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To reduce the risk of overload:
◦
Do not exceed the rated load of any single power distribution unit (PDU).
◦
Do not load a single National Electrical Manufacturers Association (NEMA) 5-15 receptacle
with more than 15 amps.
◦
Do not load a single International Electrotechnical Commission (IEC) 320-1/C13 receptacle
with more than 10 amps.
◦
In general, verify that each power source circuit can safely provide the current required by
equipment drawing power from it.
Input current calculation
The 1110W power supply can provide 1110 watts in a 15A circuit by using this input current calculation:
Input Current = Output Power / (Voltage x Power Factor x Efficiency)
where:
Output Power = 1110 watts
Voltage = 90 volts
Power Factor = 0.998
Efficiency = 0.82
In this formula, the voltage (90 volts) includes all power line variations—line voltage sag, brownout
conditions, power grid characteristics, and so on.
CAUTION:
Check with your power provider to see if your facility is exposed to 90V power. If 90 volts
cannot be guaranteed to your workstation, the input voltage source might blow the fuse in the power
supply or trip the breaker.
For reliable workstation operation under heavy loading, use an uninterruptible power supply because it
provides reliable voltage levels.
ENWW
Input current calculation
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