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

Use this electromechanical solid state interface relay from ABB to reliably transmit digital signals in your automated industrial system. It allows you to connect devices that are isolated from each other, so assists with electrical and information compatibility across your control system. As the unit is galvanically isolated, it protects against interference, which reduces the chance of crosstalk and downtime. Low power loss of approximately 2W means that minimal energy is wasted during the switching process. As this relay snaps onto a DIN rail, installation is quick and easy.

• Screw terminals hold wires securely to reduce the need for regular re-tightening
• Compact dimensions of 67.5 (H) x 6 (W) x 70mm (D) to maximise packing efficiency in your control cabinet
• Compatible with demanding locations, thanks to a wide operating temperature range between -20°C and +70°C

• Automated manufacturing processes
• Food and beverage industries
• Power generation
• Robotics systems

Yes. Due to this relay's galvanic isolation, it's a good choice for safety applications. For example, you can use it as a barrier between your safety circuit and general control circuit.