Yes, It can be used on a two pole 15 or a two pole 20 amp breaker to give you the 240 volt supply that is needed depending on what the current load is. A #12 wire is rated at 20 amps and has to be derated to 80% if used on a contineous class load. 20 x .8 = 16 amps.
Yes, a 240V wire can be run from a junction box that is connected to the service box. The junction box serves as a point where circuits branch off, so the 240V wire can originate from there rather than directly from the service box. It is important to ensure that all electrical work is done following local electrical codes and regulations.
10 gauge will suffice.
A 240V cooktop does not have a neutral wire because it operates on a 240V split-phase system, where 240V is supplied by two hot wires, with no need for a neutral wire. The two hot wires provide the necessary power for the cooktop to operate efficiently.
the wires coming off double pole will give you 240 volts,110 each the black and white hook to these,doesn`t matter which way,ground to ground Ground is always ground, Black and white are your two "hots." You will need a dedicated circuit, you cannot run this off existing 120V wiring. A 15A 240V circuit should be more than sufficient. If this is a permanent instalation you can use 14/2 wire as you normally would, and wire it as you normally would with the exception of the 240V breaker. If you install switches, timers, etc. Make sure they are all rated for 240V. Remember, you can't just mix-and-match between 120 and 240V. 240 appliances will not run on 120 and 120 appliances will burn up on 240.
4 wire household wiring is black, red, (hot wires) white (neutral) and bare or green (ground wire). You say 3 wires. Is it 120v or 240v. If its 240v which is more common just use the two hots and the ground and cap off the neutral wire.
The recommended wire size for a 240V electrical circuit is typically 10-gauge wire.
Yes, a 240V wire can be run from a junction box that is connected to the service box. The junction box serves as a point where circuits branch off, so the 240V wire can originate from there rather than directly from the service box. It is important to ensure that all electrical work is done following local electrical codes and regulations.
The recommended wire size for a 240V 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 30 amp 240v circuit is typically 10 gauge wire.
The appropriate wire size for a 240V 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 240V 50 amp circuit is typically 6 AWG copper wire.
The appropriate wire size for a 240V 50 amp circuit is typically 6 AWG copper wire.
The appropriate wire size for a 50 amp 240v circuit is typically 6 AWG copper wire.
10 gauge will suffice.
In North America it takes two "hot" wires to obtain 240 volts.
Don't!
For a 240V 40 amp circuit, the appropriate wire size would be 8 AWG (American Wire Gauge) for copper conductors or 6 AWG for aluminum conductors.