If you never plug anything into them, there is no limit. If the total current drawn from all outlets exceeds 20 amps, the breaker will trip.
Yes the voltage rating of devices is the maximum amount of voltage that it can handle. You could not use a 480 volt breaker on a 600 volt service and like wise you could not use a 208 volt rated breaker on a 480 volt service.
It's the amps that are controlled by the breaker not the volts. You can have a 600 volt 15 amp breaker, you can have a 347 volt 15 amp breaker. The breaker will trip when you exceed 15 AMPS.
The outlet is connected to and protected by a breaker or fuse in a main electric panel. The outlet should be sized to the protection. Usually utility outlets in a residence are either 15 A or 20 A. If there are multiple outlets on a circuit then the total current cannot exceed the protection value of the breaker or fuse.
You will need a multimeter to check a 220 volt breaker. You should unplug appliances that go to that particular breaker. Use the multimeter at the breaker to check the voltage. If it shows 220, then the breaker is okay. If it doesn't, then the breaker is no good.
Yes. It is best to run a line from main breaker box to a separate 220V box with it's own breaker. You will need a licensed electrician to install if you are'NT comfortable doing this type of installation yourself.
16A
240 volts maximum.
You could but is it a total waste of money and is overkill. Use 12/2 with ground on all 120 volt outlets and light switches.
6000amps <<>> The above answer must have big lugs to accommodate 6000 amp capacity wire. In my breaker catalogue the largest 120 volt single pole breaker is 70 amps, 277 volt single pole is 150 amps and 347 volt single pole is 100 amps. The 120 volt single pole breaker occupies two opposed slots because of its length.
208 volts is not a common single phase voltage but you could just size your breaker to the capabilities of the conductor. 208 is normally a phase to phase voltage <<>> Many 230 volt motors can be connected to lower voltage supplies. These motors can be connected to supplies of 208 and 200 volts. The code requirement is that the 230 volt full load amperage of the motor be increased by 10% and 15% respectively for wire sizing and breaker selection. To answer the question you will need a two pole 15 amp breaker.
On most residential circuit breaker boxes in North America, each individual breaker represents one 120-volt circuit. Two breakers ganged together represent a 240-volt circuit.
If it is a 30 amp breaker then it is a 240 volt outlet.