What is a circuit breaker?

A circuit breaker is an automatic switch mounted in your home's electrical panel that detects excessive current and cuts power to prevent fire, damage, and shock hazard. When electricity flowing through a circuit exceeds its rated capacity, the breaker's internal mechanism trips, breaking the connection and stopping current flow. Unlike older fuses that burn out and require replacement, breakers reset and can be used repeatedly.

The three main types serve different protection roles:

• Standard breakers protect circuits from overload and short circuits by monitoring total current. They handle general loads like lights and outlets throughout the house.
• GFCI breakers (ground fault circuit interrupter) detect imbalances between outgoing and returning current, which signal current leaking to ground. They trip much faster than standard breakers and are required in kitchens, bathrooms, and outdoor areas where water contact is likely.
• AFCI breakers (arc fault circuit interrupter) sense the distinctive electrical signature of arcing, a dangerous condition where electricity jumps across a gap. Building codes require AFCIs on bedroom circuits and other areas where fire risk from arcing is highest.

Standard panels in Sanford homes typically contain a mix of these types depending on code requirements and installation date. If you need to upgrade your panel to add more circuits or replace aging breakers, electricians in the area can assess your setup and recommend the right configuration for your home's needs.