The 788-303 is a Relay Socket with small switching relay, 1CO contact configuration, AgNi 90/10 contact. Relay socket for DIN 35 carrier rails, CAGE CLAMP® S connection. Solid wires, fine-stranded wires with crimped ferrules or ultrasonically bonded wire ends can be inserted directly. Quick exchange of the relay and the status indication during maintenance, without having to detach the wiring. Safe electrical isolation in accordance with DIN VDE 0140 Part 1.