Rated supply voltage: 220-230-240-380-400-415-440-460 V AC Rated operating voltage: 187 - 529 V AC Rated supply frequency: 50/60 Hz Voltage measurement range: 176 V - 552 V AC Frequency measuring range: 45 Hz - 65 Hz Action time when phase failure or phase sequence: < 0.5 s Action time delay range: 0.1 - 10 s Fixed hysteresis value: 2% of rated operating voltage Voltage measuring error: ≤ 1% Time delay error: ±10% +0.1 s Konb setting accuracy: 1% Rated insulation voltage: 460 V Contact configuration capacity: 8 A Protection level: IP20 Pollution degree: III Use category: AC-15 Contact capacity: Ue/Ie 250 V/1.5 A Output type: 1 C/O