Arista PWR-501AC-R | 500W AC Power Supply, Rear-to-Front Airflow

Q: What does the R designation mean in PWR-501AC-R?
A: The R indicates rear-to-front airflow direction, designed to improve cooling in data center environments that require specific airflow management for optimal thermal performance.

Q: Is the PWR-501AC-R hot-swappable?
A: Yes, this power supply is hot-swappable, allowing for replacement without shutting down the Arista switch, ensuring continuous network operation during maintenance.

Q: Which Arista switches are compatible with the PWR-501AC-R?
A: The PWR-501AC-R is specifically designed for the Arista 7050CX3-32S-D series switches, part of the 7050X3 family of high-performance data center switches.

Q: Can I mix PWR-501AC-R with PWR-501AC-F in the same switch?
A: No, it is not recommended to mix airflow directions. The R model is rear-to-front while the F model is front-to-rear airflow. Both power supplies in a redundant configuration should match the switch chassis airflow design.

Q: What protection features does this power supply include?
A: The PWR-501AC-R includes built-in protection against overvoltage, overcurrent, and overheating to protect both the power supply unit and connected networking equipment from electrical faults.