2-2 Sun Fire V120 and Netra 120 Server User’s Guide • December 2001
2.1 Operating Power Limits and Ranges
The table below gives operating and power information for the Sun Fire V120 and
Netra 120 servers.
*For both servers, the in-rush currentdecays to the normal operating current in less than
200 milliseconds. The in-rushdecaying peaks last for less than 3 milliseconds in each half
cycle.
Note – The figures for the maximum operating current areprovided to help you
specify the fusing and cabling you need to deliver power to your equipment.
However,these figures represent “worst-case” scenarios. Such occurrences are
unlikely in a real installation.
TABLE2-1 Operating Power Limits and Ranges for Sun Fire V120 and Netra 120 Servers
Description SunFire V120 Server (AC power) Netra120 Server (DC power)
Maximum operating
current 2A@ 90 VAC 4A @ –40 VDC
Maximum in-rush
current(cold start) 20A peak upon a restart
performed 60 seconds or more
after the removalof AC power
20A peak upon a restart
performed 60 seconds or more
after the removalof DC power
Maximum in-rush
current(warm start) 40A peak upon a restart
performed less than 60 seconds
but morethan 200 milliseconds
after the removalof AC power
40A peak upon a restart
performedless than 60 seconds
butmore than 200 milliseconds
after the removalof DC power
Maximum in-rush
current(hot start) 100A peak upon a restart
performed less than 200
milliseconds after the removal
of AC power
100A peak upon a restart
performed less than 200
milliseconds after the removal
of DC power
Operating input
voltage range 90-264 Vrms –40 to –75 VDC
Voltagefrequency
range 47-63 Hz DC
Power factor 0.8 to 1.0 Notapplicable
BTU rating 550 BTU 550 BTU