MEC relays are a type of electromagnetic relay designed for a wide range of uses including AC and DC power control, motor control, transfer control, and process control. The TD2-2C1-3D relay is a 2-pole, 2-contact, 3-position (DPDT) relay designed for AC power switching applications. It has two contact-sets that are normally open but capable of being closed via an electromagnetic coil. When energized, the contacts attract and make an electrical connection between themselves, allowing electricity to flow. It is suitable for applications that require reliable and fast switching, such as motor control, transfer control, and process control.