Circuit breakers are grouped for identification according to what factor?

Circuit breakers are grouped for identification primarily based on current ranges. This categorization is essential for ensuring that the circuit breaker can effectively protect the circuit it serves by interrupting the flow of current when it exceeds a predetermined limit. Each circuit breaker is designed to handle a specific range of current, and knowing this range helps electricians and technicians identify the appropriate breaker for a given electrical system.

By focusing on current ranges, professionals can ensure that the selected breaker will trip at the correct amperage to prevent overheating, equipment damage, or fire hazards. Understanding the current rating also enables accurate coordination with other protective devices in the system, contributing to overall safety and efficiency.

While voltage ratings, wire gauge, and type of load are important considerations in electrical systems, they do not provide the same direct identification for circuit breakers as current ranges do.