Low Voltage Systems

Concrete substations HEKA C are delivered as fully integrated turnkey systems, engineered to meet the evolving needs of various end users. While utility companies remain the primary customers, CSS solutions are used by clients requiring new or expanding existing medium-voltage connections to the grid.

CombiFLEX is mid-to-heavy duty technical building solution, built for larger installations and heavier equipment. Compared to EasyFLEX, it offers a stronger structure, increased space and higher load capacity, making it a popular choice for E-House systems and demanding technical building applications. Designed for customers in the energy, industry and infrastructure sectors, CombiFLEX provides durable, prefabricated housing for complex electrical and mechanical equipment. The result is a modular technical building that protects critical systems, supports safe operation and helps projects move forward with confidence.

Zeus is Harju Elekter’s most compact E-House solution, designed for fast production and easy scaling when projects require multiple similar units. Its sheet metal structure and flexible modular design make it a practical choice for prefabricated E-Houses and compact electrical houses where speed and consistency matter. Built for energy, transport and infrastructure applications, Zeus provides a space-efficient equipment shelter for housing electrical equipment and power distribution systems. The result is a reliable solution that simplifies deployment while protecting critical systems in everyday operating conditions.

Atlas is Harju Elekter’s most durable containerized E-House, built for the heaviest equipment and the harshest operating conditions. Delivered as a welded steel electrical house, it is designed to withstand extreme loads, challenging weather and corrosion, providing long-term protection and reliable performance for critical power distribution equipment.