Specifications 69
Rated input power 1380 W at -36V DC input
1365 W at -72V DC input
1350 W at -48V DC, nominal
input
BTUs per hour 4713 at -36V DC input
4662 at -72V DC input
4610 at -48V DC, nominal input
Power supply output
Rated steady-state power 1200 W
Rated peak power 1200 W
CAUTION: This equipment is designed to permit the connection of the earthed conductor of
the DC supply circuit to the earthing conductor at the equipment. See installation instructions.
CAUTION: This equipment is designed to permit the connection of the earthed conductor of
the DC supply circuit to the earthing conductor at the equipment.
If this connection is made, all of the following must be met:
• This equipment should be connected directly to the DC supply system earthing electrode
conductor or to a bonding jumper from an earthing terminal bar or bus to which the DC
supply system earthing electrode conductor is connected.
• This equipment should be located in the same immediate area (such as adjacent cabinets)
as any other equipment that has a connection between the earthed conductor of the same
DC supply circuit and the earthing conductor, and also the the point of earthing of the DC
system. The DC system should be earthed elsewhere.
• The DC supply source is to be located within the same premises as the equipment.
• Switching or disconnecting devices should not be in the earthed circuit conductor between
the DC source and the point of connection of the earthing electrode conductor.
CAUTION: To reduce the risk of electric shock or energy hazards:
• This equipment must be installed by trained service personnel, as defined by the NEC and
IEC 60950-1, Second Edition, the standard for Safety of Information Technology
Equipment.
• Connect the equipment to a reliably grounded safety extra low voltage (SELV) source. An
SELV source is a secondary circuit that is designed so normal and single fault conditions
do not cause the voltages to exceed a safe level (60 V direct current).
• The branch circuit overcurrent protection must be rated 20A.
Hot-plug power supply calculations
For hot-plug power supply specifications and calculators to determine electrical and heat loading for the
server, refer to the HP Enterprise Configurator website (http://h30099.www3.hp.com/configurator/
).
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