Rated input voltage
-40 VDC to -72 VDC
-48 VDC nominal input
Rated input current
26 A at -40 VDC input
19 A at -48 VDC input, nominal
input
12.4 A at -72 VDC input
Rated input power (W)
936 W at -40 VDC input
912 W at -48 VDC input,
nominal input
900 W at -72 VDC input
Rated input power (BTUs per
hour)
3194 at -40 VDC input
3112 at -48 VDC input,
nominal input
3071 at -72 VDC input
Power supply output
Rated steady-state power (W)
800 W at -40 VDC to -72 VDC
Maximum peak power (W)
800 W at -40 VDC to -72 VDC
WARNING:
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 Secondary circuit source. A Secondary circuit has
no direct connection to a Primary circuit and derives its power from a transformer, converter, or
equivalent isolation device.
• The branch circuit overcurrent protection must be rated 27 A.
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 must 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 must 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 point of earthing of the DC system. The DC
system must be earthed elsewhere.
• The DC supply source is to be located within the same premises as the equipment.
• Switching or disconnecting devices must not be in the earthed circuit conductor between the DC
source and the point of connection of the earthing electrode conductor.
76
Specifications
