What is a Circuit Breaker?
A circuit breaker is an essential component in electrical systems that protects circuits from damage caused by excessive current flow. It automatically interrupts the electrical supply when a short circuit, overload, or ground fault is detected, preventing electrical fires and equipment damage.
Circuit breakers are commonly found in residential, commercial, and industrial electrical panels. Unlike fuses, which must be replaced after they blow, circuit breakers can be reset after they trip, making them more convenient and cost-effective.
In HVAC systems, circuit breakers protect air conditioners, furnaces, and heat pumps from electrical surges or motor failures. If an HVAC unit repeatedly trips its breaker, it may indicate a problem such as a dirty air filter, faulty wiring, or an overworked compressor.
Electricians often inspect and replace circuit breakers to ensure electrical safety and system reliability. Upgrading to modern breakers, such as arc-fault or ground-fault circuit interrupters (AFCIs/GFCIs), enhances protection against electrical hazards in homes and businesses.
