Copeland 912-3075-01 Definite Purpose Contactor 120V Coil 3P 75Amp

The Copeland 912-3075-01 is a definite purpose contactor, something similar to a high current relay that's inside the HVAC equipment. It works just like a switch, with its operating mechanism being a low-voltage coil. It changes the internal contacts on-position with the help of an electromagnetic field to allow high current to the connected device, such as the compressor motor. Conversely, the coil with no flow of the current. The definite purpose contactors are reliable and have high endurance, which consequently makes them useful in heating, ventilating, and air conditioning systems. The contactor allows a low voltage signal to control a high power circuit through the separation of the control circuit, which is the coil, and the high power circuit. Definite purpose contactors are designed for these applications because the HVAC equipment is started and stopped frequently.