900W is how much my kettle is rated for, which means it actually draws 900W of power (which is about 9A at 100V).
For the microwave, 900W is the power transmitted to the food, not the power drawn from the outlet. All microwaves are rated this way. But microwaves are not particularly efficient; just guessing, I'd guess that a typical 1200W American microwave draws around 1500-1600W, and certainly no more than 1800W since that's the max the outlet can provide. So my microwave at the 900W setting probably draws a bare minimum of 1100W (11A at 100V).
And that's a fancy microwave; the typical microwaves here are all 500/600W. I think the most powerful one I've ever seen in a store was 1000W, so that's probably the highest power rating that can safely run on typical kitchen circuits here in reasonably modern buildings.
900W is how much my kettle is rated for, which means it actually draws 900W of power (which is about 9A at 100V).
For the microwave, 900W is the power transmitted to the food, not the power drawn from the outlet. All microwaves are rated this way. But microwaves are not particularly efficient; just guessing, I'd guess that a typical 1200W American microwave draws around 1500-1600W, and certainly no more than 1800W since that's the max the outlet can provide. So my microwave at the 900W setting probably draws a bare minimum of 1100W (11A at 100V).
And that's a fancy microwave; the typical microwaves here are all 500/600W. I think the most powerful one I've ever seen in a store was 1000W, so that's probably the highest power rating that can safely run on typical kitchen circuits here in reasonably modern buildings.