Rail Mounted Energy Analyzers provide the following advantages:

  • Gain on space with rail mounting
  • Modbus-RTU communication
  • THD measurement
  • Network / Generator Tariff Option
  • Circuit breaker for use in Prepaid systems (NDM50 Series)
  • 1 x 230V or 3 x 230/400 V
  • Safe usability with MID, RoHS, CE Documents


It is ideal for users who have a space problem with electrical panels. Mod-bus communication makes it possible to use it in system solutions.

It is suitable for use in places where there is a large energy infrastructure with high measurement points like residential, shopping malls, etc.

It is also suitable for use in communal areas. In systems where the generator is used, this expenditure must be priced separately. Because the energy transmission costs with the generator is higher. This separate measurement in the rail-mounted energy analyzers is available with a network/generator tariff version.

The rail-mounted energy analyzers, which can measure reactive energy alongside active energy, also monitor possible compensation needs. Both import and export energy measurement capability allows you to monitor the energy generated as well as the energy consumed. In addition to energy parameters, it can measure current, voltage, power, and frequency.

THD measurement, which is one of the power quality parameters used especially for 3-phase measurements, is a great help. They are also used to monitor harmonics, which are the most important problems of power quality problems.

With the NDM50 series model, it can work in a pre-paid system with the logic of using as much as you pay, and if the subscriber does not pay the bill, due to the circuit breaker of the analyzers the energy is switched off remotely without going near the analyzers.

The prepaid system is generally used in buildings such as shopping malls, residences, timeshares. This design saves the user from problems such as last payment dates and directs them to be more planned. Prepaid fees also allow the distributor company to purchase more affordable electricity on a planned basis.

Rail Mounted Energy Analyzers Technical Specifications

  • Measures kWh, kVARh, kW, kVAR, kVA, P, F, PF, Hz, dmd, V, A, etc.
  • Bi-directional measurement imp&exp
  • Two tariff input (optional)
  • RS485 Modbus
  • Din rail mounting
  • 100A direct connection
  • Better than Class 1 / B accuracy
  • Pulse outputs
  • Internal circuit breaker and digital output for the prepaid option
Model Connection Type Communication Max. Current Network / Generator Tariff Option Prepaid Option Dimensions (mm) (LxWxH)
NDM30-2T 1p2w Modbus 100 A Yes No 36x99x63
NDM70-D2T 3p4w, 3p3w, 1p2w Modbus 100 A Yes No 72x100x66
NDM70-CT2T 3p4w, 3p3w, 1p2w Modbus 5(6) A Yes No 72x92x65
NDM50-D 3p4w Modbus 100 A Yes Yes 126,5x96,5x76,5
NDM50-CT 3p4w Modbus 5(6) A No Yes 126,5x96,5x76,5
NPM 50 3p4w, 3p3w, 1p2w Modbus 5(6) A Yes No 90x105x67
Type Size Download Link
General Catalog PDF 1 MB  Download
Measurement and Management Systems Catalog PDF 1 MB  Download
Asset NPM50 Technical Document PDF 1 MB  Download
Asset NDM30 Series Technical Document Please get in touch
Asset NDM70 Series Technical Document Please get in touch
Asset NDM50 Series Technical Document Please get in touch