For electrical power ratings on options, refer to the product rating label or the user documentation
supplied with that option.
WARNING! To reduce the risk of personal injury, fire, or damage to the equipment, do not
overload the ac supply branch circuit that provides power to the rack. Consult the electrical
authority with jurisdiction over wiring and installation requirements of your facility.
CAUTION: Protect the server from power fluctuations and temporary interruptions with a
regulating uninterruptible power supply (UPS). This device protects the hardware from damage
caused by power surges and voltage spikes and keeps the system in operation during a power
failure.
When installing more than one server, you may need to use additional power distribution devices
to safely provide power to all devices. Observe the following guidelines:
• Balance the server power load between available ac supply branch circuits.
• Do not allow the overall system ac current load to exceed 80 % of the branch circuit ac current
rating.
• Do not use common power outlet strips for this equipment.
• Provide a separate electrical circuit for the server.
Rack warning and cautions
26 Setup
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