A-29
Catalyst 4500 E-Series Switches Installation Guide
OL-13972-02
Appendix A Power Supply Specifications
4200 W AC-Input Power Supply
Table A-24
4200 W AC-Input Power Supply Specifications
Item
Specification
AC-input type
Autoranging input with power factor corrector
Note
Power factor correction is a standard feature on all Catalyst 4500
E-series AC-input power supplies. PFC reduces the reactive
component in the source AC current allowing higher power
factors (typically 99 percent or better) and lower harmonic
current components.
AC-input voltage
•
Low-line (120 VAC nominal)—85 VAC (min) to 132 VAC (max)
•
High-line (230 VAC nominal)—170 VAC (min) to 264 VAC (max)
AC-input current
12 A (maximum) @ 120 VAC or 230 VAC for each input
AC-input frequency
50/60 Hz (nominal) (±3% for full range)
Branch circuit requirement
Each chassis power supply should have its own dedicated, fused-branch
circuit:
•
For North America—15 A or 20 A
•
For International—Circuits sized to local and national codes
•
All Catalyst 4500 E-series AC-input power supplies require
single-phase source AC.
•
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.
–
For high-line operation, the power supply operates with the hot
conductor wired to a source AC phase and the neutral conductor
wired either to ground or to another source AC phase as long as
the net input voltage is in the range of 170 to 264 VAC.
–
Source AC can be out of phase between AC inputs on power
supplies that are equipped with multiple AC inputs, which
means that power cord 1 can be plugged into phase A and
power cord 2 can be plugged into phase B.
