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A-5
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-18634-01
Appendix A Technical Specifications
Power Specifications for the Cisco Nexus 7000 Series Devices
grid. For example, if three power supply units are conne cted to a 110-V grid and a 220-V grid, each
power supply outputs 1.2 kW for the 1 1 0-V gr id and 3.0 kW for the 220-V grid. The available power
would be 3.6 kW (1.2 kW + 1.2 kW + 1.2 kW) and the reserve power would be 9.0 kW (3.0 kW +
3.0 kW + 3.0 kW).
• Full redundancy mode—Provides both power-supply redundancy and in put -s ource r edund an cy.
This mode allows you to replace a power supply unit withou t int erru pt ing devi ce opera ti ons or
continue powering the device if one of two grids goes down. T he a va ilable p ower is the l esser
amount of output power for power supply redundancy or input source redundancy.
The amount of power available for use with your Cisco Nexus 7000 Series device depends on the number
of power supply units, input voltage used, and the power mode used. To determine the amount of
available power for 6-kW power supply units, see Tab le A-7. To determine the amount of power
available for 7.5-kW power supply units, see Tab le A-8.
Tab l e A-7 Power Availability for 6-kW Power Supply Units
Combined
mode
Power
supply
redundancy
mode
Input source
redundancy
mode
Full
redundancy
mode
Dual inputs per power supply unit
220-V and 220-V inputs
1 power supply unit 6000 W —3000 W —
2 power supply units 12,000 W 6000 W 6000 W 6000 W
3 power supply units 18,000 W 12,000 W 9000 W 9000 W
4 power supply units124,000 W 18,000 W 12,000 W 12,000 W
220-V and 110-V inputs
1 power supply unit 4200 W —1200 W —
2 power supply units 8400 W 4200 W 2400 W 2400 W
3 power supply units 12,600 W 8400 W 3600 W 3600 W
4 power supply units116,800 W 12,600 W 4800 S 4800 W
110-V and 110-V inputs
1 power supply unit 2400 W —1200 W —
2 power supply units 4800 W 2400 W 2400 W 2400 W
3 power supply units 7200 W 4800 W 3600 W 3600 W
4 power supply units19600 W 7200 W 4800 W 4800 W
Single input per power supply unit
220-V input
1 power supply unit 3000 W — — —
2 power supply units 6000 W 3000 W — —
3 power supply units 9000 W 6000 W — —
4 power supply units112,000 W 9000 W — —
110-V input
1 power supply unit 1200 W — — —