![]() To the extent permitted by applicable law, no responsibility or liability is assumed by Schneider Electric and its subsidiaries for any errors or omissions in the informational content of this material or consequences arising out of or resulting from the use of the information contained herein. Schneider Electric products and equipment should be installed, operated, serviced, and maintained only by qualified personnel.Īs standards, specifications, and designs change from time to time, information contained in this guide may be subject to change without notice. Schneider Electric does not grant any right or license for commercial use of the guide or its content, except for a non-exclusive and personal license to consult it on an "as is" basis. Conductor Ampacity Based on the 2017 National Electrical Code® Ampacity based on NEC®Table 310.15(B)(16) (formerly Table 310. No part of this guide may be reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), for any purpose, without the prior written permission of Schneider Electric. The aluminum wire ampacity chart basically tells you how many amps can aluminum wires handle. The proper amperage is determined by the size of the wire, ambient temperature, number of wires installed together, the types and number of electrical devices connected on a circuit. ![]() Ampacity This is the most important factor in selecting any conductor cable. This guide and its content are protected under applicable copyright laws and furnished for informational use only. Ampacity is the maximum continuous current carrying capacity of a wire inside a cable or raceway. As a general rule, size your wires according to your lowest (limiting) ampacity calculation for conductors, and the lowest (limiting) temperature rating for terminal connections. All other brands may be trademarks of their respective owners. This article covers general requirements for conductors and their type designations, insulations, markings, mechanical strengths, ampacity ratings, and uses. The Schneider Electric brand and any trademarks of Schneider Electric SE and its subsidiaries referred to in this guide are the property of Schneider Electric SE or its subsidiaries. *ġ2 Refer to 240.4(D) for conductor overcurrent protectionġ0 Refer to 240.4(D) for conductor overcurrent *ġ4 Refer to 240.4(D) for conductor overcurrent protection limitations. Using the National Electrical Code (NEC) Ampacity Charts: Determining Current-Carrying Capacity of Conductors Various tables and charts indicate conductor ampacity, temperature correction factors, and adjustment factors in NFPA 70, National Electrical Code (NEC). THWN-2, RHH, RHW-2, USE-2, XHH, XHHW, XHHW-2, ZW-2įor conductor overcurrent protection limitations.
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