A-6
Catalyst 6500 Series Switches Installation Guide
OL-5781-04
Appendix A Power Supply Specifications
950 W AC-Input and DC-Input Power Supplies
Branch circuit requirement (AC-input) Each chassis power supply should have its own
dedicated, fused-branch circuit:
• For North America—15 A
• For International—Circuits sized to local and
national codes
• All Catalyst 6500 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.
–
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 950 W maximum (100–240 VAC)
DC-input voltage –48 VDC to –60 VDC continuous
DC-input current
• 38 A @ –48 VDC
• 30 A @ –60 VDC
Power supply output (AC supply)
• 15 A @ +1.5 V
• 2.5 A @ +3.3 V
• 19.15 A @ +50 V
Power supply output (DC supply)
• 15 A @ +1.5 V
• 2.5 A @ +3.3 V
• 19.15 A @ +50 V
Output holdup time
• 20 ms minimum (AC-input power supply)
• 4 ms (DC-input power supply)
Heat Dissipation
• 4441 BTU/hour (approx.) AC-input power supply
• 4632 BTU/hour (approx.) DC-input power supply
Table A-3 950 W AC-Input and DC-Input Power Supplies Specifications (continued)
Item Specification
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