AC voltage regulator Modalis MR 7500




Modalis MR 12000 AC voltage stabilizer 


The single-phase AC voltage stabilizer Modalis MR 12000 is part of the Modalis Standard product line of voltage stabilizers.

This model is designed for protection of home and office appliances and industrial equipment with aggregate power consumption of up to 12 kVA (pumps, washing machines, refrigerators, PCs, printers, fax and copy machines, automatic telephone systems, air-conditioning units, etc). To power up across-the-line motors (which can be found inside refrigerators, washing machines, air pumps and compression pumps, high-pressure washers and electric tools), the voltage stabilizer must have reserve capacity that's anywhere between 1.5 and 3 times greater than the engine's own capacity.

Modalis MR 12000 voltage stabilizer is designed as a desktop unit with indicator display and power switch on the front panel, screw terminal for connecting power supply and load cables and bypass switch on the back side.





     Design features:

  • desktop case;
  • toroidal power autotransformer;
  • double load protection from critically high input voltage;
  • automatic disconnection of the autotransformer in case of input voltage surge over 300V with subsequent automatic reactivation once a safe voltage has been restored;
  • compulsory cooling procedure (built-in smart fan);
  • discrete (step-by-step) adjustment of output voltage;
  • wide range of  input voltage;
  • high overload capacity;
  • thyristor power-switching circuits;
  • fast response time;
  • electronic overload and short-circuit protection featuring automatic disconnection;
  • ability to work at declared load power within the entire range of input voltages;
  • automatic power cutoff when input or output voltage exceeds the preset threshold with subsequent automatic reactivation after the voltage is restored to levels within the allowed range of operation;
  • manual bypass;
  • input and output power filter to suppress high frequency distortions;
  • LED indicators of operating modes and main parameters (input and output voltage, load power);
  • screw terminal for connecting power supply and load cables.


Product specifications

Number of phases 1
Maximum load capacity, kVA 12
Admissible overload 100% - 10 с
Effective range of input phase voltage, V 165-265
Extreme range of input phase voltage, V 145-285
Rated input frequency, Hz 50 ±2
Input frequency range, Hz 48-52
Output phase voltage stabilization, % ±5
Effective range of output phase voltage, V 219-241
Number of correction levels 7
Energy conversion efficiency, % 95
Range of load change, % 0...100
Load power factor 0-1
Type of switches thyristor power-switching circuits
Time of voltage regulation for one correction level, msс <=30
Overload and short-circuit protection electronic, with automated switch
EMI/RFI filter input/output
Range of external temperature, °С +1...+40
Relative air humidity, % 0...80
Cooling procedure compulsory, smart fan
Protection rating IP20
Weight, kg 43
Overall dimensions (WxHxD), mm 441 x 260 x 400
Warranty, months 24
Service life period, years 10


pdf Manual