AC Voltage Stabilizator Modalis MR3000

Modalis MR 3000 AC Voltage Stabilizer


Modalis MR 3000 single-phase AC voltage stabilizer is part of the Modalis product range of Standard series voltage stabilizers.

Modalis MR 3000 voltage stabilizer is designed for protection of  home and office appliances and industrial equimpent with aggregate power consumption of up to  3 kVA (microwave ovens, air pumps, compressor pumps, copy machines, etc). To power up across-the-line motors (found in refrigerators, washing machines, air pumps, high-pressure washers, and power toold), the voltage stabilizer must have a reserve capacity that's 1.5-3 times greater than the motor's own capacity. 

Modalis MR 3000 voltage stabilizer is designed as a desktop unit with indicator display and power switch on the front panel and screw terminal for connecting power supply and load cables on the back panel.






     Design features:

  • desktop case;
  • toroidal power autotransformer;
  • self-cooling (no fan);
  • discrete (step-by-step) adjustment of output voltage, closed transition; 
  • wide range of input voltage;
  • high overload capacity;
  • relay power-switching circuits;
  • 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 voltage is restored to levels within the allowed range of operation;
  • output power filter to suppress high frequency distortions;
  • LED indicators of operating modes;
  • screw terminal for connecting power supply and load cables.

Product specifications


Number of phases 1
Maximum load capacity, kVA 3
Admissible overload 200% - 2 s, 100% - 15 s
Effective range of input phase voltage, V 185-270
Extreme range of input phase voltage, V 145-285
Rated input frequency, Hz 50
Input frequency range, Hz 48-52
Output phase voltage stabilization, % ±5,5
Effective range of output phase voltage, V 218-242
Extreme range of output phase voltage, V 190-252
Number of correction levels 7
Energy conversion efficiency, % 95
Range of load change, % 0...100
Load power factor 0-1
Type of switches relay
Time of voltage adjustment for one correction level, ms <=200
Overload and short-circuit protection electronic, with automated switch
EMI/RFI filter output
External temperature range, °С +1...+40
Relative air humidity, % 0...80
Cooling procedure self-cooling
Protection rating IP20
Weight, kg 15
Overall dimensions (WxHxD), mm 185 x 220 x 380
Overall dimensions in packaging (WxHxD), mm 195 х 260 х 385
Warranty, months 12
Service life period, years 10


pdf Manual