Digital monitoring relay voltage monitoring, 22.5 mm from 17 to 275 V AC/DC over- and undershoot internal power supply DC and AC 50 to 60 HZ spurious peak lag 0.1 to 20 s hysteresis 0.1 to 150 v 1 changeover contact with or without error memory screw terminal replacement product for 3ug3534, 3ug3535
