Table 256: Power Specifications
Voltage input range 85 to 264 V
Nominal input ratings 100 to 240 V , 50 to 60 Hz, 5 A
Nominal input current at full loads 4.2 A @ 90 V (low-line)
1.7 A @ 230 V (high-line)
Line frequency range 47 to 63 Hz
Maximum inrush current 30 A
Output 12 V , 25 A max, 300 Watts
3.3 V , 3.03 A max, 10 Watts
Power supply input socket IEC 320 C14
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 393.
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
Eciency Low Line: 85% at 50% load and 88% at 100% load
High Line: 86% at 50% load and 89% at 100% load
Table 257: 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 258: 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 259: Power Specifications
Nominal Input –40 to –72 V, 9 A
DC Voltage Input Range 18V to -72V
Technical Specifications
ExtremeSwitching and Summit Switches: Hardware Installation Guide 377