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Q: What size wire and breaker for a 240 volt single phase 20 kw electric furnace rated at 83.3 amps?
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Related questions

What is the purpose of the 110 V single phase breaker?

The job of a breaker is to limit the amount of current that is applied to the size of wire that is connected to the breaker.


What circuit breaker rating do you need for a 3 phase electric motor?

The circuit breaker is sized to the full load amps of the motor times 250%.


What is a two phase furnace?

A two phase furnace includes 2 types of heat. Usually it is composed of an electric heat pump and also a nat. gas/ propane heat source when the temperature drops below a set range. The reason they use these is because heat pumps are very efficient when there's not a large temperature change required, but they're efficiency drops dramatically when the outside temperature (or ground temperature) drops below freezing. The only other two-phase furnace would be a two-phase electric (as opposed to a three-phase electrical furnace.) But I don't think you're asking about 2 vs 3 phase electrical furnace systems... Those are quite rare.


Can I run a 12 KW motor with a single phase?

To answer these types of questions, a voltage of the single phase motor should be stated. It has to do with the breaker sizing and wire sizing and current load.


How much current will pass through single phase?

The current is limited by the fuse or circuit breaker.


Is 380 volts electric motor a single phase or 3 Phase?

It is probably a three phase 50 Hz motor.


Can you use a 2 pole breaker for a 120 volt single phase circuit?

A single phase circuit uses a 2 pole breaker if the circuit is 120/240 split phase and the load is connected 240. Both legs are hot, so both need to be protected. This is the normal US/Canada configuration.


what is the cheapest electric supply cost single phase or 3 phase?

The cheapest service to construct is a single phase service. A three phase service requires more equipment and materials to complete a service.


Can a 3 phase commercial electric grill be used on single phase 120 with a converter?

Very unlikely. Its 3 phase for a reason, it needs a large voltage/current to power it, single phase won't provide that.


How you convert the value of single phase power to value of 3 phase power?

Electric power is measured in watts. It does not matter if it is single phase or three phase. All things being equal, for the same load, the power measured in a single phase circuit or a three phase circuit, will be the same.


What is a two phase?

A two phase furnace includes 2 types of heat. Usually it is composed of an electric heat pump and also a nat. gas/ propane heat source when the temperature drops below a set range. The reason they use these is because heat pumps are very efficient when there's not a large temperature change required, but they're efficiency drops dramatically when the outside temperature (or ground temperature) drops below freezing. The only other two-phase furnace would be a two-phase electric (as opposed to a three-phase electrical furnace.) But I don't think you're asking about 2 vs 3 phase electrical furnace systems... Those are quite rare.


Why you use only single phase induction motor not other?

You would use a single-phase induction motor if the available electric power supply is a single-phase one. That applies to the average house or small business.