if the appliance is manufactured after 1920 it will have a nameplate somewhere near the power connection.
this nameplate SHALL have the amperage and voltage required.
the fuses in a house are sized so as to not set the house wiring on fire.
that being said
water heater nameplate 28A 240V can be on for periods longer than 20 minutes (continuous duty) so must derated 10% 31A .
minimum standard wire size #8 30A, 35A or 40A fuse no time delay needed.
air conditioner 25A 120A LRA 240V
minimum standard wire size #10 30A fuse time delay needed.
8.4
13
The rock
12a
You have to get high fives
64.1cc
13 and up.
The rating is (M)-ature (Violence and not apt for kids)
T or M depending on the platform for the USA
it hasn't come out yet
In the UK it is a 15 not sure if it varies between countries.
a f-250 has a 3/4 ton rateing and a f-350 has a 1 ton rateing unless they have changed it. in Chevrolet 1500 is 1/2 ton, 2500 is 3/4 ton and 3500 is a 1 ton.