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NEC 310.16 conductor ampacities

NEC 240.4(D)

For residential installations the smallest wire to be used is 14 AWG (15 amps rating)

and for commercial installations the smallest wire to be used is 12 AWG (20 amp rating)

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Related Questions

What size wire will carry 55 amps 75 feet?

AWG # 6 copper


Will awg 10 wire carry 30 amps for 30feet?

Yes, a #10 wire will carry 30 amps for 30 feet. If the load is rated as continuous then the wire will have to be derated to 80% capacity which will leave you with 24 workable amps. If the load demands currents higher that 24 amps then you will have to go to the next wire size up which is a #8 which is rated at 45 amps.


What is the appropriate wire size for a circuit requiring 60 amps?

The appropriate wire size for a circuit requiring 60 amps is typically 6-gauge wire.


What size wire do you need to run to an air conditioner that has a maximum breaker size of 40 amps and a minimum circuit size of 25.3 amps?

You would need to use a wire size that is rated for at least 40 amps to be safe and to meet the requirements of the air conditioner. A common wire size for this application would be 8 AWG copper wire, which is rated for 40 amps.


What is the appropriate wire size for a circuit that requires 30 amps of current?

The appropriate wire size for a circuit that requires 30 amps of current is typically 10-gauge wire.


What size wire do you need for 15 amps?

AWG 10.


What is the recommended wire size for a circuit carrying 35 amps of current?

The recommended wire size for a circuit carrying 35 amps of current is typically 8 AWG (American Wire Gauge).


What is the recommended wire size for a circuit carrying 80 amps of current?

The recommended wire size for a circuit carrying 80 amps of current is typically 4 AWG (American Wire Gauge).


What is amp size for 14 wire?

15 amps.


What size wire for 250 amps?

15mm approx.


What size wire do you need to carry nineteen amps for two hundred feet at two hundred forty volts ac?

10 guage


What wire size is good for 100 amps?

# 4 copper wire short distance.

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