Arista PWR-3001-DC-RED | 3000W DC Power Supply for 7280R3, Forward Airflow

Q: Which Arista switches are compatible with the PWR-3001-DC-RED?
A: The PWR-3001-DC-RED is designed for Arista 7280R3 series data centre switches, including models like the DCS-7280PR3-24 and DCS-7280DR3-24. It is a 1RU DC power supply with forward airflow, identified by its red handle.

Q: What does the red handle indicate on this power supply?
A: The red handle indicates forward airflow direction, meaning air flows from the front (port side) to the rear (fan side) of the switch. This is critical for proper thermal management and must match the airflow direction of your fans and other PSUs in the same chassis.

Q: Can this power supply be hot-swapped?
A: Yes, the PWR-3001-DC-RED supports hot-swapping, allowing you to replace or add power supplies without shutting down the switch. This ensures continuous operation and supports N+1 redundancy configurations for high availability deployments.

Q: What type of wiring is required for DC installation?
A: The power supply requires 2-4 AWG stranded copper wiring for both DC input and primary ground connections. Agency-approved compression lugs with 5/16" mounting holes are needed for proper termination. Always follow local electrical codes and Arista installation guidelines.

Q: How efficient is the PWR-3001-DC-RED power supply?
A: The power supply operates at over 94% efficiency, reducing energy consumption and heat generation in the data centre. This high efficiency contributes to lower operational costs and improved environmental performance for your network infrastructure.