What Does MCM Stand For In Wire Size?
What Does MCM Stand For In Wire Size? What does MCM stand for in wire 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. MCM