User Manual

Specification Value
Rated input current
22.1 A at -40 VDC input
18.2 A at -48 VDC input, nominal input
12.0 A at -72 VDC input
Rated input power (W)
874 W at -40 VDC input
865 W at -48 VDC input, nominal input
854 W at -72 VDC input
Rated input power (BTUs per hour)
2983 at -40 VDC input
2951 at -48 VDC input, nominal input
2912 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
Maximum peak power
800 W at -40 VDC to -72 VDC input
WARNING: To reduce the risk of electric shock or energy hazards:
• This equipment must be installed by trained service personnel.
• 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.
Specifications 165