Hitachi Advanced Server HA820 G2 User Guide 67
from the DC power source and must be rated no more than 45 A.
• The PDU output must have a shut-off switch or a circuit breaker to disconnect power for each
power supply. To completely remove power from the power supply, disconnect power at the
PDU. The end product may have multiple power supplies. To remove all power from the product,
disconnect the power for each power supply.
• In accordance with applicable national requirements for Information Technology Equipment and
Telecommunications Equipment, this power supply only connects to DC power sources that are
classified as SELV or TNV. Generally, these requirements are based on the International
Standard for Information Technology Equipment, IEC 60950-1/IEC 62368-1. In accordance with
local and regional electric codes and regulations, the DC source must have one pole
(Neutral/Return) reliably connected to earth ground.
•
You must connect the power supply ground screw located on the front of the power supply to a
suitable ground (earth) terminal. In accordance with local and regional electric codes and
regulations, this terminal must be connected to a suitable building ground (earth) terminal. Do not
rely on the rack or cabinet chassis to provide adequate ground (earth) continuity.
Prerequisites
Before you install this option, make sure that you have the following items available:
•
No. 1 Phillips screwdriver
•
If you are not using an input power cord option, the power supply cabling must be made in
consultation with a licensed
electrician and be compliant with local code.
•
Optional P36877-B21 lug kit can be purchased from an authorized reseller for use with
customer-supplied power cables. (The power cable and lug kit listed below can only be used with
the 1600 W -48 VDC power supply.)
•
If you are using an input power cord option, the P22173-B211600 W DC PSU power cable kit can
be purchased from an authorized reseller. (The power cable and lug kit listed below can only be
used with the 1600 W -48 VDC power
supply.)
1600 W -48VDC power cable color codes
Cable color Description
Black Positive return
Red Negative input voltage
Green/yellow Safety ground
Procedure
1. If necessary, remove the power supply blank.
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