In a 120V circuit, how are overloads connected to the contactor?

In a 120V circuit, overloads are connected in series with the contactor for a specific purpose. When connected in series, the overload protection device monitors the current flowing through the circuit. If the current exceeds a certain level due to an overload condition, the overload relay will open its contacts, interrupting the circuit and de-energizing the contactor. This ensures that the motor or load is protected from overheating and potential damage caused by excessive current.

The series connection is crucial because it allows the overload relay to effectively control the power supply to the load based on the current flowing through it. Without this series connection, the overload relay would not be able to accurately monitor or respond to overload conditions, thus compromising the safety and reliability of the electrical system.

While other options might involve protection or control methods, they do not fulfill the same protective role or function as connecting the overload in series with the contactor.