LZS:RT4A4L24A

output optocoupler, 110-230 V AC/DC, 1 NO contact, screw terminal, width 6.2 mm, thermal current 5 A

It allows low voltage signals to higher voltage circuits. It gets activated when a voltage is applied to the coil, which generates magnetic fields.

Positively driven coupling relay in industrial enclosure 2 NO contacts / 2 NC contacts 24 V DC SIL 2 / PL c screw terminal

force-guided coupling relay in industrial enclosure 1 NO contact / 1 NC contact (24 V) 24 V DC SIL 3 / PL e screw terminal