Series 70, 3-phase 380-415 V AC monitoring with N-conductor monitoring (not selectable). Adjustable functions: undervoltage, overvoltage, over-undervoltage range, voltage error memory selectable, phase sequence, phase failure, phase asymmetry and N-conductor interruption. Operating range of the supply voltage 220 - 510 V AC 50/60 Hz. Rated power: 12.5 VA,/1W. Contact: 2 changeover contacts for 8 A. Switch-off delay time adjustable from 0.5-60 seconds. Switch-on lock-out time 1 second. Device width 35 mm.