Interface relays and optocouplers are useful to link sensors and actuators in the process, which are connected to the PLC via conventional wires. The interface modules providing both voltage-current level adaptation and isolation.
Build in RC-circuits to increase the contact-life Screw or spring terminals available Compact design with a width from 6 mm or 12 mm LED for relay status Holes for holding 2 mm test plugs to simplify any measurements
