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LINETRAXX® VMD420

LINETRAXX® VMD420
6Pages

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LINETRAXX® VMD420 Voltage and frequency monitor for monitoring of 3(N)AC systems up to 0…500 V for undervoltage, overvoltage, underfrequency, overfrequency, phase sequence, phase failure, asymmetry

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Multi-functional voltage relay for frequency, overvoltage, undervoltage, phase sequence, phase failure and asymmetry monitoring in 3(N)AC systems Product description The multi-functional VMD420 series voltage relay is designed to monitor the frequency, undervoltage and overvoltage and the voltage between two threshold values in 3(N)AC systems. The voltages are measured as r.m.s. values. The currently measured value is continuously shown on the LC display. The measured value required to trigger the alarm relay is stored. Due to adjustable response times, installation-specific...

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Three-phase voltage and frequency monitor LINETRAXX® VMD420 Operating elements 1 - ower On LED “ON” (green); lights when supply voltage is applied P and flashes in the event of system fault alarm 2 - larm LED “AL1” (yellow), lights when the set response value A >U/f >f/Asy/PHS is exceeded and flashes in the event of system fault alarm 3 - larm LED “AL2” (yellow), lights when the set response value A >U/f >f/Asy/PHS is exceeded and flashes in the event of system fault alarm 4 - Multi-functional LC display 5 - est button “T”: T A rrow up button: to change the measured value display, move...

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Three-phase voltage and frequency monitor LINETRAXX® VMD420 Ordering information Supply voltage 1) Us AC 16…72 V – 1) Screw-type terminal Push-wire terminal B93010005 B73010005 B93010006 B73010006 Absolute values Dimension diagram XM420 Dimensions in mm Type designation Mounting clip for screw mounting (1 piece per device) Technical data Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Response values Rated insulation voltage 400 V Rated impulse voltage/pollution degree 4 kV/III Protective separation (reinforced insulation) between Type of distribution system 3(N)AC/3AC (3AC)*...

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Three-phase voltage and frequency monitor LINETRAXX® VMD420 Technical data (continued) Specified time Start-up delay t Response delay ton1/2 Delay on release toff Resolution of setting t, ton1/2, toff (0…10 s) Resolution of setting t, ton1/2, toff (10…99 s) Resolution of setting t, ton1/2, toff (100…300 s) Operating time, voltage tae Operating time, frequency tae Response time tan Recovery time tb Displays, memory Display LC display, multifunctional, not illuminated Display range measured value AC/DC 0…500 V Operating uncertainty, voltage at 50 Hz/60 Hz ±1.5 %, 2 digits Operating...

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BENDER Group VMD420_D00137_04_D_XXEN / 04.2022 / © Bender GmbH & Co. KG, Germany – Subject to change! The specified standards take into account the edition valid until 04.2022 unless otherwise indicated. Bender GmbH & Co. KG Londorfer Straße 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • info@bender.de • www

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LINETRAXX® VMD420 6Pages

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LINETRAXX® VMD420
6Pages