Westinghouse A202K3CA2 is a heavy‑duty industrial power contactor used to switch and control large electrical loads in commercial and industrial applications. It typically has multiple poles and is designed to handle high current for motors, lighting, heating, or other large equipment. The contactor operates by energizing a control coil, which pulls in the internal contacts to connect the load; when the coil is de‑energized, the contacts open and disconnect the circuit. These contactors are built for frequent operation and long service life, making them common in motor starter panels, automation systems, and electrical distribution equipment. Westinghouse A202 series contactors are often found in legacy systems and are valued for their rugged construction and reliability.