• PWR-C1-440WDC: 16 –8 A
• PWR-C3-750WDC-R: 25 A
• PWR-C3-750WDC-F: 25 A
Input current
• PWR-C1-440WDC: –36 to –72 VDC
• PWR-C3-750WDC-R: –36 to –72 VDC
• PWR-C3-750WDC-F: –36 to –72 VDC
DC input voltage
• PWR-C1-440WDC: –56 V@7.86 A
• PWR-C3-750WDC-R:62 A @ 12 VDC, 3 A @
3.3 VDC
• PWR-C3-750WDC-F: 62 A @ 12 VDC, 3 A @
3.3 VDC
Output ratings
• PWR-C1-440WDC: –36 VDC (minimum), –48
VDC (nominal), –72 VDC (maximum)
• PWR-C3-750WDC-R: -48 VDC (nominal) (-40.5
VDC to -56 VDC)
• PWR-C3-750WDC-F: -48 VDC (nominal) (-40.5
VDC to -56 VDC)
Voltage range domestic
• PWR-C1-440WDC: –36 VDC (minimum), –48
VDC (nominal), –72 VDC (maximum)
• PWR-C3-750WDC-R: -60 VDC (nominal) (-55
VDC to -72 VDC)
• PWR-C3-750WDC-F: -60 VDC (nominal) (-55
VDC to -72 VDC)
Voltage range international
PWR-C1-440WDC 1841 BTUs per hour, 540 WTotal input BTU
17
PWR-C1-440WDC: 1502 BTUs per hour, 440 WTotal output BTU
1
PWR-C1-440WDC: 12 AWG or 8 AWGWire gauge for ground connection
PWR-C1-440WDC: 20 ABranch circuit protection
17
The total input and total output BTU ratings refer to input power to the power supply and output power
to the switch. The BTU ratings are based on –36 VDC.
Table 37: Fan Module Environmental and Physical Specifications for Catalyst WS-C3850 Switch Models
Environmental Ranges
23 to 176°F (–5 to 80°C)
Operating temperature
Catalyst 3850 Switch Hardware Installation Guide
125OL-26779-05
Technical Specifications
Technical Specifications