Monitoring relay for monitoring a three-phase connection for asymmetry, phase failure, phase sequence errors as well as overvoltage and undervoltage. With external error acknowledgement. Response delay adjustable Asymmetry adjustable Error memory selectable 7-segment displays Operating voltage 230 V AC / 50 Hz Current consumption less than 15 mA Response delay 0.1 to 9.9 s, adjustable Asymmetry 5% to 20%, adjustable Switching hysteresis 20% Monitoring voltage 3 x 230/400 V AC, 50 Hz Output contact 2 changeover contacts (DPDT) Switching voltage max. 250 V AC/DC Continuous current max. 8 A Mechanical service life 3 x 107 switching cycles Electrical service life 1.5 x 105 switching cycles Dimensions W x H x D 50 x 69.3 x 60 mm Weight 200 g Operating temperature range -5 °C to +55 °C Storage temperature range -20 °C to +70 °C Protection class housing / terminals IP40 / IP20
