A #6 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 65 amps.
A #8 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 45 amp which is too small for a 45.5 amp load.
10 mm2 cross section should be sufficient (#6 wire?)
At the service entrance you will need AWG 1/0 gauge.
4800
AWG # 10.
Depends on the amperage of the Jacuzzi and if it is 120 or 240 volts.
10 gauge will work fine.
A #14 wire will do the job.
10 mm2 cross section should be sufficient (#6 wire?)
For a 240 volt 40 amp circuit, the appropriate wire size is typically 8 AWG (American Wire Gauge) for copper conductors.
The ampacity of an 8 gauge wire at 240 volts would depend on the specific type of wire and the installation conditions. Generally, an 8 gauge wire can safely carry around 40-50 amps of current. It is important to consult the National Electrical Code (NEC) and local regulations for precise guidance.
At the service entrance you will need AWG 1/0 gauge.
30 amps.
10 gauge
Wire sizes are governed by the amperage the wire is to carry. To answer this question the load current is required.
4800
AWG # 10.
Depends on the amperage of the Jacuzzi and if it is 120 or 240 volts.