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For a 7000watts or 7kw a 240V then it is 30 Amp

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Q: What size amp circuit breaker should be used for 240V 7000KW?
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How many amps are on a double pole 30 amp circuit breaker?

The 30 A breaker you seem to be describing is a 240V breaker. There should be two black wires or perhaps a black and red wire connected to the two screws on the breaker. So the breaker would trip if more than 30A was demanded by the load with 240V across the load. What you have connected to the breaker should be sized such that the total current is no more than 80% of the 30 A.


If your air conditioner is 120V but the outlet is 240V can you convert from 240V to 120V and how?

If the 220V circuit is dedicated, is to derate the circuit to a dedicated 110V outlet. Replace the 220V breaker with a 110V breaker and install a 110V outlet in place of the 220V outlet. If the original circuit was 20A or greater go with a 20A breaker and a 20A outlet as Airconditioners are fairly large loads. Do not exceed the current rating of the old circuit as that is all the current the existing wiring can handle.


What gauge wire is needed for 240v?

The voltage has nothing to do with the gauge of wire needed to supply a given circuit. The size wire is determined by the amperage of the overcurrent protection device (circuit breaker, etc.) being used to supply power to the circuit.


What breaker do you use for 10-2 wire?

Assuming a 120V circuit then a 30A Single Pole. For a 240V circuit an 30A two pole. Of course anything smaller that a 30A is acceptable. 30A is the maximum allowed.


4800 watt heater that's 240 volts What size breaker is needed?

Technically it's a 20 amp load (20A x 240V = 4800W). However, you should not run a breaker at full load. The breaker is to protect the wiring from overheating and from short circuits. You should use 10 gauge wire and a 30 amp double pole breaker.

Related questions

How much voltage should be in 2pole circuit breaker?

In America, a 2-pole breaker is controlling 240V. 120V per leg.


Can you wire a 12 2 wire to a 20A 240V circuit breaker to get a 240V for an electric heater?

Yes


If you have a breaker that has a 120240v and your dryer has a 240v plug can you change the receptacle to a 240v?

if i have a breaker that has a 120/240v and my dryer has a 240v plug can i change the receptacle to a 240v


Would a 30A 240V circuit breaker be too large to safely support a either a 20A or 23A 240V bandsaw?

Yes it will operate it fine.


Will a 20A 240V breaker be sufficient for a 240V 22A input welder or do you need to go to a 30A?

It would have to be a 30 amp breaker to use the full power of the welder. I'd say go with the 30A. The general rule is that your planned load should only be 80% of the circuit capacity. That means a 30A circuit should have a maximum load of of (30*0.8) = 24A. With the 30 amp breaker you must have at least #10 wires feeding the circuit.


How many amps are on a double pole 30 amp circuit breaker?

The 30 A breaker you seem to be describing is a 240V breaker. There should be two black wires or perhaps a black and red wire connected to the two screws on the breaker. So the breaker would trip if more than 30A was demanded by the load with 240V across the load. What you have connected to the breaker should be sized such that the total current is no more than 80% of the 30 A.


What is 2 pole 20 a circuit breaker used for?

A two pole 20A circuit breaker can be used for any 240V load that requires 20A, with supply conductors no smaller than 12AWG. Since a clothes dryer typically requires 30A, and a range 40A to 50A, a 20A 240V circuit could probably be a window air conditioner, pool pump, or some other 20A 240V load.


Can GFCI circuit breaker handle a 240V circuit with a 120V circuit sub-paneled off if it?

I don't know if you are trying to ask if you can run a 240V panel off a GFCI or run a 120 V sub panel off of a GFCI. Can you clarify please,,,Thanks


If your air conditioner is 120V but the outlet is 240V can you convert from 240V to 120V and how?

If the 220V circuit is dedicated, is to derate the circuit to a dedicated 110V outlet. Replace the 220V breaker with a 110V breaker and install a 110V outlet in place of the 220V outlet. If the original circuit was 20A or greater go with a 20A breaker and a 20A outlet as Airconditioners are fairly large loads. Do not exceed the current rating of the old circuit as that is all the current the existing wiring can handle.


Can you run a 120V heater with a 240V supply?

Definitely not - it would burn out quickly and probably cause the circuit breaker to trip as well.


Can you convert a 240V circuit on your service panel to two 120V circuits?

A 240 volt breaker can be removed and replaced with 2 - 120 volt breakers. The existing 240 volt breaker should not be used to supply 2 separate circuits.


What size breaker should be used for a dryer in Canada?

Two pole (for 240V), 30A typical.

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