The answer to 'electrical panel vs' is that an electrical panel and an electrical circuit breaker serve different but complementary functions in a home's electrical system. An electrical panel is the main distribution center for all the electrical circuits in a home, while a circuit breaker is a safety device that automatically shuts off the flow of electricity when it detects a problem, preventing electrical fires and damage.
Electrical panels come in different sizes and configurations to handle the electrical load of a home, and they contain multiple circuit breakers that protect individual circuits. Circuit breakers are installed within the electrical panel and are designed to trip, or shut off, when they detect an electrical overload or short circuit, cutting off power to prevent damage. Upgrading an electrical panel or replacing old circuit breakers can improve a home's electrical safety and capacity.