SIEMENS 3UG5816-1AA40 – digitally adjustable monitoring | JUAL SIEMENS 3UG5816-1AA40 – digitally adjustable monitoring relay phase failure, phase sequence, asymmetry, frequency, overvoltage and undervoltage monitoring with/without N conductor for IO-Link 3x 90-690 V AC, 15-70 Hz 1 changeover contact screw terminal