3 Phase Circuit Breaker Symbol

By | March 15, 2023



Circuit breakers are essential components in any electrical circuit. They protect the circuit from surges, overcurrents, and short circuits that can damage the wiring and appliances connected to the circuit. The symbol for a three-phase circuit breaker is a three-pronged triangle with a horizontal line in the center, representing the three phases.

The first phase, known as the "hot" phase, carries the current and is usually colored black. The second phase, known as the "neutral" phase, completes the circuit and is usually colored white. The third phase, called the "ground" phase, provides a safe path for electricity to be diverted from the circuit and is usually colored green.

The three-phase circuit breaker symbol is important in identifying which circuit breaker will provide the appropriate protection for the specific type of circuit. By using this symbol, electrical engineers and technicians can ensure that the right breaker is chosen for the job. It is also used to indicate which breaker should be used in a parallel configuration, allowing for more power to be delivered to the circuit.

The three-phase circuit breaker symbol is critical for safety and operation in modern electrical systems. It helps to protect the system from damage caused by surges, overcurrents, and short circuits, ensuring that the system runs smoothly and efficiently. The symbol also allows technicians to identify the appropriate breaker for the circuit, preventing potential issues due to incorrect wiring or installation.


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