Undervoltage relay 3AC50-400Hz - Voltage monitoring relay 400V AC AA 9943.12/001 380V

Undervoltage relay 3AC50-400Hz - Voltage monitoring relay 400V AC AA 9943.12/001 380V – Dold – 0014838 – 4030641148386: Undervoltage relay 3AC50-400Hz AA 9943.12/001 380V, design of the electrical connection=screw connection, with removable terminals=no, 1-phase undervoltage possible=no, 3-phase undervoltage possible=yes, 1-phase overvoltage possible=no, 3-phase overvoltage possible=no, 1-phase window possible=no, 3-phase window possible=no, includes DC undervoltage function=no, includes DC overvoltage function=no, includes DC window function=no , voltage measuring range 1=400 V, type of voltage of the measuring range=AC, rated control supply voltage Us at AC 50 Hz=380 V, rated control supply voltage Us at AC 60 Hz=380 V, type of voltage for actuation=AC, response value voltage=340..420 V, number of Contacts as changeover contact=2, width=45 mm, height=77 mm, depth=127 mm, undervoltage relay according to IEC/EN 60 255, DIN VDE 0435-303, arithmetic mean value measurement, response and release value adjustable, for networks with or without neutral conductor , quiescent current principle ( Output relay not activated in the event of an error), LED displays for operational readiness and contact position, insensitive to harmonics, suitable for networks from 50 ... 400 Hz