Wire Size Selection Guide

There are a number of factors to consider when determining the correct wire for an industrial application. The below tables can also be used as a valuable resource for evaluating the behavior of wire under various environmental conditions, voltages, and applied temperatures.

Wire Size Ampacity Rating

Wire Size Ampacity Rating

AWG (American Wire Gauge) to mm^2 Gauge Conversion

AWG to Square mm Gauge Conversion

Color standards (United States)

120/240 VAC wire colors
277/480 VAC wire colors
VDC wire colors

Selection criteria for rubber-insulated cables (International)

Rubber-insulated cables

Color coding of conductor wires (International)

Color coding for conductor wires

Allocation to various conductor codes (International)

Conductor codes

Color abbreviations (International)

Color abbreviations

Sources: http://lappusa.com/14030.16description.htm, http://www.engineeringtoolbox.com/awg-wire-gauge-d_731.html, Rittal “Technical Aspects of Enclosures” Handbook, https://www.creativesafetysupply.com/articles/wire-color-codes/

Julyann Tu is an application engineer for AWC, Inc. in the Houston, TX office. She is a Certified Siemens Technology Specialist for Factory Automation and a SITRAIN Certified Instructor for TIA Portal Programming 1. With over 8 years of experience in industrial automation, she has a BS in Industrial Engineering from Texas A&M University and an MBA from University of Houston-Clear Lake.

Julyann Tu

App Engineer/
Tech Support

Julyann Tu

App Engineer/
Tech Support

Julyann Tu is an application engineer for AWC, Inc. in the Houston, TX office. She is a Certified Siemens Technology Specialist for Factory Automation and a SITRAIN Certified Instructor for TIA Portal Programming 1. With over 8 years of experience in industrial automation, she has a BS in Industrial Engineering from Texas A&M University and an MBA from University of Houston-Clear Lake.
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