Arista PWR-1011-AC-RED | 1000W AC Power Supply, 1RU, Front-to-Rear Airflow

Q: Which Arista switches are compatible with the PWR-1011-AC-RED?
A: This power supply is specifically designed for the Arista 7280R3 Series data center switches, including models such as the 7280CR3, 7280SR3, and 7280R3K. It provides 1000W of AC power with front-to-rear airflow to match switches configured with forward airflow fans.

Q: What does the RED designation mean in the part number?
A: The RED suffix indicates front-to-rear (forward) airflow direction. Arista uses color coding to match power supplies with fan airflow: RED for forward airflow and BLUE for reverse airflow. Always match the power supply airflow with your switch fan configuration to ensure proper cooling.

Q: Can I replace this power supply without shutting down the switch?
A: Yes, the PWR-1011-AC-RED is hot-swappable, allowing field replacement without powering down the switch. When deployed in a 1+1 redundant configuration with a second power supply, you can replace a failed unit while maintaining continuous switch operation.

Q: What is the efficiency rating and why does it matter?
A: This power supply achieves 93% Platinum efficiency, meaning it converts AC power to DC with minimal energy loss. Higher efficiency reduces heat generation, lowers cooling requirements, and decreases operational electricity costs in data center environments.

Q: What input voltage does this power supply support?
A: The PWR-1011-AC-RED supports a wide input voltage range of 100-240V AC at 50/60Hz, making it compatible with standard power infrastructure in most regions worldwide. This universal voltage support simplifies deployment across international data centers.