1. Home

Discuss in my forum

Electrical Basics 101


4 of 8

Main Breaker
Electric Panel

Electric Panel

Timothy Thiele
A breaker panel consists of a main breaker that is sized according to your homes’ load needs. It is used to turn the power on and off to the entire electrical panel. Typically, homes have a 100 amp or a 200 amp service.

A main breaker of 100 amps will only allow 100 amps to flow through it without tripping. In a tripped state, no current will flow throughout the panel. It is the interrupt between the service and the branch circuits of the panel.

This main breaker protects the main service wires from damages that would occur given an overload. In that case, the wires would heat up and eventually could cause a fire.

©2014 About.com. All rights reserved.