4-5
Cisco SCE8000 10GBE Installation and Configuration Guide
OL-21054-04
Chapter 4 Installing the Cisco SCE8000 Chassis
Power Connection Guidelines
Power Connection Guidelines
This section provides the guidelines for connecting the Cisco SCE8000 AC and DC power supplies to
the site power source.
• AC-Powered Systems, page 4-5
• DC-Powered Systems, page 4-11
• Site Planning Checklist, page 4-13
AC-Powered Systems
• Each chassis power supply should have its own dedicated branch circuit.
• Circuits must be protected by a dedicated two-pole circuit breaker.
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For North America, the circuit breaker should be rated at 20A.
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For everywhere else, the circuit breaker should be sized according to the power supply input
rating and local or national code requirements.
• AC power receptacles used to plug in the chassis must be the grounding type. The grounding
conductors that connect to the receptacles should connect to protective earth ground at the service
equipment.
Warning
Never defeat the ground conductor or operate the equipment in the absence of a suitably installed
ground conductor. Contact the appropriate electrical inspection authority or an electrician if you are
uncertain that suitable grounding is available.
Note The plug-socket combination must be accessible at all times because it serves as the main disconnecting
device.
Note This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.
Table 4-3 lists the Cisco SCE 8000 AC power specifications.
Table 4-3 Cisco SCE 8000 AC Power Specifications
Specification Acceptable Range
PWR-2700-AC/4 minimum capability 1350 W output (1650 W input)
AC-input power consumption
• Single SCE8000-SCM-E module:
1000 W (8.3 A @ 120 VAC, 4.5 A @ 220 VAC)
• Dual SCE8000-SCM-E modules:
1600 W (13.3 A @ 120 VAC, 7.27 A @ 220 VAC)
AC-input voltage rating Low-line (120 VAC nominal)-85 VAC (min) to 132 VAC (max)
High-line (230 VAC nominal)-170 VAC (min) to 264 VAC (max)