2 gang
You don't, at least, not legally.
No
No.
Round 2-pin; 220V AC
The recommended wire size for a 220v electrical circuit is typically 10-gauge wire.
Wire sizing is based on the amperage of the connected load. The wire size number 12 is rated at 20 amps.
The recommended wire size for a 220v 20 amp circuit is typically 12-gauge wire.
The recommended wire size for a 220v 30 amp circuit is typically 10 gauge wire.
The appropriate wire size for a 20 amp 220v circuit is typically 12-gauge wire.
The appropriate wire size for a 220v 30 amp circuit is typically 10 gauge wire.
The recommended wire size for a 60 amp 220v circuit is typically 6-gauge wire.
compressor 220v refigiretor 90watts