
The PRO-S 3KVA is a small voltage stabilizer designed to maintain a consistent and stable power supply for equipment sensitive to voltage instability. As a compact automatic servo voltage stabilizer, it suits applications where a large voltage stabilizer isn't practical — from retail outlets and medical facilities to light manufacturing environments. It handles an input range of 140V – 276V and delivers a regulated 230V output with an accuracy of ±1–1.5%, ensuring connected equipment operates within its designed voltage window at all times.
Engineered for continuous duty, this servo voltage stabilizer combines Class H insulation with an efficiency rating of up to 98%, minimising energy waste and thermal stress across extended operating cycles. Ambient temperatures up to 50°C present no barrier to normal operation, while the front-mounted LCD screen provides at-a-glance visibility of live input and output voltage. Should conditions move outside safe limits, the built-in protection system of this voltage stabilizer regulator responds immediately — covering overvoltage, undervoltage, overload, short circuit, and overtemperature scenarios — with a 6-second safe-start delay adding an extra layer of defence every time the unit is energised.
Wall-mountable and quick to commission, the PRO-S 3KVA voltage stabilizer is certified to CE, cULus, and TÜV Austria standards — a dependable and compliant automatic voltage stabilizer available across Egypt for residential, commercial, and industrial installations alike.
| Specification | Value |
| Rated input voltage | 230 Vac |
| Permissible input tolerance | +20% to −30% (140V – 276V) |
| Rated output voltage | 230 Vac |
| Output accuracy | ±1 – 1.5% |
| Rated power | 3 – 5 KVA |
| Rated current | 12 A / 20 A |
| Frequency | 50 / 60 Hz |
| Efficiency | Up to 98% |
| Insulation class | Class H |
| Max ambient temperature | 50 °C |
| Protection index | IP23 Indoor |
| Test voltage | 3.5 KV |
| Dimensions (A × B × C) | 362 × 250 × 178 mm |
| Weight | 12.50 – 15.65 KG |
| Terminal | Screw type |
| Standards | IEC 61000 · IEC 61558 · IEC 62103 · IEC 60529 |