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Arista

Arista PWR-3351-AC-RED | 750X 3300W AC PoE Power Supply, Front-to-Rear

PWR-3351-AC-RED

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Description

The PWR-3351-AC-RED is a hot-swappable 3300W AC power supply module for the Arista 750X Series modular campus switch chassis, covering the CCS-755 5-slot and CCS-758 8-slot models. It supplies both system power and PoE power, which makes it a fit for high-density PoE campus core and aggregation deployments, including 90W 802.3bt devices, Wi-Fi access points and IoT endpoints. Airflow is front to rear, in keeping with the 750X fan modules.

Output depends on the input voltage. The module delivers 3300W from a 220-240 VAC supply and 1400W from a 100-120 VAC supply, drawing up to 16A through an IEC 320 C19 inlet at 50/60 Hz. Typical efficiency is over 94%, to Titanium class. Each PSU needs 20A branch circuit protection, and all PSUs in one chassis must use the same input voltage.

A CCS-755 takes up to 6 power supplies and a CCS-758 up to 10, with a minimum of one per chassis. Three PSUs are recommended for redundancy in a CCS-755 and five in a CCS-758. The power supply itself needs no licence.

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

Features

- Hot-swappable power supply module
- Provides both system power and PoE power to the 750X chassis
- Supports up to 90W PoE per port with sufficient PSUs installed
- Load sharing with N+1 power supply and N+N power source redundancy
- Accepts either 100-120V or 200-240V AC input
- Titanium-class efficiency of over 94%
- Front-to-rear airflow to match the 750X series fan modules

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: 3300W at 220-240 VAC
- Output power at low line: 1400W at 100-120 VAC
- Input voltage: 100-120 V at 16A or 200-240 V at 16A
- Input frequency: 50/60 Hz, single-phase AC
- Input connector: IEC 320 C19
- Efficiency (typical): over 94%, Titanium
- Hot-swappable: Yes
- Airflow: front to rear
- Maximum input current: 16A
- Input branch circuit protection: 20A
- Maximum PSUs per chassis: 6 in CCS-755, 10 in CCS-758
- Recommended PSUs for redundancy: 3 in CCS-755, 5 in CCS-758
- Minimum PSUs per chassis: 1
- Compatible chassis: Arista CCS-755-CH and CCS-758-CH

FAQs

Q: Which chassis does the PWR-3351-AC-RED fit?
A: It fits the Arista 750X Series modular chassis, the 5-slot CCS-755-CH and the 8-slot CCS-758-CH.

Q: How much power does it deliver?
A: It delivers 3300W from a 220-240 VAC input and 1400W from a 100-120 VAC input. Higher-voltage input is needed to get the full 3300W.

Q: What power input and circuit protection does it need?
A: It uses an IEC 320 C19 inlet and draws up to 16A at 50/60 Hz. Each PSU needs 20A branch circuit protection, and all PSUs in a chassis must use the same input voltage.

Q: How many power supplies do I need for redundancy?
A: A chassis needs at least one PSU. For redundancy, 3 PSUs are recommended in a CCS-755 and 5 in a CCS-758, and separate A and B circuits are advised.

Q: Does this power supply support PoE?
A: Yes. It supplies both system power and PoE power, and with enough PSUs installed the chassis can supply up to 90W per PoE port.

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