Gould A102C is a general purpose control relay used in electrical control systems. It consists of an electromagnetic coil and multiple sets of contacts that open or close when the coil is energized, allowing low‑power control signals to switch higher‑power circuits. Relays like the A102C are commonly used for logic switching, interlocking, timing, and sequencing functions in industrial machinery and automation panels. The part may include several changeover (SPDT) contacts, providing flexibility for different control configurations. It provides electrical isolation between the control input and the switched output for safer and more reliable operation.