Monitoring relay attachable to contactor 3rt2. size s0 basic, analog adjustableapparent current monitoring 4 - 40a, 50-60 HZ, 2-phase supply 24-240 V AC/DC 1 co contact monitoring for current overshoot/undershoot phase failure, wire breakwith or w/o error log on-delay 0-60 s spurious peak suppr.0-30 s switching hysteresis 6% screw connection