regular US outlets are 120V. regular EU outlets are 240V. P=VI, so to produce the same amount of power as a 240V kettle, a 120V kettle needs to draw twice as much current.
the gauge of a wire determines how much current it can carry without setting insulation on fire. home outlets are typically wired for 15A, around the world. so in EU, 15A service can deliver twice as much power since that’s 15A of current at 240V = 3.6kW, while in the US at 120V = 1.8kW.
At least here in Australia, 15A circuits are not very common. Only one of the places I’ve ever lived had a 15A outlet in a shed, which was likely installed by the previous owner for running a welder or plasma cutter, or some other high peak power tool like that. 3.6kW is massive overkill for general household use.
The standard circuit here is 10A, which gives you 2.4kW to play with. It’s been a while, but if I recall correctly that was part of the point Technology Connections was making - that the difference isn’t actually that great between 120 and 240V countries in practice. The change to boiling time from an electric kettle was pretty inconsequential between the two.
I believe he postulated that the real reason Americans don’t have electric kettles was that they didn’t have much need for them. They mostly don’t drink tea, and their coffee is largely prepared using drip coffee makers that heat their own water.
I didn’t bring my 3Kw UK kettle over because I heard it would probably blow the circuit. But my Australian colleague who moved back over here brought his UK toaster and it actually did blow the circuit.
Hmm for some reason the numbers 1600 and 2000 W were rattling around my head for US and Europe respectively. I know most US appliances don’t like to pull the full 15 A because that’s when the breaker trips, but that would scale roughly the same for Europe so the power ratio should still be as you describe. I guess I either was misremembering or got the EU number from an abnormally low-current circuit.
I forgot TC did a video on this. I’ll have to watch when I have the time.
Technology Connections did a video on this rule.
regular US outlets are 120V. regular EU outlets are 240V. P=VI, so to produce the same amount of power as a 240V kettle, a 120V kettle needs to draw twice as much current.
the gauge of a wire determines how much current it can carry without setting insulation on fire. home outlets are typically wired for 15A, around the world. so in EU, 15A service can deliver twice as much power since that’s 15A of current at 240V = 3.6kW, while in the US at 120V = 1.8kW.
so EU kettles are twice as powerful, typically.
At least here in Australia, 15A circuits are not very common. Only one of the places I’ve ever lived had a 15A outlet in a shed, which was likely installed by the previous owner for running a welder or plasma cutter, or some other high peak power tool like that. 3.6kW is massive overkill for general household use.
The standard circuit here is 10A, which gives you 2.4kW to play with. It’s been a while, but if I recall correctly that was part of the point Technology Connections was making - that the difference isn’t actually that great between 120 and 240V countries in practice. The change to boiling time from an electric kettle was pretty inconsequential between the two.
I believe he postulated that the real reason Americans don’t have electric kettles was that they didn’t have much need for them. They mostly don’t drink tea, and their coffee is largely prepared using drip coffee makers that heat their own water.
I didn’t bring my 3Kw UK kettle over because I heard it would probably blow the circuit. But my Australian colleague who moved back over here brought his UK toaster and it actually did blow the circuit.
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Hmm for some reason the numbers 1600 and 2000 W were rattling around my head for US and Europe respectively. I know most US appliances don’t like to pull the full 15 A because that’s when the breaker trips, but that would scale roughly the same for Europe so the power ratio should still be as you describe. I guess I either was misremembering or got the EU number from an abnormally low-current circuit.
I forgot TC did a video on this. I’ll have to watch when I have the time.