MR800T-SPT-300

 

Stabilizers for heating systems

 

The Thermo-Sim (ST and SPT models) series of voltage stabilizers was designed specifically for protection of control relays in gas boilers and circulation pumps consistent with requirements of leading international manufacturers of heating equipment.

Manufacturers of all modern gas boilers recommend connecting the boilers to the power system using a voltage stabilizer. Many manufacturers even void the warranty if clients fail to use a voltage stabilizer.

We designed Modalis Thermo-Sim voltage stabilizers (ST models) specifically for the purpose of protecting control relays in gas boilers and circulation pumps. This model features enhanced resistance to external conditions and a convenient wall mount.

The software of the programmable microcontroller and custom circuit design of these stabilizers ensure their increased durability and reliability, as well as stability in both operation and recovery after voltage surges.

 

Design features

Model Number of
phases
Max load, kVA Input phase effective/extreme voltage range, V Output phase stabilization,% Output phase effective/extreme voltage range, V Efficiency,
%
Overall Dimensions
(WxHxD), mm
Weight, kg
MR 250ST 1 0,25 175-275/160-285 +/- 4,5 220-240/200-252 95 205*240*72 3
MR 400ST 1 0,4 175-275/160-285 +/- 4,5 220-240/200-252 95 205*240*72 3,6
MR 600ST 1 0,6 175-275/160-285 +/- 4,5 220-240/200-252 95 205*240*72 4
MR 800ST 1 0,8 175-275/160-285 +/- 4,5 220-240/200-252 95 205*240*72 4
MR 1200SPT 1 1,2 180-260/160-275 +/- 3,5 222-238/200-253 95 248*346*146 8
MR 2000SPT 1 2,0 180-260/160-275 +/- 3,5 222-238/200-253 95 248*346*146 10
MR 3000SPT 1 3,0 180-260/160-275 +/- 3,5 222-238/200-253 95 248*346*146 14

 

  • TRIAC power switches;
  • self-cooling (no fan except for models MR 2000SPT and MR 3000SPT);
  • vertical wall-mount option;
  • ability to work at declared load power within the entire range of input voltages;
  • double load protection from critically high input voltage;
  • low noise emission thanks to the absence of relays and fans (models MR 250ST... MR 1200 SPT)
  • automatic disconnection of autotransformer in case of input voltage surge over 300V with subsequent automatic reactivation once safe voltage has been restored;
  • electronic overload and short-circuit protection featuring automatic disconnection and subsequent nonrecurrent automatic reactivation;
  • nonrecurrent automatic reactivation after a shut-off due to overload;
  • output power filter to suppress high frequency distortions;
  • LED indicators of operating modes;
  • terminal blocks (models MR 1200SPT...MR 3000SPT);
  • warranty - 24 months.