2 Stranded Copper Wire Ampacity Chart

As you might guess the rated ampacities are just a rule of thumb.

2 stranded copper wire ampacity chart.

Formerly table 310 16 allowable ampacities of insulated copper conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient temperature of 30 c 86 f. 120 240 volt 3 wire single phase service entrance conductors service. Use the stayonline wire ampacity chart to look up the rated amperage of different sizes and types of cords. The number and type of electrical devices connected to a circuit determine the amperage requirement of the circuit.

Awg copper wire table size and data chart 100 degrees f. Usually a general purpose house circuit is designed for 20. This amp chart highlights the types of cords gauge size range number of cord coductors ampacity of current carrying conductors and much more. The following chart is a guideline of ampacity or copper wire current carrying capacity following the handbook of electronic tables and formulas for american wire gauge.

Must use the correct size wire for the amperage requirement of the circuit to prevent the wire from over heating. The allowable values in the ampacity table are based on temperature alone and. This is a handy rule to remember when making rough wire size estimations. Usually a general purpose house circuit is designed for 20 amps.

Lighting circuits may be designed for only 15. The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f. The american wire gauge awg measurement system was designed with a purpose. Current is measured in amperes or amps.

You must use the correct size wire for the current load requirement of the circuit to prevent the wire from overheating. Amp chart lead wire current carrying capacity ampacity awg size insulated conductor temperature rating awg size at 80 c at 90 c at 105 c at 125 c at 150 c at 200 c 40 0 33 0 49 0 55 0 60 0 71 0 78 40 38 0 47 0 68 0 77. Copper aluminum awg service or feeder or kcmil kcmil rating amperes 4 2 100.