This Eaton LS-S02--ZB safety interlock switch is for the LS-Titan safety position switch used for monitoring electric signals in safety devices for emergency shut-off. It has a double-pole, double-throw (DPDT) contact configuration with two normally closed (NC) contacts. This interlock switch fits the Key actuator type of the LS-Titan series and has screw terminals. This safety interlock switch is Underwriter's Laboratories (UL) Recognized for safety and Canadian Standards Association (CSA), European Conformity (CE) and China Compulsory Certification (CCC) certified for quality assurance.SpecificationsContact formDPDT NCCoil voltage24 VDCMaximum contact current3 ampOperating temperature-25 to +70 degrees CStandards metUL (Underwriter's Laboratories)CSA (Canadian Standards Association)CE (European Conformity)CCC (China Compulsory Certification) 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. Eaton manufactures electrical, hydraulic, and mechanical power equipment. The company, founded in 1911, is headquartered in Dublin, Ireland.