421-03 - Making Connections in a Junction Box

421-03 - Making Connections in a Junction Box

Learning objectives

  • Define an electrical junction and explain its purpose
  • Describe how to perform the following activities: use a wire nut connector, terminate wires using a terminal strip, and form wire in a junction box

Course overview

An electrical junction box is a container that houses electrical junctions. Junction boxes are an important part of an electrical system. They provide a place to splice and terminate wire. Like any other part of the electrical system, junction boxes have to be well managed for best results.

The Making Connections in a Junction Box training course explains how to make connections and terminations using several systems. This online course covers:

  • Forming the wire
  • Wire nuts
  • Crimp-on terminals
  • Terminal strips
  • Motor connection boxes

Making Connections in a Junction Box is part of the Wiring Installation training series.


The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.


  • 50 minutes
  • Format: Online Interactive
  • English
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