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Lumel-ND20CT
1- and 3-phase power network meter

It enables quick, easy and convenient installation of dedicated 1- and 3-phase current transformers and additionally eliminates the risk of a faulty connection of a meter with the transformers. It provides a perfect solution for controlling and monitoring of parameters regarding the energy quality and on top of that it enables controlling and optimisation of functioning of various power electronic devices, systems and industrial installations. Measurement of power network parameters in 1-phase and 3-phase (3 or 4-wire) systems. Current inputs 0.1A and 0.25A (for dedicated transformers). Quick and convenient ways to connect current transformers via RJ12 connector or screw terminals. THD factor measurement. Backlighted LCD 3.5”. Protection grade from the frontal side: IP65. Digital transmission to the master system through the RS-485 interface (MODBUS RTU). Programmable outputs: analog (option), alarm and pulse (energy). Setting up of displayed pages. ND20CT is designed to be used in conjunction with the following CTs: LJ12 - 1-phase CT with RJ12 connector and 100mA output, connected  through a splitter to ND20CT meter  ranges 50-250A, class 1or 0.5* LJ25, LJ35, LJ45 - 3-phase, integrated in one housing with RJ12 connector and 100mA output LJ25, ranges 60-200A, class 1 or 0.5* LJ35, ranges 60-250A, class 1 or 0.5* LJ45, ranges 250-600A, class 1 or 0.5* L308, L306, L307 - 3-phase, integrated in one housing with screw terminals and 250 mA output L308, range 63A, class 0.5 L306, range 125A, class 0.5 L307, range 250A, class 0.5 class

It enables quick, easy and convenient installation of dedicated 1- and 3-phase current transformers and additionally eliminates the risk of a faulty connection of a meter with the transformers.

It provides a perfect solution for controlling and monitoring of parameters regarding the energy quality and on top of that it enables controlling and optimisation of functioning of various power electronic devices, systems and industrial installations.

  • Measurement of power network parameters in 1-phase and 3-phase (3 or 4-wire) systems.
  • Current inputs 0.1A and 0.25A (for dedicated transformers).
  • Quick and convenient ways to connect current transformers via RJ12 connector or screw terminals.
  • THD factor measurement.
  • Backlighted LCD 3.5”.
  • Protection grade from the frontal side: IP65.
  • Digital transmission to the master system through the RS-485 interface (MODBUS RTU).
  • Programmable outputs: analog (option), alarm and pulse (energy).
  • Setting up of displayed pages.
  • ND20CT is designed to be used in conjunction with the following CTs:
    • LJ12 - 1-phase CT with RJ12 connector and 100mA output, connected  through a splitter to ND20CT meter 
      • ranges 50-250A, class 1or 0.5*
    • LJ25LJ35LJ45 - 3-phase, integrated in one housing with RJ12 connector and 100mA output
      • LJ25, ranges 60-200A, class 1 or 0.5*
      • LJ35, ranges 60-250A, class 1 or 0.5*
      • LJ45, ranges 250-600A, class 1 or 0.5*
    • L308, L306, L307 - 3-phase, integrated in one housing with screw terminals and 250 mA output
      • L308, range 63A, class 0.5
      • L306, range 125A, class 0.5
      • L307, range 250A, class 0.5 class

As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
All of our products ensure maximum reliability even in challenging working conditions and help your business operations run smoothly. The products we offer in industrial automation, energy management, cabling solutions, and many other areas adapt flexibly to the needs of different sectors.
Additionally, our products are manufactured using only high-quality materials and comply with international standards. Through the solutions we provide, we enable our customers to increase operational efficiency and optimize costs. Our company closely follows technological advancements and continuously offers innovative products to help our customers gain a competitive advantage.
On each of our product pages, you can find comprehensive information about technical details, areas of use, and product features. You can explore all the products you need to strengthen your industrial processes on our website and enjoy a seamless purchasing experience.

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