Which of the following statements about circuit breakers is false?

Prepare for the Motor Protection Exam. Improve your knowledge with flashcards and multiple-choice questions, each with hints and explanations. Ace your test!

Circuit breakers are critical components in electrical systems that enhance safety by interrupting current flow during overloads or short circuits. The statement that they can cause damage to themselves after an overload is inaccurate. When a circuit breaker trips due to an overload, it is designed to break the circuit and prevent further current from flowing. Most circuit breakers are engineered to endure some overload situations without sustaining permanent damage.

If a breaker trips, it may require resetting, but it typically should not suffer from damage unless it is subjected to conditions beyond its ratings repeatedly. In fact, a properly functioning breaker serves as a protective device, designed to safeguard not only the circuit it controls but also the breaker itself from irreversible harm during overload situations. Hence, it is built to handle temporary overload conditions without damaging its internal components.

The other statements correctly reflect the purpose and functionality of circuit breakers. They indeed can be reset after tripping, are primarily designed to enhance safety, and help prevent dangerous electrical accidents by cutting off power in hazardous situations.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy