What is a branch circuit?

A branch circuit is a section of an electrical system that consists of conductors supplying power to outlets or devices. It typically originates from a circuit breaker or fuse in the main electrical panel and extends to various electrical outlets or devices within a building.

Branch circuits are designed to provide power to specific areas or appliances and are protected by a circuit breaker or fuse that limits the amount of current that can flow through the circuit. They are usually rated for a specific voltage and amperage depending on the electrical load they are intended to support.

Common types of branch circuits include lighting circuits, appliance circuits, and dedicated circuits for high-powered devices such as air conditioners or kitchen appliances. Proper sizing and installation of branch circuits are essential to ensure the safety and efficiency of an electrical system.