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This Supco SPP E series electronic potential relay style hard start kit has a two-wire installation connection for starting motors. This electronic relay meets Original Equipment Manufacturer (OEM) requirements for relays to fit multiple applications. It has an instant re-start feature and a voltage-sensing capability. This relay has a back-up electronic timing circuit to protect the compressor can be used on permanent–split capacitor (PSC) and capacitor start induction run (CSIR) type compressors. This hard start electronic potential relay is Underwriter's Laboratories (UL) recognized and North American Technician Excellence (NATE) certified and is suitable for use in heating, air conditioning and refrigeration applications.
Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.
Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. The company, founded in 1945, is headquartered in Allenwood, NJ.
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