SHTEEL 25A (7-3) 3-Phase Voltage Stabilizer NNST-3x5.5 kW

SHTEEL series voltage stabilizers — a modern solution for three-phase power grids, which are increasingly used in cottages, apartment buildings, and industrial facilities. They are designed to ensure a stable and reliable power supply for critical equipment and machinery.

Why choose SHTEEL three-phase voltage stabilizers?

• Fast response time — 20 ms — instant reaction to changes in grid parameters.
• Reliable protection against overvoltage, overheating, short circuits, and overloads.
• Digital monitoring: voltmeters, power meter (kW), microprocessor control.
• “Transit” mode — for operation without stabilization when needed.
• WEB interface (optional) — control of the stabilizer via a PC or smartphone.
• Compatibility with generators and hybrid systems, including solar power plants.
• Synchronizers (optional) — protection in case of single-phase failure.
• Quality proven over the years — over 15 years of serial production.

Technical specifications of SHTEEL models

Design features

• Floor-standing rack format — convenient for installation.
• Terminal connectors — for easy connection to the mains.
• Modular architecture — consists of single-phase removable modules.
• Equipped with SEMIKRON or MCMA 110 A (IXYS) power modules.
• Enclosure protection rating — IP20 (protection against dust and moisture).
• Power factor — 0.98; Efficiency — up to 98%.
• Start-up delay — 5–7 seconds.

Selection assistance and consultation

Our company Total-Energo LLC provides full support in selecting a voltage stabilizer: we will take into account the characteristics of your power grid, load type, power, and voltage level. If necessary, we will select a custom solution or offer an optimal configuration (including WEB modules, synchronizers, etc.).

Contact us—we will provide consultation, perform calculations, and offer a solution for your facility.