Safety and regulatory information

Intel® Product Safety and Regulatory Compliance
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Connection with a DC (Direct Current) source should only be performed by trained service
personnel. The server with DC input is to be installed in a Restricted Access Location in
accordance with articles 110-16, 110-17, and 110-18 of the National Electric Code,
ANSI/NFPA 70. The DC source must be electrically isolated by double or reinforced
insulation from any hazardous AC source.
Main DC power disconnect: You are responsible for installing a properly rated DC power disconnect
for the server system. This mains disconnect must be readily accessible, and it must be labeled as
controlling power to the server. The circuit breaker of a centralized DC power system may be used as
a disconnect device when easily accessible and should be rated no more than 10 amps.
Grounding the server: To avoid the potential for an electrical shock hazard, you must reliably
connect an earth grounding conductor to the server. The earth grounding conductor must be a
minimum 18AWG connected to the earth ground stud(s) on the rear of the server. The safety ground
conductor should be connected to the chassis stud with a Listed closed two-hole crimp terminal having
5/8 inch pitch. The nuts on the chassis earth ground studs should be installed with a 10 in/lbs torque.
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.
Over-current protection: Over-current protection circuit breakers must be provided as part of each
host equipment rack and must be incorporated in the field wiring between the DC source and the
server. The branch circuit protection shall be rated minimum 75Vdc, 10 A maximum 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.
4.4 Power Cord Usage Guidelines
WARNING
Do not attempt to modify or use an AC power cord set that is not the exact type required. You must
use a power cord set that meets the following criteria:
• Rating: In the U.S. and Canada, cords must be UL (Underwriters Laboratories, Inc.)
Listed/CSA (Canadian Standards Organization) Certified type SJT, 18-3 AWG (American Wire
Gauge). Outside of the U.S. and Canada, cords must be flexible harmonized (<HAR>) or VDE
(Verband Deutscher Electrotechniker, German Institute of Electrical Engineers) certified cord
with 3 x 0.75 mm conductors rated 250 VAC (Volts Alternating Current).
• 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 Listed and rated 125% of overall current
rating of the server.
• Connector, server end: The connectors that plug into the AC receptacle on the server must be
an approved IEC (International Electrotechnical Commission) 320, sheet C13, type female
connector.
• Cord length and flexibility: Cords must be less than 4.5 meters (14.76 feet) long.