| Item Description | UFR1001, sealable voltage and frequency relay, AC/DC 24-240V / voltage and frequency relay monitoring of over- and underfrequency, voltage and 10-MINUTES-AVERAGE monitoring of vector-shift measuring ranges 40-520 V / 45-65 HZ measuring of true RMS response time adjustable 0, 05...60, 0 s 4 digit digital display for measured values and programming 5 preset programs limits and hysteresis adjustable code protection and sealing for settings MIN/MAX storage for measured values alarm counter for up to 100 alarms output relay 2 x changeover contacts display of operating status with leds housing width 70 MM, mounting height 55 MM snap-on mounting on DIN-rail or with screws (option) supply voltage AC/DC 24-270 V |