Tronic HS 3000-DI 3 kVA Automatic Voltage Stabilizer, 220V/110V Output

Our review

This Tronic unit is a full-automatic AC voltage stabilizer rated at 3 kVA, sold under the model name HS 3000-DI. It is aimed at households or small businesses where the mains supply swings widely, since it accepts input anywhere from 150V to 250V AC and corrects it to a steady output with roughly ±4% accuracy. A useful detail is that it supports both 220V and 110V output, so it can serve appliances built for either voltage rather than only standard Tanzanian mains equipment. Before buying, work out the total wattage of everything you intend to connect and keep it comfortably below the 3 kVA rating, because motors and compressors draw extra current at startup. Also confirm whether your appliances need 110V or 220V, and decide whether you want a unit that also regulates during very low-voltage periods or one that simply disconnects. Compared with smaller stabilizers, this one covers more load; compared with servo-motor types, automatic relay designs like this tend to respond quickly but step in increments. It is available on Sokonia.