Re^3™ Lead Wire Ampacity Calculator

Compute the ampacity of appliance wires, hook‑up and lead wires for OEM equipment, Factory Automation systems, and Data Center applications under standard installation conditions, using values from the Neher–McGrath thermal analysis method and applying correction factors for ambient temperature and conductor grouping.

Ampacity numbers considered shaded cables. For installation conditions other than those shown, please contact CableTechSupport@southwire.com.

DISCLAIMER
The recommendations are based on Southwire’s general interpretations of the latest codes & standards. It is the sole responsibility of a Licensed Electrician and the discretion of the local AHJ (Authority Having Jurisdiction) to approve products for a site-specific installation. There might be local regulations or unique conditions that might limit product use. As a result, our responses above are for reference only. We advise the end users to consult with a licensed electrician and the AHJ before purchasing and installing any Southwire products.

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This software and all related documentation, source code, and content are the copyrighted property of Southwire Company, LLC and are protected by U.S. and international copyright laws. Unauthorized copying, modification, distribution, or use of this software is strictly prohibited.

Re3™ Lead Wire Ampacity Calculator

Re^3™ Lead Wire Ampacity Calculator