The A202K1EA is a lighting contactor from the Westinghouse product line, now associated with Cutler‑Hammer/Eaton. It is an electromechanical switching device used in commercial and industrial electrical systems to control lighting and other AC loads. When the appropriate control voltage (often 120 VAC) is applied to its coil, the internal contacts close to supply power to connected loads; when the control voltage is removed, the contacts open to disconnect the load. This type of contactor is commonly installed in lighting panels, power distribution boards, and control circuits where reliable and repeatable switching of multiple circuits is required. It provides robust performance in building and facility electrical applications.