Best kept secret in AC line filtering conditioning

lemonhaze

@cleeds ... You also state: " And of course the power cord will need to be changed to have the proper connector for the 240VAC service."
The IEC receptacle is an industry standard that is used for connection to the mains regardless of countries’ voltage. Think about a device that has the ability to be used on either 110V or 230V by internally connecting the transformer primaries in series (230V) or parallel (110V) do you find two different IEC connectors on the back panel???

Hey @lemonhaze: Think about your typical power cord. You’ll note it has a connector at each end of the cord. One end goes into the wall for AC power. Connectors for 240VAC supply are different than connectors for 120VAC supply. That is why I stated that the cord will need to be changed to have the proper connector.

ditusa

Will a 240 volt 1500 watt space heater connected to a 240 volt source produce more heat than a 120 volt 1500 watt space heater connected to a 120 volt source? No.....
Current, amps?
P / E = ?
1500W / 120V = 12.5 amps.
1500W / 240V = 6.25 amps.

Correct!

chris_w_uk

That would be assuming the identical piece of equipment being used at 110V and 240V, whereas the equipment would be built for the particular voltage being used, so both pieces of equipment would be different so they produce the same Wattage output.

You’re incredibly confused, and now you seem to be confusing line voltage with rated power output.

Here’s the simple truth, all other things being equal: Any appliance, given a specified current draw, will draw half the wattage at twice the voltage. (It goes without saying that its power supply would be correct for the voltage it’s supplied.) It doesn’t matter if you’re talking about an amplifier or a refrigerator.

Example: If we have an amplifier rated for 100 watt output and it draws 1,000 watts at 120VAC, then it will draw 500 watts at 240VAC. Of course, it's power transformer will need replacement or rewiring to accommodate the change in voltage. And of course the power cord will need to be changed to have the proper connector for the 240VAC service. But none of that changes the simple fact that changing the service voltage has no affect on current draw, which is watts x volts. And it will produce its rated output either way.

chris_w_uk

You’re confused, and now you’re comparing apples with oranges.
1000Watts @ 240V - 1000/240 = 4.16 Amps
1000Watts @ 110V - 1000/110 = 9.09 AmpsMy point being if connections are not perfect trying to pass 9.09 Amps through them will cause more problems than passing 4.16 Amps.

@chris_w_uk. Sorry, but you just don’t know what you’re talking about. The component will draw the same current at 120VAC as it does at 240VAC. If the component draws 1,000 watts at 120VAC, it will draw half that wattage at 240VAC. You’re confusing voltage with current.

chris_w_uk

... maybe 230V as opposed to 110V has something to do with it? I don’t know, apart from 230V equipment drawing roughly 50% the current of 110V.

You're confused. For any given load, the current will be the same as 120VAC as it is at 240VAC. See Laws of Thermodynamics, conservation of energy.