, two are typically required for base operation, while the remaining two provide redundancy.

Q3. Does this module require a 110V or 220V outlet?
To achieve the full 2520W output, this module requires a 200–240 VAC input. Using a lower voltage (110V) may significantly reduce the available wattage or prevent the module from operating.

Q4. Is the power cord included with the "S" (Spare) model?
Generally, the PWR-MX480-2520-AC-S does not include a power cord. You must order the specific AC power cord that matches your region's outlet type (e.g., NEMA 6-20 or international equivalents).

Q5. How can I check the power status in Junos?
You can use the CLI command show chassis power to view the current load, capacity, and status of each installed power supply module.