Table 291: Power Specifications (continued)
Power supply cord gauge
18 AWG (0.75 mm2) up to 6 feet or 2 meters
or
16 AWG (1.0 mm2) over 6 feet
Efficiency
Low Line: 85% at 50% load and 88% at 100% load
High Line: 86% at 50% load and 89% at 100% load
Table 292: 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/s2 (3 G)
Summit 300 W DC Power Supply (Model 10933 and 10944)
Table 293: 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 294: 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 mm2) copper stranded
DC Output
12 V , 25 A/3.3 V , 3.0 A
DC Output Power (W)
300 W
Table 295: Environmental Specifications
Operating temperature
0°C to 50°C (normal operation)
Storage temperature
-40°C to 70°C
Summit 300 W DC Power Supply (Model 10933 and
10944)
Technical Specifications
454 ExtremeSwitching Hardware Installation Guide
