First time here?

Watch the Video

Loading...

Type a few more letters...

We can't find what you're looking for.

Maybe try a different search, or explore our library.

Lesson

Adventure

Reference

Video

Simulation

Puzzle

Manual

Workbook

Poster

Quiz

Instructor's Guide

Fuses & Circuit Breakers

This mini-session gives you a quick overview of these critical circuit protection devices. The theory behind how they work is pretty simple, but there are a handful of varieties that are worth knowing about. Plus, what LunchBox Session would be complete without a look at inspection and troubleshooting! You can learn a lot from studying a blown fuse, and use this knowledge to adjust your system for better, safer performance in the future.

Ready to move on?
You should be able to:

  • Identify healthy and blown fuses, using your eyes and your digital multimeter.
  • Use the damage in a blown fuse to learn about deeper issues in your system.
  • Discuss the common types of fuses, like slow blow and fast acting, and types of circuit breakers, like thermal and magnetic.
g>