The QO Circuit Breaker 60A 2P Square D by Schneider Electric is a high-performance circuit breaker that can handle a large amount of current. This circuit breaker is designed to protect your electrical system from overloads and surges. This circuit breaker is also compatible with Schneider Electric's QO Series circuit breakers. The QO Circuit Breaker 60A 2P Square D by Schneider Electric is a high-performance circuit breaker that can handle a large amount of current. This circuit breaker is designed to protect your electrical system from overloads and surges. This circuit breaker is also compatible with Schneider Electric's QO Series circuit breakers.