HP Carrier-grade cc2300 Product Manual page 10

Overcurrent protection: The server is designed for an AC line voltage
source with up to 20 amperes of overcurrent protection per cord feed. If
the power system for the equipment rack is installed on a branch circuit
with more than 20 amperes of protection, you must provide
supplemental protection for the server. The overall current rating of a
configured server is less than 4 amperes.
If a DC power supply is installed:
The DC source must be electrically isolated by double or reinforced
insulation from any hazardous AC or DC source. The DC source must
be capable of providing up to 300 mW of continuous power. Connection
with a DC source should only be performed by qualified personnel.
Mains DC power disconnect: You are responsible for installing a
DC power disconnect for the entire rack unit. This mains disconnect
must be readily accessible, and it must be labeled as controlling power to
the entire unit, not just to the servers(s).
Grounding the rack installation: To avoid the potential for an electrical
shock hazard, you must include a third wire safety ground conductor
with the rack installation. The safety grounding conductor must be a
minimum 14AWG connected to the chassis on the rear of the server.
The safety ground conductor provides proper grounding only for the
server. You must provide additional, proper grounding for the rack and
other devices installed in it.
Overcurrent protection: Overcurrent protection circuit breakers must
be provided as part of each host equipment rack and must be installed
between the DC source and the server. The server is designed for a
DC line voltage power source with up to 10 amperes of overcurrent
protection per feed pair. If the DC power system for the equipment rack
is installed with more than 10 amperes of protection, you must provide
supplemental protection for the server. The overall current rating of a
configured server is less than 7 amperes.
WARNING
Do not attempt to modify or use an AC power cord that is not the exact
type required. You must use a power cord that meets the following
criteria:
1. Rating: For U.S./Canada cords must be UL Listed/CSA Certified
type SJT, 18-3 AWG. For outside U.S./Canada cords must be
flexible harmonized (<HAR>) or VDE certified cord with
3 x 0.75mm conductors rated 250 VAC.
2. Connector, wall outlet end: Cords must be terminated in
grounding-type male plug designed for use in your region. The
connector must have certification marks showing certification by an
agency acceptable in your region and for U.S. must be rated
125% of overall current rating of the server.
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cc2300 Carrier Grade Server Product Guide