Appliance current·desktop PC
desktop PC · 350W
1.46A
North America 240 V · 30 A

desktop PC, 350 W — 1.46 A on a 240 V / 30 A circuit

350 W divided by 240 V is 1.46 A. This circuit allows 24 A continuously, so 16 of them can run together.

This circuit handles it

Fine on a power strip

Power draw
350 W
Voltage
240 V
Breaker
30 A
Current that flows
1.46 A
Limit for continuous use
24 A
How many fit at once
16
Wire it needs
AWG 24
Two hours a day, per month
21 kWh

Continuous loads get eight tenths

A breaker does not trip the instant you reach its rating — it holds for a long while first, and the wire warms up in the meantime. So a load running more than three hours is planned to eight tenths of the breaker. On a 16 A breaker that is 12.8 A.

Nearby cells

Same appliance, other circuits

Same circuit, other appliances

How to read this

  • Current is the power draw divided by the voltage — a different country gives a different answer.
  • The number that fits at once is eight tenths of the breaker divided by that current.
  • A power strip stops at 15 A. A bigger breaker does not help; the strip is the ceiling.
  • The wire gauge is taken straight from the wire pages.

Frequently asked questions

Q. How many amps does a desktop PC draw?

350 W over 240 V is 1.46 A.

Q. How many fit on this circuit?

16. Eight tenths of the 30 A breaker is 24 A, divided by 1.46 A.

Q. Is a power strip fine?

Yes — it stays within the 15 A a common strip holds.

Q. What wire does it need?

AWG 24 carries this current comfortably. Two hours a day comes to 21 kWh a month.