Power Supply Specifications

3000 W AC-Input Power Supply Specifications

The following table lists specifications for the 3000 W AC input power supply:
Table 1  3000 W AC-Input Power Supply Specifications
Specification Description

AC-input type

Autoranging input with power factor correction.
Note    Power factor correction is a standard feature on AC-input power supplies. Power factor correction reduces the reactive component in the source AC current, allowing higher power factors (typically 99 percent or better) and lower harmonic current components.

AC-input voltage

Low-line (120 VAC nominal)—90 VAC (min) to 132 VAC (max)

High-line (230 VAC nominal)—170 VAC (min) to 264 VAC (max)

AC-input current

16 A @ 240 VAC (3000 W output)

16 A @ 120 VAC (1300 W output)

AC-input frequency

50/60 Hz (nominal) (±3% for full range)

Branch circuit requirement

Each chassis power supply should have its own dedicated, fused-branch circuit:
  • North America—20 A.
  • International—Circuits sized to local and national codes.
  • All AC power supply inputs are fully isolated:
    • Source AC can be out of phase between multiple power supplies in the same chassis, which means that PS1 can be operating from phase A and PS2 can be operating from phase B.
    • For high-line operation, the power supply operates with the hot conductor wired to a source AC phase and the neutral conductor wired either to ground or to another source AC phase as long as the net input voltage is in the range of 170 to 264 VAC.
    • Source AC can be out of phase between AC inputs on power supplies that are equipped with multiple AC inputs, which means that power cord 1 can be plugged into phase A and power cord 2 can be plugged into phase B.

Power supply output capacity

1400 W maximum (100 to 120 VAC)

3000 W maximum (200 to 240 VAC)

Power supply output

  • 100 to 120 VAC operation

    • 25.0 A @ +3.3 V

    • 5 A @ +5 V

    • 12 A @ +12 V

    • 27.89 A @ +42 V

  • 200 to 240 VAC operation

    • 25.0 A @ +3.3 V

    • 5 A @ +5 V

    • 12 A @ +12 V

    • 65.98 A @ +42 V

Output holdup time

20 ms minimum.

kVA rating1

3520 W (total input power) or 3.6 kVA (high-line operation).

Heat dissipation

12,046 BTU /hour (approx.)

Weight

6 lb (2.72 kg)

1 The kVA rating listed for the power supply should be used as the sizing criteria for both UPS outputs as well as standard circuits and transformers to power a switch

3000 W Power Supply AC Power Cords

The following table lists the specifications for the AC power cords that are available for the 3000 W AC-input power supply. The table also includes references to power cord illustrations.


Note
All 3000 W power supply power cords:

  • Are 14 feet (4.3 meters) in length.

  • Have an IEC60320/C19 appliance connector at one end.

Table 2  3000 W Power Supply AC Power Cords

Locale

AC Source Plug Type

Cordset Rating

Power Cord Part Number and Reference Illustration

Argentina

IRAM 2073

16 A, 250 VAC

Figure 1. CAB-IR2073-C19-AR= (Argentina)



Australia, New Zealand

AU20S3

16 A, 250 VAC

Figure 2. CAB-AC-16A-AUS= (Australia, New Zealand)

Brazil

EN60320 / C19

16 A, 250 VAC

Figure 3. UCSB-CABL-C19-BRZ= (Brazil)

People's Republic of China

GB16C

16 A, 250 VAC

Figure 4. CAB-AC16A-CH= (People's Republic of China)

Continental Europe

CEE 7/7

16 A, 250 VAC

Figure 5. CAB-AC-2500W-EU= (Continental Europe)

India

EN60320/C19

16 A, 250 VAC

Figure 6. CAB-SABS-C19-IND= (India)

International

IEC 309

16 A, 250 VAC

Figure 7. CAB-AC-2500W-INT= (International)

Israel

SI16S3

16 A, 250 VAC

Figure 8. CAB-AC-2500W-ISRL= (Israel)

Italy

CEI 23-16/7

16 A, 250 VAC

Figure 9. CAB-7513ACI= (Italy)

Japan, North America (Nonlocking Plug) 200 to 240 VAC Operation

NEMA 6-20

16 A, 250 VAC

Figure 10. CAB-AC-2500W-US1= (Japan, North America [Nonlocking Plug] 200 to 240 VAC operation)

Japan, North America (Locking Plug)200 to 240 VAC Operation

NEMA L6-20

16 A, 250 VAC

Figure 11. CAB-AC-C6K-TWLK= (Japan, North America [Locking Plug] 200 to 240 VAC operation)



Note   

The form factor for these two plugs differ but functionally they are the same.

Japan, North America 100 to 120 VAC operation 2

NEMA 5-20

20 A, 125 VAC

Figure 12. CAB-7513AC= (Japan, North America100 to120 VAC operation)

North America

NEMA L5 -20

20 A, 125 VAC

Figure 13. CAB- L520P - C19 -US= (North America)

Power Distribution Unit (PDU) 3

IEC 60320 C19

IEC 60320 C20

16 A, 250 VAC

Figure 14. CAB-C19-CBN= (PDU)

South Africa

IEC 884-1

16 A, 250 VAC

Figure 15. CAB-7513ACSA (South Africa)

Switzerland

SEV 5934-2 Type 23

16 A, 250 VAC

Figure 16. CAB-ACS-16= (Switzerland)
2 The 3000 W power supply operating on 110 VAC delivers 1400 W.
3 The PDU power cable is designed for users who power their switch from a PDU. The end of the cable that plugs into the chassis power supply has a C19 connector; the other end of the cable that connects to the PDU has a C20 connector .
Related Concepts
Power Supply Module
Power Entry Module
Related Tasks
Removing and Installing Power Supplies
Troubleshooting the Power Supply Module

Chassis and Module Power and Heat Values

The following tables provide the power and heat dissipation data for the chassis and modules. Unless otherwise noted, the information in the tables is measured under fully loaded conditions (transceivers installed). Typical numbers are approximately 20 percent below the numbers listed in these tables.

Note

Module power is the output from the power supply (internal to the system). The AC-input power is the input from the outlet to the power supply. The percentage difference between the two values is the efficiency of the power supply.

Table 3 Power Requirements and Heat Dissipation—Chassis and Fan Trays

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

C6807-XL-FAN

5

260

260

887.15

Table 4 Power Requirements and Heat Dissipation—Supervisor Engines

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

VS-S2T-10G

6.80

353.60

353.60

1206.53

VS-S2T-10G-XL

10.73

557.96

557.96

1903.83

C6800-SUP6T

8.12

341

341

1370.18

C6800-SUP6T-XL

8.43

354

354

1422.49

Table 5 Power Requirements and Heat Dissipation—Policy Feature Cards

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

VS-F6K-PFC4

2.5

130

130

507.45

VS-F6K-PFC4XL

2.86

148.72

148.72

507.45

Table 6 Power Requirements and Heat Dissipation—Distributed Forwarding Cards (DFCs)

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

WS-F6K-DFC4-E

Distributed Forwarding Card E

2.38

123.76

123.76

422.28

WS-F6K-DFC4-EXL

Distributed Forwarding Card EXL

2.74

142.48

142.48

486.16

WS-F6K-DFC4-A

Distributed Forwarding Card A

2.64

137.28

137.28

468.41

WS-F6K-DFC4-AXL

Distributed Forwarding Card AXL

2.76

143.52

143.52

489.71

Table 7 Power Requirements and Heat Dissipation—Gigabit Ethernet Modules

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

WS-X6724-SFP

2.98

154.96

154.96

528.74

WS-X6748-SFP

6.07

315.64

315.64

1077.00

WS-X6848-SFP

8.08

420.16

420.16

1433.64

Table 8 Power Requirements and Heat Dissipation—10-Gigabit Ethernet Modules

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU /HR)

WS-X6816-10G

(WS-X6816-10G = WS-X6716-10GE + DFC4E)

11.99

623.48

623.48

2127.40

WS-X6816-10G XL

12.26

637.52

637.52

2175.30

WS-X6908-10G

10.29

535.08

535.08

1828.22

WS-X6908-10 XL

10.65

553.8

553.8

1889.64

WS-X6816-10T

10.61

551.72

551.72

1882.54

WS-X6816-10TXL

10.97

570.44

570.44

1946.42

Table 9 Power Requirements and Heat Dissipation—10/100/1000 Ethernet Switching Modules

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

WS-X6748-GE-TX

7.75

403.00

403.00

1375.09

WS-X6848-GE-TX

9.76

507.52

507.52

1731.72

Table 10 Power Requirements and Heat Dissipation—40-Gigabit Ethernet Switching Modules

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

WS-X6904-40G-2T

11.15

579.8

598.52

1978.36

WS-X6904-40G-2TXL

11.51

598.52

598.52

2042.23

Table 11 Power Requirements and Heat Dissipation—Service Modules

Model Number/ Module Type

Module Current (A) @ 52V

Module Power (Watts) (Power-Requested)

AC-Input Power (Watts) (Power-Allocated)

Heat Diss. (BTU/HR)

NAM3

8.83

370.86

370.86

1265.42

ASA-SM

8.83

370.86

370.86

1265.42

WiSM2

5.35

224.70

224.70

766.70

ACE-30

7.98

335.16

335.16

1143.61