Mon Oct 15 22:21:27 2018
Mon Oct 15 22:21:27 2018
LINETRAXX® CMD420/CMD421

LINETRAXX® CMD420/CMD421

De stroombewakingsapparaten CMD420/421 bewaken AC-stromen door middel van drie meetingangen op overstroom, onderstroom of onder- en overstroom (vensterfunctie). De stromen worden gemeten als rms-waarden (AC). De actuele meetwaarden worden continu op het LCD-scherm weergegeven. Het betreffende meetkanaal kan met de knop omhoog of omlaag worden geselecteerd. De meetwaarden die leiden tot schakeling van de alarmrelais worden opgeslagen. Door instelbare vertragingstijden kan rekening worden gehouden met systeemspecifieke eigenschappen zoals apparaatgerelateerde inschakelstromen, kortstondige stroomveranderingen, enz.

Voor de meting moeten drie standaardstroomtransformators op de betreffende DMC420/421 worden aangesloten. De omzettingsratio n van de stroomtransformator (n = x/1A of n = x/5A) is in te stellen tot een factor van n = 2000.

  • Kenmerken
  • Toepassingen
  • Accessoires
  • Bestelgegevens
  • Downloads
  • Undercurrent and overcurrent monitoring in AC systems with prealarm and main alarm or current monitoring with window discriminator function
  • Current monitoring using current transformers, suitable for standard transformers x/1 A, x/5 A (depending on the device type)
  • Transformation ratio n allows adaptation to all standard current transformers x/1 A, x/5 A
  • Start-up delay, response delay and delay on release
  • Adjustable switching hysteresis
  • r.m.s. value measurement AC
  • Digital measured value display via multi-functional LC display
  • LEDs: Power On, Alarm 1, Alarm 2
  • Fault memory for the operating value
  • Cyclical self monitoring
  • Internal test/reset button
  • Two separate alarm relays with one changeover contact each
  • N/C or N/O operation and fault memory behaviour selectable
  • Password protection for device setting
  • Sealable transparent cover
  • Two-module enclosure (36 mm)
  • Push-wire terminal (two terminals per connection)
  • RoHS compliant
  • Current consumption of motors, such as pumps, elevators, cranes
  • Monitoring of lighting circuits, heating circuits, charging stations
  • Monitoring of emergency lighting
  • Monitoring of screw conveyors, e.g. in sewage plants
  • Dust removal in wood working
  • 70 % agreement in accordance with EEG 2012 for PV inverters

 

Optionele accessoires voor LINETRAXX® CMD420/CMD421


TypeArt No.
Mounting clip for screw mounting (1 piece per device)B98060008

Varianten van LINETRAXX® CMD420/CMD421


TypeSupply voltage US*MeasurementResponse valueArt. No.**
CMD420-D-1AC 16…72 V / DC 9,6 V…94 V, 15…460 Hzvia current transformer x/1A0,1…1 A x nB73060006
B93060006
CMD420-D-2 AC/DC 70…300 V 15…460 Hzvia current transformer x/1A0,1…1 A x nB73060007
B93060007
CMD421-D-1 AC 16…72 V / DC 9,6 V…94 V, 15…460 Hzvia current transformer x/5A0,5…5 A x nB73060008
B93060008
CMD421-D-2 AC/DC 70…300 V 15…460 Hzvia current transformer x/5A0,5…5 A x nB73060009
B93060009
* Absolute values
**(B7… = push-wire terminal / B9… = screw-type terminal)

Downloads voor LINETRAXX® CMD420/CMD421

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