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
Table 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 [email protected] 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
Table 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
