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MCM is another measure of wire gauge. It is somewhat confusing but it starts at around 40 gauge being the smallest wire up to the largest gauge of 1. from there you have oughts which is from 1 to 4 (1 ought, 2 ought etc) and then you have MCM which is circular mils. MCM can range from something as small as 250 mcm up to 2000 mcm.
Another Answer
The abbreviation, 'MCM', stands for 'thousand circular mils'. A 'circular mil' is a North-American method of measuring the cross-sectional area of a circular-section conductor (Europeans use square millimetres for conductors of anyshape).
A 'circular mil' is obtained by squaring the diameter of a circular-section conductor, expressed in mils. A 'mil' is one-thousandth of an inch. As the constant, 'pi', isn't taken into account, it should be obvious that a circular mil is, therefore, a figure representing a cross-sectional area, rather than a true measure of that area.
If necessary, in order to obtain a true cross-sectional area, circular mils can be converted into square mils.
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Convert 350 mcm to AWG?
There is no defined AWG for 350 MCM. The American Wire Gauge stops at 0000 (4/0), and 350 MCM is bigger than this. An approximate conversion would be 6/0, if there were such a thing. Extrapolating out from 4/0, 6/0 is 334.8 MCM, and 7/0 is 422.2 MCM. These wire sizes don't exist of course, and don't exactly match 350 MCM anyway.
What is the amperage rating of 500 MCM copper conductor?
It depends on a lot of factors. Generally speaking, if the insulation is THHN then the rating is 350 amps. If the insulation is THWN then the rating is 310 amps. The ampere rating for wire depends on the temperature of the environment it will be used in, the insulation rating and the number of circuits installed in a conduit. There are also other factors to consider... like voltage drop in long runs.
How much current does 300 sq mm cable carry?
A 228 sq mm conductor equates to 450 MCM. A conductor of 450 MCM is not a standard AWG wire size. A standard 400 MCM will carry 380 amps. A standard 500 MCM will carry 430 amps. Difference between 400 and 500 MCM amperage's is 50 amps. Transposing between the two amperage's of 50 amps will be 380 + 25 = 405 or 430 - 25 = 405 amps. This is a very rough calculated answer for the question.
Current-carrying capacity of 1000 mcm 5kv rated wire?
The UK wire tables for 1.0 mm2 three-core domestic cable (live/neutral/earth) specify a limit of 10 amps.
Amps on a 600 mcm copper?
475 amps, per NEC 310-16. Note that this is a maximum; there are many reasons to derate the current carrying capacity of the wire.
Convert 262 mcm to AWG?
Using the AWG for wire sizes only goes up to 4/0. After that the increases use MCM to size the wire. So your 262 MCM wire size will be same in AWG. There is no 262 MCM in the North American market place. It goes in 50 MCM increments starting at 250 MCM , 300 MCM, 350 MCM, 400 MCM right up to 2000 MCM cable.
What does 750 mcm wire weight?
The weight of 750 MCM (thousand circular mils) wire will depend on the material it is made of, such as copper or aluminum. Copper 750 MCM wire weighs approximately 1.74 pounds per foot, while aluminum 750 MCM wire weighs around 1.09 pounds per foot.
A conductor that is described as a 750 MCM wire has an area of what?
A 750 MCM wire has a cross-sectional area of approximately 500,000 circular mils.
How much does 250 mcm copper wire weigh per foot?
250 MCM copper wire weighs approximately 0.311 pounds per foot.
How big around is copper wire mcm 750?
The diameter of an insulated 750 MCM copper wire is 1.25 inches. The insulated 750 MCM copper wiring has 61 strands and has a weight of 2.7 pounds per foot.
What is the weight of 400 mcm copper wire per foot?
500mcm 37 strand copper wire = 1.544lbs/ft.
Convert 350 mcm to AWG?
There is no defined AWG for 350 MCM. The American Wire Gauge stops at 0000 (4/0), and 350 MCM is bigger than this. An approximate conversion would be 6/0, if there were such a thing. Extrapolating out from 4/0, 6/0 is 334.8 MCM, and 7/0 is 422.2 MCM. These wire sizes don't exist of course, and don't exactly match 350 MCM anyway.
What is the amperage rating of 800 MCM Copper wire?
600amps
How much does 140 foot of 300 mcm weigh?
A 1000 feet of 300 MCM wire weighs 1021 pounds. It is easy to calculate from there.
What size of copper do you need for a 1250 amps rating?
There are different combination to obtain a current capacity of 1250 amps. A parallel run of #1250 MCM wires. A triple run of #600 MCM wire. The most flexible run would be with a quad run of #350 MCM wire.
What does 400 mcm copper wire way per foot?
400 MCM (thousand circular mils) copper wire weighs approximately 1.51 pounds per foot.
How much does 350 mcm weight per foot?
The weight of 350 MCM (thousand circular mils) per foot depends on the material it is made of. For example, copper 350 MCM wire weighs approximately 2.6 pounds per foot, while aluminum 350 MCM wire weighs around 1.6 pounds per foot.
