A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as to make contacts, break contacts, or combinations thereof. Relays are used where it is necessary to control a circuit by an independent lowpower signal, or where several circuits must be controlled by one signal. Features. Compressor Relay for 1253001 RVA2AE3C105. Made with high quality materialSpecifications. Length 1.95. Width 2.25. Height 1.5