NF20_144, Power Factor Controller, 144 x 144mm

Item number: NF20_144ff

  • Programmable switch-on time, switch-off time and discharge time
  • Alarm message and relay
  • Monitoring of the individual capacitor power values
  • Programmable individual capacitor banks in kVar values
  • Operation time of capacitor
  • Capacitor switching count helps in increasing life of capacitor banks
  • LCD display with 2x16 characters for ease of readability
  • Relay steps: 6, 8 or 12 switching outputs available
  • Measurement around 73 (MODBUS) electrical parameters (40 displayed on display)
  • True RMS measurement up to 31st harmonics
  • Wide voltage measuring input: 30 to 550VAC (L-L / L-N) with accuracy of 0.5%
  • Four-quadrant operation
  • Interface RS485 MODBUS for monitoring the PFC parameters remotely (optional)
  • Wide auxiliary supply voltage range: 110 to 550VAC/DC
  • 3 years warranty
  • Category: Process Controls

    Number of Outputs

    starting from 384,37 €

    including19% VAT.

    Exp. shipping time: ca. 1-2 weeks

    There are variations of this item. Please select the variation you wish.


    NF20_144, Power Factor Controller, 144 x 144mm

    The NF20_96 from LUMELis a power factor controller for reactive power compensation. It controls the external reactive power element (capacitor bank, not supplied) to meet reactive power demand of the load. This reduces burden on source to supply additional reactive current. Precise and fast measurements are useful tools for system analysis. Powerful protection function protects system and switching element in case of system faults.
    The NF20_96 is designed for a measuring voltage of 30 to 550V (L-N) or (L-L) and an auxiliary supply voltage of 110 to 550 VAC.
    It features a user interface with a menu-driven display in plain text for maximum ease of operation. Straightforward symbols and alphanumeric displays combine maximum ease of handling with convenient presentation of results.
    Display of various grid parameters, storage of various values and a test run option make it easy to analyse errors and monitor the system.

    Main features:
    + Panel mount,144 x 144mm
    + 6/8/12 switching outputs (please select when ordering)
    + Programable individual banks kvar value
    + Complete menu-guided operation and display
    + Illuminated graphic display with 2 x 16 characters
    + Four-quadrant operation
    + Display of various line parameters (V, I, F, Q, P, S...)
    + Monitoring of the individual capacitor power values
    + Storage of maximum line-parameter and switching-operation values as well as of the turn-on times of individual capacitor contactors
    + Manual / automatic operation
    + Programming of fixed stages and the option of skipping individual outputs
    + Error detection for various states and interference-message output
    + Test run of NF20 system with error analysis
    + Recall function of recorded values
    + True RMS measurement up to 31st harmonics
    + Display of individual voltage and current harmonics in % up to 31st
    + Display of voltage and current total harmonics distortion
    + Display and monitoring of temperature
    + Potential free contact alarm outputs

    Technical data:
    Input voltage: 30-550VAC
    Supply voltage: 110-550VAC
    Number of outputs: 6, 8 or 12 (please select when ordering)
    Alarm output: 1 x relay, max. 250VAC/1000W
    Target Power Factor range: 0.8 Ld to 0.8 Lg
    Switching threshold: 30 to 100%
    Frequency range: 40-70Hz
    Operating temperature: -10 to +60C
    Storage temperature: -20 to +65C
    Operation air humidity: 0-90% RH, non-condensing
    Display: graphic LCD, 2 x 16 characters, update rate: ca. 1s
    Dimensions: 96 x 96 x 56mm
    Weight: 0.5kg
    Housing protection: IP54 (front), IP20 (terminals)
    Warranty: 3 years

    Options upon request and surcharge:
    - with RS-485 MODBUS (only for controllers with 8 relay outputs)
    - with Real Time Clock (RTC)
    - with adaptor plate

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