Stabilizer Pro S
PRO-S 20 kva single phase automatic voltage stabilizer
PRO-S 20 kva single phase automatic voltage stabilizer
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The PRO-S 20KVA is a 20 kva single phase automatic voltage stabilizer built to protect large electrical installations from the damaging effects of mains voltage fluctuations. Whether you need a mainline voltage stabilizer for home or a heavy-duty servo voltage stabilizer for industrial use, the PRO-S range delivers. It accepts a wide input range of 140V – 276V and regulates the output to a stable 230V with an accuracy of ±1–1.5%, ensuring all connected equipment receives a consistent and clean power supply at all times.
Rated at 20KVA with a continuous output current of 80A, this automatic servo voltage stabilizer operates at an efficiency of up to 98% with Class H insulation and advanced assembly technology that minimises heat losses during extended operation. A smart digital LCD display provides real-time monitoring of input and output voltage, while the built-in protection system automatically responds to overvoltage, undervoltage, overload, short circuit, and overtemperature conditions. An internal bypass and 6-second safe-start delay ensure supply continuity and a controlled power-on sequence for the connected load.
Suitable for large commercial buildings, industrial workshops, centralised HVAC systems, and heavy medical equipment setups, the PRO-S 20KVA voltage stabilizer regulator is floor-standing on heavy-duty castors for flexible positioning and easy relocation. From a 1kva automatic voltage stabilizer for small loads to a 20KVA servo voltage stabilizer for demanding applications, the PRO-S series covers every requirement. It operates reliably in ambient temperatures up to 50°C and carries CE, cULus, and TÜV Austria certifications — a dependable voltage stabilizer available across Egypt for demanding single-phase applications.
Technical Specifications (PRO-S 20KVA – Single Phase)
| 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 | 15 – 20 KVA |
| Rated current | 80 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) | 725 × 310 × 510 mm |
| Weight | 68.15 – 88.60 KG |
| Terminal | Screw type |
| Fixing method | Floor standing with castors |
| Protection features | Safe Start · Over & Under Voltage · Overload · Short Circuit · Over Heat · Internal Bypass |
| Standards | IEC 61000 · IEC 61558 · IEC 62103 · IEC 60529 |
