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A-4
Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
OL-19593-01
Appendix A Technical Specifications
Fan Module Specifications
Fan Module Specifications
Ta b l e A-4 Power Specifications for DC-Power 24- and 48-Port Switches
Power Specifications
Maximum output power C3KX-PWR-440WDC: 440 W
Input current C3KX-PWR-440WDC: 16 – 8 A
DC input voltage C3KX-PWR-440WDC: –36 to –72 VDC
Output ratings C3KX-PWR-440WDC: –56 V@7.86 A
Voltage range domestic C3KX-PWR-440WDC: –36 VDC (minimum)
–48
VDC (nominal), –72 VDC (maximum)
Voltage range international C3KX-PWR-440WDC: –36 VDC (minimum)
–60
VDC (nominal), –72 VDC (maximum)
Total input BTU
1
1. 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.
C3KX-PWR-440WDC: 1841 Btus per hour, 540 W
Total output BTU
1
C3KX-PWR-440WDC: 1502 Btus per hour, 440 W
Wire gauge for ground connection C3KX-PWR-440WDC: 12 AWG or 8 AWG
Branch circuit protection C3KX-PWR-440WDC: 20 A
Ta b l e A-5 Fan Module Environmental and Physical Specifications
Environmental Ranges
Operating temperature 23 to 113° F (–5 to 45° C)
Storage temperature –40 to 158° F (–40 to 70° C)
Relative humidity 10 to 95% (noncondensing)
Altitude Up to 10,000 ft (3049 m)
Physical Specification
Dimensions (H x D x W) 1.68 x 6.8 x 5.74 in. (4.27 x 17.27 x 14.58 cm)
Weight 0.24 lb. (0.1 kg)
Operating Specification
Airflow 60 cfm