What is 250MCM?

When wires get very large their sizes are sometimes shown as “MCM”, such as 250MCM. MCM means Thousand (M) Circular (C) Mils (M). A 250MCM wire is wire with an area equal to 250 x 1000 Circular Mils. The illustrations show that a circle can be 1 Circular Mil, but a square can be one too!

What size is 250 MCM?

For example, one common wire size used in the NEC has a cross-section of 250,000 circular mils, written as 250 kcmil or 250 MCM, which is the first size larger than 0000 AWG used within the NEC. 1000 circular mil equals 0.5067 mm2, so for many purposes, a ratio of 2 MCM ≈ 1 mm2 can be used with negligible (1.3%) error.

What is the diameter of 750 MCM wire?

1.170 inches
Specifications: Size AWG: 750. Weight per 1,000 ft: 2480 lbs. Outside Diameter: 1.170 inches.

What is the diameter of 1000 MCM cable?

1.310
Specifications: Size AWG: 1000. Weight per 1,000 ft: 3263 lbs. Outside Diameter: 1.310.

What is MCM size?

MCM is an abbreviation for thousands of circular mils, an old measurement of wire gauge. 1 MCM = 1 kcmil = 0.5067 square milimeters. A mil is 1/1000 inch. A wire 200 mils in diameter is 40 MCM.

How many inches is 750 MCM?

Product Details

Cable Type	THHN/THWN-2
Stranded or Solid	Stranded
Number of Strands	61
O.D. (Inches)	1.156
Ampacity	535

What is the diameter of 750 MCM?

How many amps can 350 mcm carry?

Related Resources

Size	Temperature Rating of Copper Conductor
(AWG or kcmil)	60°C (140°F)	90°C (194°F)
350 KCMIL	260	350
400 KCMIL	280	380
500 KCMIL	320	430

What is MCM in wire size?

circular mils
MCM is an abbreviation for thousands of circular mils, an old measurement of wire gauge. 1 MCM = 1 kcmil = 0.5067 square milimeters. A mil is 1/1000 inch.

What is MCM AWG?

Glossary Term: MCM MCM is an abbreviation for thousands of circular mils, an old measurement of wire gauge. 1 MCM = 1 kcmil = 0.5067 square milimeters. MCM is generally used for very large-diameter wire. Most wire uses AWG. MCM is also used for “million cubic meters.”