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About This Item


Full Description

This standard describes application and installation practices and procedures for low-voltage fuses. This publication applies to all classifications of fuses used for overcurrent protection of distribution, utilization, and control equipment used for power, heating, and lighting loads for commercial, institutional, and industrial use in nonhazardous indoor and outdoor locations.

It also covers periodic routine maintenance and troubleshooting procedures for fuses, and special procedures used after adverse operating conditions, such as overcurrents, ground-faults, or exposure to water or other liquids.

Document History

  1. NECA 420-2014


    Standard for Fuse Applications

    • Most Recent
  2. NECA 420-2007

    Standard for Fuse Applications

    • Historical Version