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Catalyst 4500-X AC-Input Power Supply Installation Note
OL-26535-01
Power Supply Specifications
Power Supply Specifications
Table 2 lists and describes the electrical specifications for the 750 W AC-input power supply.
Table 2 Electrical Specifications, 750 W AC-Input Power Supply
Specification Description
AC-input type Autoranging input with power factor correction
(PFC)
AC-input voltage 100 to 240 VAC (115/230 VAC nominal)
single-phase
AC-input current
• 11 A @ 100 VAC (max)
• 6A @ 200VAC (max)
AC-input frequency 47 to 63 Hz (50/60 Hz nominal)
Branch circuit requirement Each chassis power supply should have its own
dedicated, fused-branch circuit:
• For North America—15 A
• For International—Circuits should be sized to
local and national codes
• All AC power supply inputs are fully isolated.
• Source AC can be out of phase between
multiple power supplies in the same chassis,
which means that PS1 can be operating from
phase A and PS2 can be operating from
phase B.
Power supply output capacity 750 W
Power supply output
• 12 VDC @ 62 A
• 3.3 VDC @ 3 A
Output holdup time 16 ms minimum (20 ms @ 60% load)
BTU (total output)
1
1. 1000 BTU/hour = 293 W
1122 BTU/hour (nominal)
1365 BTU/hour (max)