Installation Guide

Table 490: Power Specifications (continued)
Power cord input plug IEC 320 C13
Power cord wall plug Refer to Power Cord Requirements for AC-Powered Switches
and AC Power Supplies on page 653.
Power supply cord gauge 18 AWG (0.75 mm
2
) up to 6 feet or 2 meters
or
16 AWG (1.0 mm
2
) over 6 feet
Eciency 84% typical at full load, high line
Table 491: Environmental Specifications
Operating temperature 0°C to 45°C (normal operation)
Storage temperature -40°C to 70°C
Operating humidity 20% to 90% relative humidity, non-condensing
Operational shock 30 m/s
2
(3 G)
Summit 450 W DC Power Supplies
The following tables list the specifications of the DC power supplies for use with the Summit X480-24x,
X480-48x, and Summit X480-48t:
Table 492: Physical Specifications
Dimensions Height: 1.5 inches (3.8 cm)
Width: 3.1 inches (7.8 cm)
Depth: 13.3 inches (33.8 cm)
Weight 3.22 lb (1.46 kg)
Table 493: Power Specifications
Nominal Input
–48 to –60 V , 24 A
DC Voltage Input Range
–40 to –75 V
Maximum Input Amperages
13.5 A @ 40 V
11.2 A @ 48 V
7.5 A @ 72 V
Inrush Current 10 A peak
Inrush Energy 1.5 A
2
S
Minimum wire size 14 AWG (1.5 mm
2
) copper stranded
Technical Specifications Summit 450 W DC Power Supplies
Summit Family Hardware Installation Guide 637