AWG # 10 wire.
The minimum wire size for a 30Amp breaker is typically 10 AWG for copper wire and 8 AWG for aluminum wire, according to the National Electrical Code (NEC). This wire size is necessary to safely carry the amount of current without overheating.
No, you cannot use an existing 8 3 wire hooked to a 30amp breaker for a heater that requires 10 2 wire. The wire gauge and breaker size need to match the specific requirements of the new heater to ensure safety and proper function. You will need to upgrade the wiring to accommodate the 10 2 wire needed for the 5000-watt 240-volt heater.
For a 100' run from the panel to the RV using a 30amp breaker, you should use 10 gauge wire to ensure safe and efficient power delivery. This wire gauge is appropriate for the distance and the current capacity of the breaker.
For a 50 amp breaker, you would typically need a 6-gauge wire.
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.
The recommended wire size for a 20 amp breaker is typically 12-gauge wire.
The appropriate wire size for a 25 amp breaker is typically 10 gauge wire.
The appropriate wire size for a 30 amp breaker is typically 10 gauge wire.
The recommended wire size for a 25 amp breaker is typically 10 gauge wire.
The recommended wire size for a 30 amp breaker is typically 10 gauge wire.
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.