How is a circuit breaker symbol represented in TPC schematics?

In TPC schematics, the circuit breaker symbol is represented by a circle with a break in the line. This design effectively conveys the function of a circuit breaker in electrical diagrams. The circle itself usually represents the component, while the break signifies that the circuit can be interrupted or opened, emphasizing the electrical safety feature of the device. This visual distinction helps anyone reading the schematic quickly identify a circuit breaker and understand its operational role in the circuit, which is crucial for troubleshooting and safety assessments.

The other representations do not accurately depict the characteristics of a circuit breaker. A simple line with a dot does not convey any functional interruption, a rectangle with 'CB' written across is not standard notation for a circuit breaker in TPC schematics, and a square with a slash might represent different components or functionalities, such as a fuse or switch, rather than a circuit break. Hence, the choice of a circle with a break is the correct and widely recognized representation of a circuit breaker in this context.