The Phoenix PLC-OSC Series of relay modules features terminal blocks with screw connection and plug-in miniature solid-state relay, suitable for DIN-rail mounting.

A relay is a switch that can be turned on and off, determining whether the current can pass through. Relay modules are used to control and protect against emergency conditions in applications such as modern power, large radio-electronic, electro physical and X-ray installations.

Relay interfaces are a sophisticated and convenient way to operate a relay. They predominantly contain switches that enable the contacts that they are housed into become either closed or open, on or off. They are a great way to organise and operate a relay, helping them improve a relay's performance.