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Airflow Requirements
Note
Some of the power supply modules have rating capabilities that exceed the switch requirements. When
calculating your power requirements, use the switch requirements to determine the amount of power that is
required for the power supplies.
To minimize the possibility of circuit failure, make sure that each power-source circuit that is used by the
switch is dedicated to the switch.
Note
For AC input application, please refer to the following statement:
Warning
Statement 1005 Circuit Breaker
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective devices are rated not greater than 20A (North America), 16A (Europe), and 13A (UK).
Note
For DC input application, please refer to the following statement:
Warning
Statement 1005 Circuit Breaker
This product relies on the building's installation for short-circuit (overcurrent) protection.
• Ensure that the protective devices are rated not greater than 30A when the switch is powered with regular
• Ensure that the protective devices are rated not greater than 10A when the switch is powered with HVDC
Note
We recommend 8-AWG wire for DC installations in the U.S.
Note
For the power cables to use with the power supplies, see
Airflow Requirements
The switch is positioned with its ports in either the front or the rear of the rack depending on your cabling
and maintenance requirements. You must have fan and power supply modules that move the coolant air from
the cold aisle to the hot aisle in one of the following ways:
Cisco Nexus 9348GC-FXP-B1 ACI-Mode Hardware Installation Guide
8
DC power supplies (rated 48-60VDC).
power supplies (rated 240-350VDC).
Power Cable Specifications, on page
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