Circuit Breakers, Breaker Boxes & Fuses - Lowe's Get plugged in at Lowe's. Find circuit breakers including AFCI/GFCI breakers, breaker boxes & safety switches, & fuses including plug fuses & cartridge fuses.Main Lug · Standard Circuit Breakers · Afci/Gfci Circuit Breakers · Breaker Switches · Square D What is the Difference Between a Fuse and a Circuit Breaker? Mar 31, 2019Large power overloads may potentially destroy electrical equipment, or in more serious cases, cause a fire. A fuse and circuit breaker both serve to protect an overloaded electrical circuit by interrupting the continuity, or the flow of electricity. How they interrupt the flow of electricity is very different, however.