The wire that goes to a circuit breaker depends on the specific installation and the electrical circuit being connected. In general, the black or red wire is connected to the breaker's terminal screw, which is usually labeled "hot" or "load." The white wire is connected to the neutral bus bar, which is typically located near the breaker panel. It's essential to follow the manufacturer's instructions and consult a licensed electrician to ensure proper wiring and safety protocols are followed.