Circuit breakers, compared to _______, have a much _______. This means that they are capable of interrupting the flow of considerably _____ than could be interrupted by _______.

Circuit breakers, compared to _______, have a much _______. This means that they are capable of interrupting the flow of considerably _____ than could be interrupted by _______.

• A. Fuses, Higher Interrupting Capacity, Higher Voltage, Fuses
• B. Switches, Lower Interrupting Capacity, Higher Current, Switches
• C. Fuses, Lower Interrupting Capacity, Higher Voltage, Fuses
• D. Switches, Higher Interrupting Capacity, Higher Current, Switches

Answer: (D)

The main idea here is about interrupting capacity—the ability of a protective device to break an electrical current without failing. Circuit breakers are designed to handle and interrupt much higher fault currents than a simple switch. This means they can safely interrupt currents that would cause arcing or damage if a switch were used instead. Because switches have a lower interrupting capacity, they aren’t suited to breaking large fault currents. So, circuit breakers, compared to switches, have a much higher interrupting capacity, allowing them to interrupt considerably higher current than switches could handle.

The main idea here is about interrupting capacity—the ability of a protective device to break an electrical current without failing. Circuit breakers are designed to handle and interrupt much higher fault currents than a simple switch. This means they can safely interrupt currents that would cause arcing or damage if a switch were used instead. Because switches have a lower interrupting capacity, they aren’t suited to breaking large fault currents. So, circuit breakers, compared to switches, have a much higher interrupting capacity, allowing them to interrupt considerably higher current than switches could handle.