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| Model: | PWR-C2-640WDC= Catalyst 3650 Series Spare Power Supply |
| Detail: | 640W DC Config 2 Power Supply Spare |
Flash Sale end in:
Available on backorder

Available on backorder
Available on backorder
Available on backorder
Available on backorder
Available on backorder
We want you to be happy with your purchase and we apologize if it is not. For whatever reason that you are not satisfied, we would be most happy to provide exchanges and returns for all items purchased from us if the following conditions are met.
All exchanges and returns would need to be raised within 10 days of the invoice date for Singaporeorders, and 20 days for overseas orders. For local deliveries, there is an option to exchange at any of our boutiques within Singaporeor through our online portal at www.company.com. All requests for returns however, would need to be strictly made online at www.company.com for both local and overseas deliveries.
All exchanges and returns would need to be raised within 10 days of the invoice date for Singaporeorders, and 20 days for overseas orders. For local deliveries, there is an option to exchange at any of our boutiques within Singaporeor through our online portal at www.company.com. All requests for returns however, would need to be strictly made online at www.company.com for both local and overseas deliveries.
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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