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Catalyst 4500-X AC-Input Power Supply Installation Note
OL-26535-01
Power Supply Specifications
Power Supply Specifications
Tabl e 2 lists and describes the electrical specifications for the 750 W AC-input power supply.
Table2 Electrical Specifications, 750W 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)