Overcurrent Protection; Fuses and Breakers

Learning objectives

  • Compare single element and dual element fuses
  • Explain the difference between an overload and a short circuit
  • Identify one main difference between a fuse and a breaker
  • Describe how current limiting fuses and breakers can limit the fault current
  • Discuss selective coordination for fuses and breakers

Course overview

Electrical circuits must have overcurrent protective devices that protect personnel, electrical devices, and conductors. Understanding the basics of fuses and breakers is important to safely and efficiently troubleshoot and repair electrical circuits.

The Overcurrent Protection, Fuses, and Breakers training course identifies fuse and breaker types used in electric distribution systems. It also explains how they work. This online course describes:

  • Fuse types
  • Fuse selection
  • Selective coordination
  • Circuit breakers
  • Breaker selection
  • Breaker coordination

Overcurrent Protection, Fuses, and Breakers is part of the Electrical Protection and Grounding training series.

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