AC voltage stabilizer Modalis MR 400


Modalis MR 400 AC voltage stabilizer


Modalis MR 400 voltage stabilizer is designed for protection of home and office appliances and industrial equipment with aggregate power consumption of up to 400 VA (TV sets, PCs, fax machine, office phone switchboards, etc). To power up across-the-line motors (found in refrigerators, washing machines, air pumps, compression pumps, high-pressure washers and power tools), the voltage stabilizer must have a reserve capacity that's 1.5-3 times greater than the motor's own capacity.

Modalis MR 400 voltage stabilized is designed as a desktop unit with indicator display and power switch on the front panel, two European standard sockets and automatic safety on the back panel. There's a cable with European standard plug for power connection.


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;
  • self-cooling procedure (no fan);
  • discrete (step-by-step) adjustment of output voltage;
  • wide range of input voltage;
  • high overload capacity;
  • relay power switches;
  • fast response time;
  • electronic overload and short-circuit protection featuring automatic disconnection;
  • abiility to work at declared load power within the entire range of input voltages;
  • automatic power cutoff when input of output voltage exceeds the preset threshold with subsequent automatic reactivation after the voltage is restored to levels within the allowed range of operation;
  • output power filter to suppress high frequency distortions;
  • LED indicator of operating modes;
  • two European standard sockets for load connection, cable with a European standard plug for power connection.


Product specifications

Number of phases 1
Maximum load capacity, kVA 0,4
Admissable overload 200% - 2s, 100% - 15s
Effective range of input phase voltage, V 175-275
Extreme range of input phase voltage, V 145-285
Rated input frequency, Hz 50
Input frequency range, Hz 48-52
Maximum off-load current with input voltage of 220V, mA 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 6
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 IP30
Weight, kg 3
Overall dimensions (WxHxD), mm 178 x 126 x 215
Overall dimensions in packaging (WxHxD), mm 190 х 140 х 250
Warranty, months 12
Service life period, years 10


pdf Manual
pdf Certificate