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Arista

Arista PWR-861-AC-RED | 7200S 800W AC Power Supply, Front-to-Rear Airflow

PWR-861-AC-RED

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Description

This is an 800W AC power supply module with front-to-rear airflow, supplied as a spare or replacement for Arista ZTX and 7200S / 5500-series platforms. The red (RED) designation marks it as a hot-swappable, redundant module, so a failed unit can be exchanged without taking the chassis offline when a second supply is installed.

The module delivers 800W of AC output and its front-to-rear airflow is designed to match the chassis fan direction. The Arista 7200S quick start guide names it as the supported AC power supply for the ZTX-7250S-16S-F, a chassis that uses two power supplies and a 3+1 fan arrangement with front-to-rear airflow, which keeps the supply aligned with the cooling path.

Choose this part when you need to keep an existing ZTX-7250S-16S-F or related 7200S / 5500-series system running with matched AC power. Airflow direction should always match the rest of the chassis to avoid cooling problems.

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

Features

- Hot-swappable AC power supply module
- Front-to-rear airflow to match the chassis fan direction
- Redundant power supply design, with two supplies used in the ZTX-7250S-16S-F
- 800W AC output for the ZTX-7250S-16S-F
- Suited to spare and replacement use on 7200S and 5500-series platforms

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

- Part number: PWR-861-AC-RED
- Output power: 800W AC
- Airflow: Front-to-rear
- Module type: Hot-swappable, redundant (RED) power supply
- Supported appliance: ZTX-7250S-16S-F (7200S Series)
- Power supplies per ZTX-7250S-16S-F chassis: 2
- Fans in ZTX-7250S-16S-F: 3+1
- Chassis airflow (ZTX-7250S-16S-F): Front to rear
- Supported platforms: ZTX and Arista 5500 / 7200 series

FAQs

Q: Which Arista platforms use this power supply?
A: It is the supported AC power supply for the ZTX-7250S-16S-F in the 7200S Series, and is listed as a spare for ZTX and Arista 5500 / 7200 series platforms.

Q: What airflow direction does it have?
A: It has front-to-rear airflow. The chassis fans and all installed power supplies should use the same airflow direction.

Q: Is this an AC or DC power supply?
A: It is an 800W AC power supply. DC supplies are separate part numbers.

Q: Can it be replaced while the chassis is running?
A: Yes, it is a hot-swappable redundant module. In a chassis with two supplies installed, one can be exchanged while the other carries the load.

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