AWG #3 copper.
To answer this question call a furnace person and ask him your question okay because nobody knows this. Stupid people! P.S. Why do you want to know this anyway?
noise filters are used in electronics and electric curcuts to reduce the the noise level which the electric switching generats sometimes the are single phase and there are three phase also the most used noise filters are ssr emc filters
Yes, there is a difference between single phase and three phase circuits.
working of single phase preventor
Single phase inherently requires less equipment (it's cheaper). Three phase motors are more efficient than single phase.
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.
The circuit breaker is sized to the full load amps of the motor times 250%.
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.
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.
The current is limited by the fuse or circuit breaker.
It is probably a three phase 50 Hz motor.
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.
The cheapest service to construct is a single phase service. A three phase service requires more equipment and materials to complete a service.
Very unlikely. Its 3 phase for a reason, it needs a large voltage/current to power it, single phase won't provide that.
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.
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.
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.