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Arista

Arista PWR-322-DC-RED | Campus 720X 300W DC Power Supply, Front to Rear (RED)

PWR-322-DC-RED

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Description

This power supply is a 300W DC unit (v3) for Arista Campus 720X Series switches. It takes a 48-60V DC input through a terminal block, which suits telco-style and DC-powered sites. The RED designation marks the front-to-rear airflow version, used where switches are aligned to hot and cold aisles. It works as a spare or as the second supply for a redundant power setup in access deployments that do not need PoE.

Output is 300W. Input current is 6.85A at 40VDC and 5.44A at 60VDC, with efficiency of 94% at 50% load and 91% at 100% load. It provides system power only and has no PoE budget, so it is not the choice for powering PoE devices. The supply is hot-swappable and field-replaceable, so it can be changed without taking the switch offline. The rear-to-front equivalent is PWR-322-DC-BLUE.

The front-to-rear version is listed as supported in the Arista CCS-720XPM/XDM datasheet for the 720XDM-48T-6SY and the 720XDM-32S-6SY. The PWR-322 series is also listed as a DC PSU option for the 720XP family. Confirm chassis compatibility against the target switch datasheet before ordering.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Hot-swappable, field-replaceable power supply
- DC terminal block input for DC-powered and telco-style sites
- Front-to-rear airflow for hot and cold aisle alignment
- Supported in the Arista 720XDM-48T-6SY and 720XDM-32S-6SY
- Also listed as a DC PSU option for the 720XP family
- High efficiency of 94% at 50% load

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Output power: 300W
- Input voltage: 48-60V DC
- Input current: 6.85A at 40VDC, 5.44A at 60VDC
- Input connector: Terminal block
- Efficiency: 94% at 50% load, 91% at 100% load
- Airflow: Front to rear (RED handle)
- PoE budget: None, system power only
- Form: Hot-swappable, field-replaceable
- Operating temperature (720XPM/XDM system): 0 to 40 C
- Storage temperature (720XPM/XDM system): -40 to 70 C
- Relative humidity (720XPM/XDM system): 5 to 90%
- Operating altitude (720XPM/XDM system): 0 to 3,000 m

FAQs

Q: Does this power supply provide PoE power?
A: No. It supplies 300W of system power only and has no PoE budget. The 1050W power supplies are the PoE options for the 720X family.

Q: What input does it need?
A: It needs a 48-60V DC input connected through a terminal block. Input current is 6.85A at 40VDC and 5.44A at 60VDC.

Q: Which switches is it supported in?
A: The Arista CCS-720XPM/XDM datasheet lists it for the 720XDM-48T-6SY and 720XDM-32S-6SY. The PWR-322 series is also listed as a DC PSU option for the 720XP family. Check the target switch datasheet before ordering.

Q: How does it differ from PWR-322-DC-BLUE?
A: Both are 300W DC supplies. This RED model has front-to-rear airflow and the BLUE model has rear-to-front airflow, so choose the one that matches your rack airflow direction.

Q: Can it be replaced while the switch is running?
A: Yes. It is hot-swappable and field-replaceable, so it can be changed without taking the switch offline when a second supply is installed.

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