750 W Power Supplies Technical Specifications

Four 750 W power supply units are available for use with the 8520 Series switches:

Table 1. 750 W Power Supplies: Unpackaged Dimensions

750 W power supply – AC (front-to-back or back-to-front airflow)

750 W power supply – DC (front-to-back or back-to-front airflow)

Height: 4.00 cm (1.57 in)

Width: 8.00 cm (3.15 in)

Depth: 23.7 cm (9.32 in)

Table 2. 750 W Power Supplies: Unpackaged Weight

750 W power supply – AC

front-to-back or back-to-front airflow

0.81 kg (1.79 lb)

750 W power supply – DC

front-to-back or back-to-front airflow

0.85 kg (1.86 lb)

Table 3. 750 W Power Supplies: Packaged Dimensions

750 W power supply – AC (front-to-back or back-to-front airflow)

750 W power supply – DC (front-to-back or back-to-front airflow)

Height: 6.3 cm (2.48 in)

Width: 21.49 cm (8.46 in)

Depth: 40.0 cm (15.75 in)

Table 4. 750 W Power Supplies: Packaged Weight

750 W power supply – AC

front-to-back or back-to-front airflow

1.11 kg (2.45 lb)

750 W power supply – DC

front-to-back or back-to-front airflow

1.15 kg (2.52 lb)

Table 5. Power Specifications (AC Power Supplies)

Voltage input range

100-140V and 200-240V

Nominal input ratings

100-140/200-240V , 10/5.36A max., 50/60Hz

Nominal input current at full loads

5.36A at 100-140V (low-line)

10A at 200-240V (high-line)

Line frequency range

50 and 60 Hz

Maximum inrush current

35 A

Output

+12 V, 61.5 A

+12 Vsb, 3 A

Total output power not to exceed 750W

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

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: 88% at 50% load and 86% at 100% load

High Line: 90% at 50% and 100% loads

Table 6. Power Specifications (DC Power Supplies)

Nominal input

-48 to -60 VDC, 20.4 A

DC Voltage input range

-48 to -60 VDC

Inrush Current

21 A peak

Maximum wire size

14 AWG (1.5 mm2 copper stranded).

DC Output +12.2VDC, 61.5A; +12Vaux, 2.5A

Power (W)

750 W

Table 7. Environmental Specifications (All Power Supply Units)

Operating temperature

0°C to 55°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)