Question 569Electricity & Electronics - Assistant Engineer

The correct answer is A) directing the arc into an arc chute. When a circuit breaker trips, an electric arc is created between the contacts as they open. This arc can potentially damage the contacts if not properly managed. To prevent this, circuit breakers are designed with an arc chute - a series of metal plates that guide and extinguish the arc. As the contacts open, the arc is directed into the arc chute, where it is cooled and broken up, preventing damage to the breaker contacts. The other options are incorrect because: B) and C) refer to the trip mechanism of the breaker, not the arc management, and D) opening the contacts slowly would not effectively manage the arc.