safety relay for failsafe controllers up to silcl 3, cat. 4, pl e, 1-channel operation, automatic start, 1 enabling current path, us = 24 v dc according to iec 61131-6, fixed screw terminal block
coupling relay for sil 3 high and low-demand applications, couples digital output signals to the i/o, 1 enabling current path, 1 confirmation current path, safe state off applications, test pulse filter, fixed screw terminal block