Interface relays and optocouplers, series: R600
Programmable logic controllers (PLCs) play a central role in today's industrial control systems. The PLC receives sensor signals from the system and controls actuators. These are normally connected to the PLC via electrical cables. This means that the PLC is not decoupled from the industrial environment, so that overvoltages, current peaks and line-related interference can affect its functionality. Interface relays and optocouplers from ABB ensure galvanic decoupling of the PLC and allow a wide range of adjustments of voltages (from 5 to 250 V) and currents (from 0.01 to 8 A) as well as high isolation between input and output of 2 to 4 kV. For high switching frequencies