0
resistance[6]NEC copper wire
ampacitywith
60/75/90 °C
insulation (A)[7]Approximate
standard metric
equivalentsFusing Current
(copper)[8][9](inch)(mm)(per in)(per cm)(kcmil)(mm2)(Ω/km)
(mΩ/m)(Ω/kFT)
(mΩ/ft)Preece
(~10s)Onderdonk
(1s)Onderdonk
(32ms)0000 (4/0)0.460011.6842.170.8562121070.16080.04901195 / 230 / 26031 kA173 kA000 (3/0)0.409610.4042.440.96116885.00.20280.06180165 / 200 / 22524.5 kA137 kA00 (2/0)0.36489.2662.741.0813367.40.25570.07793145 / 175 / 19519.5 kA109 kA0 (1/0)0.32498.2523.081.2110653.50.32240.09827125 / 150 / 1701.9 kA15.5 kA87 kA10.28937.3483.461.3683.742.40.40660.1239110 / 130 / 1501.6 kA12 kA68 kA20.25766.5443.881.5366.433.60.51270.156395 / 115 / 1301.3 kA9.7 kA54 kA30.22945.8274.361.7252.626.70.64650.197085 / 100 / 110196/0.41.1 kA7.7 kA43 kA40.20435.1894.891.9341.721.20.81520.248570 / 85 / 95946 A6.1 kA34 kA50.18194.6215.502.1633.116.81.0280.3133126/0.4795 A4.8 kA27 kA60.16204.1156.172.4326.313.31.2960.395155 / 65 / 75668 A3.8 kA21 kA70.14433.6656.932.7320.810.51.6340.498280/0.4561 A3 kA17 kA80.12853.2647.783.0616.58.372.0610.628240 / 50 / 55472 A2.4 kA13.5 kA90.11442.9068.743.4413.16.632.5990.792184/0.3396 A1.9 kA10.7 kA100.10192.5889.813.8610.45.263.2770.998930 / 35 / 40333 A1.5 kA8.5 kA110.09072.30511.04.348.234.174.1321.26056/0.3280 A1.2 kA6.7 kA120.08082.05312.44.876.533.315.2111.58825 / 25 / 30235 A955 A5.3 kA130.07201.82813.95.475.182.626.5712.00350/0.25198 A758 A4.2 kA140.06411.62815.66.144.112.088.2862.52520 / 20 / 25166 A601 A3.3 kA150.05711.45017.56.903.261.6510.453.18430/0.25140 A477 A2.7 kA160.05081.29119.77.752.581.3113.174.016- / - / 18117 A377 A2.1 kA170.04531.15022.18.702.051.0416.615.06432/0.299 A300 A1.7 kA180.04031.02424.89.771.620.82320.956.385- / - / 1424/0.283 A237 A1.3 kA190.03590.91227.911.01.290.65326.428.05170 A189 A1 kA200.03200.81231.312.31.020.51833.3110.1516/0.258.5 A149 A834 A210.02850.72335.113.80.8100.41042.0012.8013/0.249 A119 A662 A220.02530.64439.515.50.6420.32652.9616.147/0.2541 A94 A525 A230.02260.57344.317.40.5090.25866.7920.3635 A74 A416 A240.02010.51149.719.60.4040.20584.2225.671/0.5, 7/0.2, 30/0.129 A59 A330 A250.01790.45555.922.00.3200.162106.232.3724 A47 A262 A260.01590.40562.724.70.2540.129133.940.811/0.4, 7/0.1520 A37 A208 A270.01420.36170.427.70.2020.102168.951.47280.01260.32179.131.10.1600.0810212.964.907/0.12290.01130.28688.835.00.1270.0642268.581.84300.01000.25599.739.30.1010.0509338.6103.21/0.25, 7/0.1310.008930.22711244.10.07970.0404426.9130.1320.007950.20212649.50.06320.0320538.3164.11/0.2, 7/0.08330.007080.18014155.60.05010.0254678.8206.9340.006300.16015962.40.03980.0201856.0260.9350.005610.14317870.10.03150.01601079329.0360.005000.12720078.70.02500.01271361414.8370.004450.11322588.40.01980.01001716523.1380.003970.10125299.30.01570.007972164659.6390.003530.08972831110.01250.006322729831.8400.003140.07993181250.009890.0050134411049
In the North American electrical industry, conductors larger than 4/0 AWG are generally identified by the area in thousands of circular mils (kcmil), where 1 kcmil = 0.5067 mm². The next wire size larger than 4/0 has a cross section of 250 kcmil. A circular mil is the area of a wire one mil in diameter. One million circular mils is the area of a circle with 1000 mil = 1 inch diameter. An older abbreviation for one thousand circular mils is MCM.
What else can I help you with?
What is difference between cable tray and cable trunks?
Cable tray is a system of wiring in a building in which insulated electrical wires are used to distribute power and communication to various access points. Cable trunks are power supply lines that are used to distribute power and communication services to large areas such as industrialized cities.
Can I use a power cord with same voltage output but different Amperage?
As long as you don't exceed the current rating of the cable.
If voltage and current are proportional why do they increase voltage in powerlines in order to decrease current?
Low current will equal low power losses due to the resistance of the cable. I squared R. (I is transmission current and R is resistance/Metre of cable) by increasing the voltage for the same amount of power the current decreases. Power transmission will take that advantage to transfer less current for the same amount of power.
What are some different properties of cable insulation?
Is because of the power rang. The power passing through 6mm2 cable cannot pass through 2.5mm2 cable.
Will a 5 amp device work with a .5 amp power cable?
Yes, the larger cable can carry more load (current) than the other cable.
Why armour HT XLPE power cable required to Earth?
because when ever fault current occurs then the cable wont get damaged due to cable armored earthing to the gland for fault current to pass through groung
Will a 12v 2 amp device work with 12v 5 amp power cable?
Yes, the larger cable can carry more load (current) than the other cable.
Why we go for bus bar riser system instead of cables?
It is done to carry more current at rated power & to reduce the power loss as compared to cable since a bus-bar has more area compared to cable so resistance is less & hence losses are reduced. It is done to carry more current at rated power & to reduce the power loss as compared to cable since a bus-bar has more area compared to cable so resistance is less & hence losses are reduced.
Why does the cable from the power supply to the motherboard have different colored wires?
Each wire carries a different voltage.
How much power can you run on 2.5mm cable?
When you say "Power" you're talking overall wattage. But, what you need to find is the current limit for that gauge cable, which is everywhere on the internet. Try the NEC Section 300
What is the difference between an electric cooker cable and a bulb cable?
An electric cooker cable is designed to handle higher power loads and is typically thicker and more robust compared to a bulb cable which is thinner and designed for lower power applications like lighting. Additionally, an electric cooker cable may have different connectors and insulation ratings as it is meant for higher temperature environments.
Where core cable and pair cable is used?
Assuming you're taking about 'twin core and earth' cable - it's commonly used to supply power to high-current devices such as cookers and immersion heaters.
