Cisco PWR-C2-640WDC
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Cisco PWR-C2-250WAC
Cisco PWR-C2-250WAC= 250W AC Config 2 Power Supply Spare
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Cisco C4KX-PWR-750AC-R
Cisco C4KX-PWR-750AC-R= 750W AC Power Supply for Catalyst 4500-X Series Switches

Cisco PWR-C2-640WDC= 640W DC Config 2 Power Supply Spare

Cisco PWR-C2-640WDC= Power Supply Description

The Cisco PWR-C2-640WDC= is a 640W DC power supply spare for Cisco Catalyst 3650 Series network switches. It is a hot-swappable module that provides redundant power to the switch, ensuring continuous operation. PWR-C2-640WDC= is 640W DC Config 2 Power Supply Spare

Model: PWR-C2-640WDC= Catalyst 3650 Series Spare Power Supply
Detail: 640W DC Config 2 Power Supply Spare

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Quick Specs of Cisco PWR-C2-640WDC= Power Supply

Figure 1 shows the appearance of PWR-C2-640WDC=.

Table 1 shows the Quick Specs.

Product Code PWR-C2-640WDC=
Power Supply Rated Maximum 640W
Total Output BTU (Note: 1000 BTU per hr = 293 W) 2188 BTU/hr, 640W
Input-Voltage Range and Frequency

(Note: ±10% of “Input-Voltage Range”)

 -36VDC to -72VDC
Input Current 21 – 10.5 A
Output Ratings 12V @ 20.83A

-54V @ 7.36A
Output Holdup Time > 2ms@-48VDC
Power-Supply Input Receptacles Terminal strip
Power Cord Rating 20A @ 100VDC
Physical Specifications (H x W x D): 1.58 X 3.75 X 11.75 in (4.0 x 9.5 x 29.8 cm)

Weight: 2.75 lb

(1.25 kg)

PWR-C2-640 WDC= Specification
Power Supply Rated Maximum 640W
Total Output BTU (Note: 1000 BTU per hr = 293 W) 2188 BTU/hr, 640W
Input-Voltage Range and Frequency

(Note: ±10% of “Input-Voltage Range”)

 -36VDC to -72VDC
Input Current 21 – 10.5 A
Output Ratings 12V @ 20.83A

-54V @ 7.36A
Output Holdup Time > 2ms@-48VDC
Power-Supply Input Receptacles Terminal strip
Power Cord Rating 20A @ 100VDC
Physical Specifications (H x W x D): 1.58 X 3.75 X 11.75 in (4.0 x 9.5 x 29.8 cm)

Weight: 2.75 lb

(1.25 kg)
Operating Temperature For the operating temperature ranges at various altitudes of AC and DC power supply module powered switches, see Table 1.
Storage Temperature -40 to 158°F (-40 to 70°C)
Relative Humidity Operating and Nonoperating Noncondensing 5 to 96% noncondensing
Altitude 16,400 ft. (5,000 meters)
MTBF Calculated MTBF must be greater than 300,000 using Telcordia SR-332, Method 1, Issue 3. Demonstrated MTBF is 500,000 hr (with 90% confidence level).
EMI and EMC Compliance “AC OK”: Input power to the power supply is OK

“PS OK”: Output power from the power supply is OK
Safety Compliance For the operating temperature ranges at various altitudes of AC and DC power supply module powered switches, see Table 1.
LED Indicators -40 to 158°F (-40 to 70°C)

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