[gus_massa]

The 200A are at the fuse box (in new houses, old houses may have less).

The wall sockets usually have 110V-15/20A connections. But there are some especial sockets with 240V-30/50A for special applications, like clothes dryers and electric ovens.

[lostlogin]

In our old house some genius used paper clips instead of fused wire in the (very old) fuse box. Not sure how I didn't die when I draped and extension lead in a puddle and got a shock. After I recovered I looked in the fuse box to see why the fuse didn't blow and found one fat paper clip over the gap. I'm not sure what current the box took, but I'm sure glad it wasn't 200Amps.