kcmil or MCM are considered bigger wires (bigger than AWG wires). We generally use these thick wires when we need more than 200 amp service. Which kcmil wire exactly we need for carrying high currents is determined by the kcmil wire size chart (check the chart further on). Example: What is the ampacity of 400 kcmil copper wire?

Logical AWG numbers are based on continuing the series in a logarithmic relationship to the cross sectional area of the wire.

kcmil (or MCM; it’s the same) stands for thousands of circular mils. These are the big wires that carry more than 200 amps. You have 250 kcmil, 300 kcmil, 350 kcmil, 400 kcmil wires all the way to the biggest 2000 kcmil wire. AWG stands for American Wire Gauge. These are standard wires we use in everyday life for below 200 amp service.

1 kcmil is equal to 0.5067 mm2. When you know how many mm2 is kcmil, you can easily convert any kcmil to mm2. Example: 400 kcmil is equal to how many mm2? Simple calculation: 400 kcmil × 0.5067 mm2/kcmil = 202.68 mm2. This is the easiest way to convert kcmil to mm2. To help you out, we have also prepared these useful resources:

2015年8月4日 · Both MCM and kcmil mean 1,000 circular mils, which is a unit used to measure the area of the circular cross section of a wire. The terms MCM and kcmil are used interchangeably by the National Electric Code to describe wires that are larger than 0000 American wire gauge.

Abbreviated kcmil or MCM. 1 Thousand circular mils ≈ 5.067 074 790 97 x 10 -7 cubic meters (SI base unit). 1 kcmil ≈ 0.000 000 506 707 479 097 m 3. A square inch is an area with sides measuring one inch by one inch. One square inch (in 2) is 6.4516 square centimeters (cm 2).

2023年7月22日 · In these cases, wire sizes are expressed in thousands of circular mils (kcmil or MCM), which provide a direct measure of the cross-sectional area. This measurement is …

2020年12月7日 · To convert kcmil to mm² or vice versa, simply use our calculator below. Note: 1 kcmil = 1,000 mil. Worked Examples Using the Calculator: Using the calculator above: Table …

When a wire is larger than 0000, it has to be measured in MCM (thousands of circular mils), or kcmil. MCM and kcmil can be used interchangeably, but most people are familiar with MCM measurements. MCM sizing starts at 250 kcmil – slightly larger than a 4/0 wire.

To calculate the values, just select or enter the AWG/SWG size and hit the “Calculate” button to get the result of different properties of SWG/AWG cables and wires such as diameter in millimeter “mm” and inches “in”, cross-sectional area in square millimeter “mm2“, square inches “in2” and kilo Circular Mils “kcmil or MCM”. Related Calculators: