Arista PWR-D4-3041-AC-BLUE | 3kW AC/HVDC Power Supply, 1RU, Hot-Swappable, Blue

Q: Which Arista switches are compatible with this power supply?
A: The PWR-D4-3041-AC-BLUE is designed for the Arista 7800R4 Series modular switches, including the 7804R4, 7808R4, 7812R4, and 7816R4 chassis. It provides redundant power for these high-performance AI spine and data center switches.

Q: What voltage inputs does this power supply support?
A: This power supply supports both AC and HVDC inputs with worldwide voltage compatibility. It operates with 277VAC and 380VDC inputs, making it suitable for global data center deployments with diverse power infrastructures.

Q: Can I hot-swap this power supply without shutting down the switch?
A: Yes, the PWR-D4-3041-AC-BLUE is a hot-swappable module that can be replaced without powering down the system. When deployed in redundant configurations, the 7800R4 chassis continues operating while power supplies are serviced or replaced.

Q: What does the blue handle color indicate?
A: The blue handle indicates front-to-rear airflow direction. This color-coding system helps ensure proper airflow alignment within the data center rack and simplifies field identification during installation and maintenance.

Q: How many power supplies are required for the 7800R4 chassis?
A: The minimum number of power supplies depends on the chassis model and redundancy requirements. For non-redundant operation, fewer PSUs are needed, while redundant configurations require additional units. The 7808R4 typically requires 12-16 PSUs for full redundancy depending on the linecard configuration.