Electrical Site Requirements; Ac Power Requirements; Overcurrent Protection Requirements; Disconnecting The Power For Servicing - Sun Microsystems StorEdge S1 Array Installation And Maintenance Manual

Electrical Site Requirements

AC Power Requirements

AC Power Requirements
TABLE A-2
Electrical Element
Voltage
Frequency
Input current
Max. input surge current

Overcurrent Protection Requirements

Note – Overcurrent protection devices must meet applicable national and local
electrical safety codes and be approved for the intended application.
Overcurrent protection devices must be provided as part of each host equipment
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rack.
Circuit breakers are located between the AC source and the array.
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Circuit breakers must not trip when presented with inrush current of 100 amps
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lasting 5 ms.

Disconnecting the Power for Servicing

You can disconnect the power for servicing in any of the following ways:
Requirement
100 VAC to 240 VAC (nominal)
47–63 Hz
< 2.0 amps @ 100 VAC (150 Watts)
• 20 amps peak on a cold start (after the AC power has
dropped off for >60 seconds) or on a restart (after the AC
power has been removed for 200 milliseconds or longer)
• 100 amps peak on a warm start or a restart (after the AC
power has been removed for <200 milliseconds but >20
milliseconds)
The surge current decays to normal operating current in less
than 200 milliseconds. The surge current's decaying peaks are
for less than 3 milliseconds duration in each half cycle.
Appendix A System Specifications and Site Requirements 97