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. Supco manufactures test instruments and replacement parts for heating, ventilation, air conditioning, and refrigeration systems. Fully insulated terminal connectors Völkl Cyclone 200m Reel Tennis Racquet Strings 16g / 1.30mm - Fluro Orange Comes with spade connectors and fully insulated terminal connectors · Uses 3 American Wire Gauge (AWG) 10 wires, with each wire 3 feet in length · Installation... Kit de conectores y accesorios para compresor. 17 Piezas 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. Terminal repair kit for use in compressors up to 5 hp Spade connectors included Spade Connectors Compressor Terminal Repair Kit – CEL Distributors | Air Conditioning 10 Awg Wire 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. 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. This Supco EC10 terminal repair kit is for use in compressors up to 5 hp . 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.