Yes <<>> In North America, a three wire 120/240 volt system uses a neutral wire. For 240 volts two "hot" wires are used with no neutral.
Depends on the amperage of the Jacuzzi and if it is 120 or 240 volts.
AWG # 10.
At the service entrance you will need AWG 1/0 gauge.
10 mm2 cross section should be sufficient (#6 wire?)
12-2 wire typically carries 120 volts in residential settings and 240 volts in certain appliances or systems that require higher voltage.
30 amps.
Yes <<>> In North America, a three wire 120/240 volt system uses a neutral wire. For 240 volts two "hot" wires are used with no neutral.
current = voltage/resistanceAssuming the 240 volts is across the 100 ohm wire, 2.4 amperespower = current * voltageResulting in the wire dissipating 576 watts... One hot wire!
3/0 wire 3/0 wire
A #14 wire will do the job.
No, it is not possible to use 240 volts with a 120 volt supply directly. You would need a transformer to step up the voltage from 120 volts to 240 volts. Attempting to use 240 volts with a 120 volt supply without a transformer can damage equipment and pose a safety hazard.
A label.
If you are connecting 120 volts, you connect the black wire to the breaker, white wire to the neutral bar, and ground wire to the ground bar. If you are connecting 240 volts connect the black & white wires to the breaker, & ground wire to the ground bar.
No, the dryer needs 120 volts supplied by the neutral third wire, along with the 240 volts for the dryer element. One of the two 240 volt supply conductors is used with the neutral to supply 120 volts to the controls and the drum motor. That is why a three wire cable is needed.
10 gauge
you can use two hot wire different phases with a double pole braker .