The 2967471 is a Solid State Relay PLC Interface Module with SPST-NO contact and spring terminals. This DIN-rail-mount relay module features functional plug-in bridges, protection against polarity reversal and free-wheeling diode, integrated input circuit, efficient connection to system cabling using V8 adapter and RT III sealed solid-state relay. PLC interface consists of basic terminal block PLC-BSC with spring-cage connection and plug-in miniature solid-state relay, for mounting on DIN rail NS 35/7,5, 1 N/O contact.