Is 47000 SEK monthly before tax a good Salary?

Your post is quite old, hence I don´t know if it´s still relevant.
But - I would say it depends on many things. What will you pay for renting a house / flat? Would you have to pay for the school / Kindergarden for your kids yourselves? Who pays for your health insurance? Do you need to purchase a car there "to get around"? It depends on many things. I don´t live in Sweden, but in Denmark, but I think there are big similarities between the 2 countries, not the least in terms of taxes and cost of living.

You also have to consider that - just like in Denmark - taxes in Sweden are quite high. Cost of living in terms of food, clothing etc. is probably higher than in many other European countries too.

47.000 SEK with todays exchange rate is about USD 5.200,-
That is not a lot, but I would say it´s possible to have a good life and to even save a bit with that salary. Unless of course you have many "side costs" - which could be the mentioned things: Buying a car, paying for your kids to go to school, paying for social security / health insurance etc.