Installation Guide

Table 481: 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 Low Line: 85% at 50% load and 88% at 100% load
High Line: 86% at 50% load and 89% at 100% load
Table 482: Environmental Specifications
Operating temperature 0°C to 50°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 300 W DC Power Supply (Model 10933 and 10944)
Table 483: Physical Specifications
Dimensions Height: 1.57 inches (4.0 cm)
Width: 3.15 inches (8.0 cm)
Depth: 9.5 Inches (24.1 cm)
Weight 1.83 lb (0.83 kg)
Table 484: Power Specifications
Nominal Input –40 to –72 V, 9 A
DC Voltage Input Range
18V to -72V
Maximum Input Amperages
9 A @ 40 V
7.5 A @ 48 V
5 A @ 72 V
Inrush Current
82 A at 72 V peak
Minimum wire size 14 AWG (1.5 mm
2
) copper stranded
Summit 300 W DC Power Supply (Model 10933 and
10944) Technical Specifications
634 Summit Family Hardware Installation Guide