Most modern homes in the United States operate on 100 to 150 amp systems. Some larger homes have 200 amp or larger systems.
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The typical electrical service for a house in the US is 100 to 200 amps. This means the maximum current that can be safely drawn into the house at any given time is 100 to 200 amps. It's important not to overload the circuit as it can lead to electrical hazards.
Yes, you can have a 15 amp appliance connected to a 32 amp power supply. The appliance will only draw the current it needs, in this case 15 amps, so it will not overload the 32 amp supply.
A 100 amp service will supply your electrical current needs UP TO 100 amps.When doing load calculations on a 100 amp panel it can only be loaded up to 80 amps.
It depends on what kind of amp it is. Is it an audio amp or an rf amp . . A 3 kW audio amp would draw about 300 watts on average at most, so with a good reservoir capacitor the supply current would be 0.2 amps. A 3 kW rf amp for AM radio would draw about 4500 watts so the supply current would be 3 amps.
Answer for UK, Europe and countries running a 50 Hz supply service.It is acceptable to connect two 15-amp breakers to a 30-amp supply. It woud also be acceptable in some applications to connect three 15-amp breakers if it were known that the total current would not exceed 30 amps. For example in many UK properties there is a 60-amp supply, and connected to this there are two 30-amp supplies for the ring-circuit and the cooker, plus also a 10-amp lighting supply.
If the supply is a 20 amp supply it cannot supply a 40 amp stove, you need a bigger supply or a smaller stove.