1. MCM is an abbreviation for Thousands of Circular Mils. Electrical wire larger than 0000 (4/0) is measured in MCM, according to the cross section of the conductor. A mil is 1/1000th of an inch.

MCM is an obsolete unit of measure that has been replaced by kcmil, which means the same thing as MCM.

2. Metal Cold Mirror. A designation (as opposed to EA, Enhanced Aluminum) for the reflector in an ETC SourceFour PAR. MCM is a dichroic coated glass filter reflector allowing heat to pass through and reflecting only visible light. Cannot take a 750W lamp.

This page has been seen 1,138 times.

Industry Advertising

Recent Activity

Readability Information

An automated review of this page attempts to determine its readability in English (US). The page contains roughly 94 words across 10 sentences.
Readability score
Readability score: 38.89
Grade level
For the information in this page to be accessible to the widest audience of readers, both a high readability score and a low grade level are ideal.

Icon Legend

  • Normal page
  • Color code

    • Content has new updates
    • Content has no updates

CB Advertising

Sign up to Advertise Today