Power Connection Guidelines For Ac-Powered Systems - Cisco 8600 Series Manual

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Power Connection Guidelines for AC-Powered Systems

When connecting AC-input Power Supply Units (PSUs) to the site power source, observe the guidelines

described here.

Warning

• Ensure that the AC-input power supply module has a detachable power cord.

• Each chassis power supply should have a separate, dedicated branch circuit.

• If you are using a 208 or 240 VAC power source in North America, note that such lines are considered

Warning

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Statement 1028 More Than One Power Supply

This unit might have more than one power supply connection. To reduce risk of electric shock, remove all

connections to de-energize the unit.

• North America

• PSU3.2KW-ACPI only—Power supply modules require a 20 A circuit.

• International—Circuits should be sized according to local and national codes.

hot and the circuit must be protected by a two-pole circuit breaker.

Statement 1005 Circuit Breaker

This product relies on the building's installation for short-circuit (overcurrent)

protection. To reduce risk of electric shock or fire, ensure that the protective

device is rated not greater than:

• 20 A circuit breaker for an AC-input power supply module.

• 50 A DC-rated circuit breaker for each input of a DC-input power supply module, for safety purposes

- irrespective of whether the inputs are power from a single or separate DC sources.

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. Statement 1045

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