The RSL series Electromechanical Plug-in Slim Interface Relay offers the advantages of compact size and modular design. Its slim width (6mm) saves space when mounting on a rail at the back of an enclosure. A single reference comprising a standard relay mounted on its socket pre-assembled range. The socket includes a protection circuit (against reverse polarity and surge) and an LED indicator as standard. Two types of connector are available for wire connection screw connectors or spring terminals. This pre-assembled solution covers a wide range of operating voltages from 12 to 230V. The relay (standard or low level) and the socket are selected, as required, according to the operating voltage of the application. For maintenance, an RSL slim relay can be replaced without disconnecting the socket wiring.