The arc resulting from the tripping of a circuit breaker is prevented from damaging the contacts. How is this done?

Correct Answer: Option A — directing the arc into an arc chute

Arc chutes utilize series of insulated plates to split, elongate, and cool electrical arcs rapidly during circuit breaker tripping. This prevents destructive burning and pitting of the main current-carrying contacts, complying with IEEE 45 switchgear design guidelines.