IBM DS8882F, Introduction And Planning Manual

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Attention: Ensure that there is a local site disconnect and/or isolation means
(such as a service branch circuit breaker, power feed switch, and/or wall socket
outlet to an industrial style plug) for each AC main power cord to a system. The
internal rack (system side) appliance cord coupler is NOT intended to be
connected or disconnected live. Follow local electrical authority site regulations for
proper isolation practices such as Lock Out Tag Out (LOTO) and/or approved
procedures.
Input voltage requirements
When you plan for the power requirements of the storage system, consider the
input voltage requirements.
The following table provides the input voltages and frequencies that the storage
system supports.
Table 36. Single-phase input voltages and frequencies
Characteristic Voltage (single-phase)
Nominal input voltages 200-240 RMS V AC
Minimum tolerated input voltage 180 RMS V AC
Maximum tolerated input voltage 256 RMS V AC
System maximum current rating 14.4 Amps
Recommended wall breaker rating (1 ph) 15 - 20 Amps
1
Steady-state input frequencies 50 ± 3 or 60 ± 3.0 Hz
PLD input frequencies < 20 milliseconds
The battery backup modules are each "Class I" rated for the following voltages and
maximum currents for those voltages.
AC voltage
50 or 60 Hz 200 V 208 V 220 V 230 V 240 V
Maximum
rated current 14.2 Amps 13.7 Amps 14.4 Amps 13.8 Amps 13.2 Amps
Power connector requirements
Ensure that the site where you plan to install the storage system meets the power
connector requirements.
Find the power cord that is appropriate for your site. Ensure that your site meets
the specified power connector requirements. For power cord feature codes, plug
diagrams, and countries in which each plug type is commonly used, refer to
“Feature codes for power cords” on page 70.
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DS8882F Introduction and Planning Guide