Datasheet

A-25
Catalyst 6500 Series Switches Installation Guide
OL-5781-07
Appendix A Power Supply Specifications
2500 W AC-Input and DC-Input Power Supplies
Table A-18 lists the specifications for the 2500 W DC-input power supply.
Branch circuit requirement Each chassis power supply should have its own dedicated, fused-branch
circuit:
• For North America—20 A
• For International—Circuits 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.
– 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.
Power supply output
capacity
• 1300 W maximum (100–120 VAC)
• 2500 W maximum (200–240 VAC)
Power supply output
• 100/120 VAC operation
– 15.5 A @ +3.3 VDC
– 5A @ +5VDC
– 10 A @ +12 VDC
– 27.5 A @ +42 VDC
• 200/240 VAC operation
– 15 A @ +3.3 VDC
– 5A @ +5VDC
– 10 A @ +12 VDC
– 55.5 A @ +42 VDC
Output holdup time 20 ms minimum
kVA rating
1
3520 W (total input power) or 3.6 KVA (high-line operation)
Heat dissipation 10,939 BTU/hour (approx.)
Weight 17.0 lb (7.7 kg)
1. The kVA rating listed for the power supply should be used as the sizing criteria for both UPS outputs as well as standard
circuits and transformers to power a switch.
Table A-17 2500 W AC-Input Power Supply Specifications (continued)
Specification Description