Schneider Electric (Square D) LC2D25G7 Reversing Contactor 120V

The Schneider Electric LC2D25G7 is a 120V reversing contactor, a heavy-duty switch used in commercial and industrial applications to change the direction of rotation of single-phase AC motors, such as those found in HVAC systems. This functions by physically switching the connections between the power source and the motor to change the direction of rotation. This is accomplished through an electromagnet that is activated by a low-voltage AC signal, in this case, 120V. This offers several advantages in HVAC applications by enabling equipment such as exhaust hoods and ventilation fans to be switched between forward and reverse operation. The first advantage of reversing contactors is that they offer more control over the direction of airflow. This allows for features like seasonal airflow reversals to maximize comfort and energy efficiency or ductwork purging before the introduction of conditioned air.