You just might have heard the term "consumer unit" often, and still not understand what it is all about. In fact, as long as you have electricity supply, a consumer unit is something very useful and functional to have. Which in fact you do! Although you might not exactly know what it is or what it does, it is quite easy to recognize. And of course, you need not to be so techy to understand the basic, yet vital details about using a consumer unit. It is mostly located in the utility room, garage or somewhere not so open within the home. This is probably for safety purposes as well.