Modalis MR 48000-3 AC voltage stabilizer


Стабилизатор переменного напряжения Modalis MR 48000-3Modalis MR 48000-3 three-phase AC voltage stabilizer is part of the Modalis product range of Standard series voltage stabilizers.

Modalis MR 48000-3 voltage stabilizer is designed for protection of home and office appliances and industrial equipment with aggregate power consumption of up to 48 kVA. To power up induction motors (found in the industrial machines, refrigerators,air pumps, compression pumps, and high-pressure washers), the voltage stabilizer must have a reserve capacity that's at least three times greater than the motor's own capacity. 

Modalis MR 48000-3 voltage stabilizer consists of three free-standing one-phase power units, a wall-mounted switching units, and a set of cables to connect the units.


Design feature:

  • voltage stabilizer consists of three one-phase power units, a switching unit, and a set of cables;
  • toroidal power autotransformer;
  • double protection level from critically high input voltage;
  • automatic disconnection of he autotransformer in case of input voltage surge over 300V with subsequent automatic reactivation once a safe voltage has been restored;
  • self-cooling procedure (no fan);
  • discrete (step-by-step) adjustment of output voltage;
  • high overload capacity;
  • relay power switches;
  • fast response time;
  • electronic overload and short-circuit protection featuing 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;
  • automatic load cutoff in case of voltage loss in one of the phases;
  • 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.

You can read all about the similar capacity Modalis Etalon series precision voltage stabilizer here.


Product specifications

Number of phases 3
Maximum load capacity, kVA 48
Admissable overload 200%-1s, 150%-2s, 50%-3s, 12%-60s
Effective range of input phase voltage, V 180-245
Extreme range of input phase voltage, V 150-255
Rated input frequency, Hz 50
Input frequency range, Hz 48-52
Maximum off-load current with input voltage of 220V, mA 221
Output phase voltage stabilization, % ±4
Effective range of output phase voltage, V 211-229
Extreme range of output phase voltage, V 176-242
Number of correction levels 8
Energy conversion efficiency, % 98
Range of load change, % 0...100
Load power factor 0-1
Type of switches relay
Time of voltage adjustment for one correction level, ms <=40
Overload and short-circuit protection electronic, with automated switch
EMI/RFI filter input/output
External temperature range, °С +1...+40
Relative air humidity, % 0...80
Cooling procedure self-cooling
Protection rating IP30
Weight, kg 242
Overall dimensions (WxHxD), mm 3х(330x670x570)+1х(480х600х270)
Overall dimensions in packaging (WxHxD), mm 3х(440х820х690)+1x(520х770х330)
Warranty, months 12
Service life period, years 10


pdf Manual
pdf Certificate