voltage and frequency relay, enclosure 1/6 19″, 3 x V, 3 BI, 5 BO (2 change-over contacts), 1 live contact, rated auxiliary power: 60 to 250 V DC,115 V AC, 230 V AC installation enclosure, screw terminals, region world, IEC / ANSI language English (can be changed), front membrane standard, system interface port B (device underside, rear) PROFIBUS DP slave, electrical RS485 without system interface, port A, measurement: fault recording, mean value formation, min./max. values, functionality: voltage and frequency protection and synchro check
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